Merge branch 'master' into 40_45_82_update_roles

Makefile

@@ -30,6 +30,7 @@ SVELTE_SRC = $(wildcard $(FRONTEND)/src/*.svelte)         \
 $(TARGET): $(VAR) $(SVELTE_TARGETS)
 	$(info ===>  BUILD cc-backend)
 	@go build -ldflags=${LD_FLAGS} ./cmd/cc-backend
+	./cc-backend --migrate-db
 
 clean:
 	$(info ===>  CLEAN)
@@ -48,5 +49,4 @@ $(SVELTE_TARGETS): $(SVELTE_SRC)
 
 $(VAR):
 	@mkdir $(VAR)
-	@touch ./var/job.db
 	cd web/frontend && yarn install

README.md

@@ -98,6 +98,15 @@ A config file in the JSON format has to be provided using `--config` to override
 By default, if there is a `config.json` file in the current directory of the `cc-backend` process, it will be loaded even without the `--config` flag.
 You find documentation of all supported configuration and command line options [here](./configs.README.md).
 
+## Database initialization and migration
+
+Every cc-backend version supports a specific database version.
+On startup the version of the sqlite database is validated and cc-backend will terminate if the version does not match.
+cc-backend supports to migrate the database schema up to the required version using the `--migrate-db` command line option.
+In case the database file does not yet exist it is created and initialized by the `--migrate-db` command line option.
+In case you want to use a newer database version with an olden version of cc-backend you can downgrade a database using the external [migrate](https://github.com/golang-migrate/migrate) tool.
+In this case you have to provide the path to the migration files in a recent source tree: `./internal/repository/migrations/`.
+
 ## Development
 In case the REST or GraphQL API is changed the according code generators have to be used.
 

api/schema.graphqls

@@ -10,6 +10,7 @@ type Job {
   jobId:            Int!
   user:             String!
   project:          String!
+  jobName:          String
   cluster:          String!
   subCluster:       String!
   startTime:        Time!
@@ -202,6 +203,7 @@ input JobFilter {
   arrayJobId:  Int
   user:        StringInput
   project:     StringInput
+  jobName:     StringInput
   cluster:     StringInput
   partition:   StringInput
   duration:    IntRange
@@ -235,6 +237,7 @@ input StringInput {
   contains:   String
   startsWith: String
   endsWith:   String
+  in:         [String!]
 }
 
 input IntRange   { from: Int!,   to: Int! }
@@ -255,6 +258,7 @@ type HistoPoint {
 
 type JobsStatistics  {
   id:             ID!            # If `groupBy` was used, ID of the user/project/cluster
+  name:           String         # if User-Statistics: Given Name of Account (ID) Owner
   totalJobs:      Int!           # Number of jobs that matched
   shortJobs:      Int!           # Number of jobs with a duration of less than 2 minutes
   totalWalltime:  Int!           # Sum of the duration of all matched jobs in hours

cmd/cc-backend/main.go

@@ -13,7 +13,6 @@ import (
 	"io"
 	"net"
 	"net/http"
-	"net/url"
 	"os"
 	"os/signal"
 	"runtime"
@@ -62,19 +61,22 @@ var (
 )
 
 func main() {
-	var flagReinitDB, flagServer, flagSyncLDAP, flagGops, flagDev, flagVersion bool
+	var flagReinitDB, flagServer, flagSyncLDAP, flagGops, flagMigrateDB, flagDev, flagVersion, flagLogDateTime bool
-	var flagNewUser, flagDelUser, flagGenJWT, flagConfigFile, flagImportJob string
+	var flagNewUser, flagDelUser, flagGenJWT, flagConfigFile, flagImportJob, flagLogLevel string
 	flag.BoolVar(&flagReinitDB, "init-db", false, "Go through job-archive and re-initialize the 'job', 'tag', and 'jobtag' tables (all running jobs will be lost!)")
 	flag.BoolVar(&flagSyncLDAP, "sync-ldap", false, "Sync the 'user' table with ldap")
 	flag.BoolVar(&flagServer, "server", false, "Start a server, continues listening on port after initialization and argument handling")
 	flag.BoolVar(&flagGops, "gops", false, "Listen via github.com/google/gops/agent (for debugging)")
 	flag.BoolVar(&flagDev, "dev", false, "Enable development components: GraphQL Playground and Swagger UI")
 	flag.BoolVar(&flagVersion, "version", false, "Show version information and exit")
+	flag.BoolVar(&flagMigrateDB, "migrate-db", false, "Migrate database to supported version and exit")
+	flag.BoolVar(&flagLogDateTime, "logdate", false, "Set this flag to add date and time to log messages")
 	flag.StringVar(&flagConfigFile, "config", "./config.json", "Specify alternative path to `config.json`")
 	flag.StringVar(&flagNewUser, "add-user", "", "Add a new user. Argument format: `<username>:[admin,support,api,user]:<password>`")
 	flag.StringVar(&flagDelUser, "del-user", "", "Remove user by `username`")
 	flag.StringVar(&flagGenJWT, "jwt", "", "Generate and print a JWT for the user specified by its `username`")
 	flag.StringVar(&flagImportJob, "import-job", "", "Import a job. Argument format: `<path-to-meta.json>:<path-to-data.json>,...`")
+	flag.StringVar(&flagLogLevel, "loglevel", "debug", "Sets the logging level: `[debug (default),info,warn,err,fatal,crit]`")
 	flag.Parse()
 
 	if flagVersion {
@@ -85,6 +87,9 @@ func main() {
 		os.Exit(0)
 	}
 
+	// Apply config flags for pkg/log
+	log.Init(flagLogLevel, flagLogDateTime)
+
 	// See https://github.com/google/gops (Runtime overhead is almost zero)
 	if flagGops {
 		if err := agent.Listen(agent.Options{}); err != nil {
@@ -108,6 +113,11 @@ func main() {
 		config.Keys.DB = os.Getenv(envvar)
 	}
 
+	if flagMigrateDB {
+		repository.MigrateDB(config.Keys.DBDriver, config.Keys.DB)
+		os.Exit(0)
+	}
+
 	repository.Connect(config.Keys.DBDriver, config.Keys.DB)
 	db := repository.GetConnection()
 
@@ -118,7 +128,7 @@ func main() {
 			"ldap": config.Keys.LdapConfig,
 			"jwt":  config.Keys.JwtConfig,
 		}); err != nil {
-			log.Fatal(err)
+			log.Fatalf("auth initialization failed: %v", err)
 		}
 
 		if d, err := time.ParseDuration(config.Keys.SessionMaxAge); err != nil {
@@ -135,12 +145,12 @@ func main() {
 			if err := authentication.AddUser(&auth.User{
 				Username: parts[0], Projects: emptyPrj, Password: parts[2], Roles: strings.Split(parts[1], ","),
 			}); err != nil {
-				log.Fatal(err)
+				log.Fatalf("adding '%s' user authentication failed: %v", parts[0], err)
 			}
 		}
 		if flagDelUser != "" {
 			if err := authentication.DelUser(flagDelUser); err != nil {
-				log.Fatal(err)
+				log.Fatalf("deleting user failed: %v", err)
 			}
 		}
 
@@ -150,7 +160,7 @@ func main() {
 			}
 
 			if err := authentication.LdapAuth.Sync(); err != nil {
-				log.Fatal(err)
+				log.Fatalf("LDAP sync failed: %v", err)
 			}
 			log.Info("LDAP sync successfull")
 		}
@@ -158,41 +168,41 @@ func main() {
 		if flagGenJWT != "" {
 			user, err := authentication.GetUser(flagGenJWT)
 			if err != nil {
-				log.Fatal(err)
+				log.Fatalf("could not get user from JWT: %v", err)
 			}
 
 			if !user.HasRole(auth.RoleApi) {
-				log.Warn("that user does not have the API role")
+				log.Warnf("user '%s' does not have the API role", user.Username)
 			}
 
 			jwt, err := authentication.JwtAuth.ProvideJWT(user)
 			if err != nil {
-				log.Fatal(err)
+				log.Fatalf("failed to provide JWT to user '%s': %v", user.Username, err)
 			}
 
-			fmt.Printf("JWT for '%s': %s\n", user.Username, jwt)
+			fmt.Printf("MAIN > JWT for '%s': %s\n", user.Username, jwt)
 		}
 	} else if flagNewUser != "" || flagDelUser != "" {
 		log.Fatal("arguments --add-user and --del-user can only be used if authentication is enabled")
 	}
 
 	if err := archive.Init(config.Keys.Archive, config.Keys.DisableArchive); err != nil {
-		log.Fatal(err)
+		log.Fatalf("failed to initialize archive: %s", err.Error())
 	}
 
 	if err := metricdata.Init(config.Keys.DisableArchive); err != nil {
-		log.Fatal(err)
+		log.Fatalf("failed to initialize metricdata repository: %s", err.Error())
 	}
 
 	if flagReinitDB {
 		if err := repository.InitDB(); err != nil {
-			log.Fatal(err)
+			log.Fatalf("failed to re-initialize repository DB: %s", err.Error())
 		}
 	}
 
 	if flagImportJob != "" {
 		if err := repository.HandleImportFlag(flagImportJob); err != nil {
-			log.Fatalf("import failed: %s", err.Error())
+			log.Fatalf("job import failed: %s", err.Error())
 		}
 	}
 
@@ -210,12 +220,12 @@ func main() {
 		graphQLEndpoint.SetRecoverFunc(func(ctx context.Context, err interface{}) error {
 			switch e := err.(type) {
 			case string:
-				return fmt.Errorf("panic: %s", e)
+				return fmt.Errorf("MAIN > Panic: %s", e)
 			case error:
-				return fmt.Errorf("panic caused by: %w", e)
+				return fmt.Errorf("MAIN > Panic caused by: %w", e)
 			}
 
-			return errors.New("internal server error (panic)")
+			return errors.New("MAIN > Internal server error (panic)")
 		})
 	}
 
@@ -296,28 +306,9 @@ func main() {
 	}
 	secured.Handle("/query", graphQLEndpoint)
 
-	// Send a searchId and then reply with a redirect to a user or job.
+	// Send a searchId and then reply with a redirect to a user, or directly send query to job table for jobid and project.
 	secured.HandleFunc("/search", func(rw http.ResponseWriter, r *http.Request) {
-		if search := r.URL.Query().Get("searchId"); search != "" {
+		routerConfig.HandleSearchBar(rw, r, api)
-			job, username, err := api.JobRepository.FindJobOrUser(r.Context(), search)
-			if err == repository.ErrNotFound {
-				http.Redirect(rw, r, "/monitoring/jobs/?jobId="+url.QueryEscape(search), http.StatusTemporaryRedirect)
-				return
-			} else if err != nil {
-				http.Error(rw, err.Error(), http.StatusInternalServerError)
-				return
-			}
-
-			if username != "" {
-				http.Redirect(rw, r, "/monitoring/user/"+username, http.StatusTemporaryRedirect)
-				return
-			} else {
-				http.Redirect(rw, r, fmt.Sprintf("/monitoring/job/%d", job), http.StatusTemporaryRedirect)
-				return
-			}
-		} else {
-			http.Error(rw, "'searchId' query parameter missing", http.StatusBadRequest)
-		}
 	})
 
 	// Mount all /monitoring/... and /api/... routes.
@@ -362,7 +353,7 @@ func main() {
 	// Start http or https server
 	listener, err := net.Listen("tcp", config.Keys.Addr)
 	if err != nil {
-		log.Fatal(err)
+		log.Fatalf("starting http listener failed: %v", err)
 	}
 
 	if !strings.HasSuffix(config.Keys.Addr, ":80") && config.Keys.RedirectHttpTo != "" {
@@ -374,7 +365,7 @@ func main() {
 	if config.Keys.HttpsCertFile != "" && config.Keys.HttpsKeyFile != "" {
 		cert, err := tls.LoadX509KeyPair(config.Keys.HttpsCertFile, config.Keys.HttpsKeyFile)
 		if err != nil {
-			log.Fatal(err)
+			log.Fatalf("loading X509 keypair failed: %v", err)
 		}
 		listener = tls.NewListener(listener, &tls.Config{
 			Certificates: []tls.Certificate{cert},
@@ -392,16 +383,16 @@ func main() {
 
 	// Because this program will want to bind to a privileged port (like 80), the listener must
 	// be established first, then the user can be changed, and after that,
-	// the actuall http server can be started.
+	// the actual http server can be started.
 	if err := runtimeEnv.DropPrivileges(config.Keys.Group, config.Keys.User); err != nil {
-		log.Fatalf("error while changing user: %s", err.Error())
+		log.Fatalf("error while preparing server start: %s", err.Error())
 	}
 
 	wg.Add(1)
 	go func() {
 		defer wg.Done()
 		if err := server.Serve(listener); err != nil && err != http.ErrServerClosed {
-			log.Fatal(err)
+			log.Fatalf("starting server failed: %v", err)
 		}
 	}()
 
@@ -411,7 +402,7 @@ func main() {
 	go func() {
 		defer wg.Done()
 		<-sigs
-		runtimeEnv.SystemdNotifiy(false, "shutting down")
+		runtimeEnv.SystemdNotifiy(false, "Shutting down ...")
 
 		// First shut down the server gracefully (waiting for all ongoing requests)
 		server.Shutdown(context.Background())
@@ -425,7 +416,7 @@ func main() {
 			for range time.Tick(30 * time.Minute) {
 				err := jobRepo.StopJobsExceedingWalltimeBy(config.Keys.StopJobsExceedingWalltime)
 				if err != nil {
-					log.Errorf("error while looking for jobs exceeding theire walltime: %s", err.Error())
+					log.Warnf("Error while looking for jobs exceeding their walltime: %s", err.Error())
 				}
 				runtime.GC()
 			}

docs/Hands-on.md

@@ -40,15 +40,15 @@ Start by creating a base folder for all of the following steps.
     - `cd ../..`
 * Build Go Executable
     - `go build ./cmd/cc-backend/`
-* Prepare Datafolder and Database file
-    - `mkdir var`
-    - `touch var/job.db`
 * Activate & Config environment for cc-backend
     - `cp configs/env-template.txt  .env`
     - Optional: Have a look via `vim ./.env`
     - Copy the `config.json` file included in this tarball into the root directory of cc-backend: `cp ../../config.json  ./`
 * Back to toplevel `clustercockpit`
     - `cd ..`
+* Prepare Datafolder and Database file
+    - `mkdir var`
+    - `./cc-backend --migrate-db`
 
 ### Setup cc-metric-store
 * Clone Repository

docs/config.json

@@ -1,5 +1,5 @@
 {
-    "addr":            "0.0.0.0:8080",
+    "addr":            "127.0.0.1:8080",
     "archive": {
         "kind": "file",
         "path": "./var/job-archive"

docs/searchbar.md

@@ -0,0 +1,42 @@
+## Docs for ClusterCockpit Searchbar
+
+### Usage
+
+* Searchtags are implemented as `type:<query>` search-string
+    * Types `jobId, jobName, projectId, username, name` for roles `admin` and `support`
+        * `jobName` is jobName as persisted in `job.meta_data` table-column
+        * `username` is actual account identifier as persisted in `job.user` table-column
+        * `name` is account owners name as persisted in `user.name` table-column
+    * Types `jobId, jobName` for role `user`
+    * Examples:
+        * `jobName:myJob12`
+        * `jobId:123456`
+        * `username:abcd100`
+        * `name:Paul`
+* If no searchTag used: Best guess search with the following hierarchy
+    * `jobId -> username -> name -> projectId -> jobName`
+* Destinations:
+    * JobId: Always Job-Table (Allows multiple identical matches, e.g. JobIds from different clusters)
+    * JobName: Always Job-Table (Allows multiple identical matches, e.g. JobNames from different clusters)
+    * ProjectId: Always Job-Table
+    * Username
+        * If *one* match found: Opens detailed user-view (`/monitoring/user/$USER`)
+        * If *multiple* matches found: Opens user-table with matches listed (`/monitoring/users/`)
+            * **Please Note**: Only users with jobs will be shown in table! I.e., "multiple matches" can still be only one entry in table.
+    * Name
+        * If *one* matching username found: Opens detailed user-view (`/monitoring/user/$USER`)
+        * If *multiple* usernames found: Opens user-table with matches listed (`/monitoring/users/`)
+            * **Please Note**: Only users with jobs will be shown in table! I.e., "multiple matches" can still be only one entry in table.
+    * Best guess search always redirects to Job-Table or `/monitoring/user/$USER` (first username match)
+* Simple HTML Error if ...
+    * Best guess search fails -> 'Not Found'
+    * Query `type` is unknown
+    * More than two colons in string -> 'malformed'
+* Spaces trimmed (both for searchTag and queryString)
+    * `  job12` == `job12`
+    * `projectID : abcd ` == `projectId:abcd`
+* `jobName`- and `name-`queries work with a part of the target-string
+    * `jobName:myjob` for jobName "myjob_cluster1"
+    * `name:Paul` for name "Paul Atreides"
+
+* JobName GQL Query is resolved as matching the query as a part of the whole metaData-JSON in the SQL DB.

go.mod

@@ -1,6 +1,6 @@
 module github.com/ClusterCockpit/cc-backend
 
-go 1.17
+go 1.18
 
 require (
 	github.com/99designs/gqlgen v0.17.16
@@ -39,10 +39,13 @@ require (
 	github.com/go-openapi/jsonreference v0.20.0 // indirect
 	github.com/go-openapi/spec v0.20.7 // indirect
 	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/golang-migrate/migrate/v4 v4.15.2 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gorilla/securecookie v1.1.1 // indirect
 	github.com/gorilla/websocket v1.5.0 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/golang-lru v0.5.4 // indirect
 	github.com/influxdata/line-protocol v0.0.0-20210922203350-b1ad95c89adf // indirect
 	github.com/josharian/intern v1.0.0 // indirect
@@ -51,7 +54,7 @@ require (
 	github.com/lann/builder v0.0.0-20180802200727-47ae307949d0 // indirect
 	github.com/lann/ps v0.0.0-20150810152359-62de8c46ede0 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
@@ -59,17 +62,20 @@ require (
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/prometheus/client_model v0.3.0 // indirect
 	github.com/prometheus/procfs v0.8.0 // indirect
+	github.com/qustavo/sqlhooks/v2 v2.1.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/swaggo/files v0.0.0-20220728132757-551d4a08d97a // indirect
 	github.com/urfave/cli/v2 v2.8.1 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
 	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
 	golang.org/x/net v0.0.0-20220909164309-bea034e7d591 // indirect
 	golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b // indirect
 	golang.org/x/sys v0.0.0-20220913175220-63ea55921009 // indirect
 	golang.org/x/text v0.3.7 // indirect
 	golang.org/x/tools v0.1.12 // indirect
-	google.golang.org/appengine v1.6.6 // indirect
+	golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f // indirect
+	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/protobuf v1.28.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

internal/api/rest.go

@@ -135,7 +135,7 @@ type ApiTag struct {
 type TagJobApiRequest []*ApiTag
 
 func handleError(err error, statusCode int, rw http.ResponseWriter) {
-	log.Warnf("REST API: %s", err.Error())
+	log.Warnf("REST ERROR : %s", err.Error())
 	rw.Header().Add("Content-Type", "application/json")
 	rw.WriteHeader(statusCode)
 	json.NewEncoder(rw).Encode(ErrorResponse{
@@ -170,7 +170,7 @@ func decode(r io.Reader, val interface{}) error {
 // @router      /jobs/ [get]
 func (api *RestApi) getJobs(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleApi) {
-		handleError(fmt.Errorf("missing role: %#v", auth.RoleApi), http.StatusForbidden, rw)
+		handleError(fmt.Errorf("missing role: %v", auth.RoleApi), http.StatusForbidden, rw)
 		return
 	}
 
@@ -301,7 +301,7 @@ func (api *RestApi) getJobs(rw http.ResponseWriter, r *http.Request) {
 // @router      /jobs/tag_job/{id} [post]
 func (api *RestApi) tagJob(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleApi) {
-		handleError(fmt.Errorf("missing role: %#v", auth.RoleApi), http.StatusForbidden, rw)
+		handleError(fmt.Errorf("missing role: %v", auth.RoleApi), http.StatusForbidden, rw)
 		return
 	}
 
@@ -366,7 +366,7 @@ func (api *RestApi) tagJob(rw http.ResponseWriter, r *http.Request) {
 // @router      /jobs/start_job/ [post]
 func (api *RestApi) startJob(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleApi) {
-		handleError(fmt.Errorf("missing role: %#v", auth.RoleApi), http.StatusForbidden, rw)
+		handleError(fmt.Errorf("missing role: %v", auth.RoleApi), http.StatusForbidden, rw)
 		return
 	}
 
@@ -447,7 +447,7 @@ func (api *RestApi) startJob(rw http.ResponseWriter, r *http.Request) {
 // @router      /jobs/stop_job/{id} [post]
 func (api *RestApi) stopJobById(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleApi) {
-		handleError(fmt.Errorf("missing role: %#v", auth.RoleApi), http.StatusForbidden, rw)
+		handleError(fmt.Errorf("missing role: %v", auth.RoleApi), http.StatusForbidden, rw)
 		return
 	}
 
@@ -500,7 +500,7 @@ func (api *RestApi) stopJobById(rw http.ResponseWriter, r *http.Request) {
 // @router      /jobs/stop_job/ [post]
 func (api *RestApi) stopJobByRequest(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleApi) {
-		handleError(fmt.Errorf("missing role: %#v", auth.RoleApi), http.StatusForbidden, rw)
+		handleError(fmt.Errorf("missing role: %v", auth.RoleApi), http.StatusForbidden, rw)
 		return
 	}
 
@@ -546,7 +546,7 @@ func (api *RestApi) stopJobByRequest(rw http.ResponseWriter, r *http.Request) {
 // @router      /jobs/delete_job/{id} [delete]
 func (api *RestApi) deleteJobById(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleApi) {
-		handleError(fmt.Errorf("missing role: %#v", auth.RoleApi), http.StatusForbidden, rw)
+		handleError(fmt.Errorf("missing role: %v", auth.RoleApi), http.StatusForbidden, rw)
 		return
 	}
 
@@ -594,7 +594,7 @@ func (api *RestApi) deleteJobById(rw http.ResponseWriter, r *http.Request) {
 // @router      /jobs/delete_job/ [delete]
 func (api *RestApi) deleteJobByRequest(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleApi) {
-		handleError(fmt.Errorf("missing role: %#v", auth.RoleApi), http.StatusForbidden, rw)
+		handleError(fmt.Errorf("missing role: %v", auth.RoleApi), http.StatusForbidden, rw)
 		return
 	}
 
@@ -650,7 +650,7 @@ func (api *RestApi) deleteJobByRequest(rw http.ResponseWriter, r *http.Request)
 // @router      /jobs/delete_job_before/{ts} [delete]
 func (api *RestApi) deleteJobBefore(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleApi) {
-		handleError(fmt.Errorf("missing role: %#v", auth.RoleApi), http.StatusForbidden, rw)
+		handleError(fmt.Errorf("missing role: %v", auth.RoleApi), http.StatusForbidden, rw)
 		return
 	}
 
@@ -725,7 +725,7 @@ func (api *RestApi) checkAndHandleStopJob(rw http.ResponseWriter, job *schema.Jo
 
 // func (api *RestApi) importJob(rw http.ResponseWriter, r *http.Request) {
 // 	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleApi) {
-// 		handleError(fmt.Errorf("missing role: %#v", auth.RoleApi), http.StatusForbidden, rw)
+// 		handleError(fmt.Errorf("missing role: %v", auth.RoleApi), http.StatusForbidden, rw)
 // 		return
 // 	}
 
@@ -794,7 +794,7 @@ func (api *RestApi) getJWT(rw http.ResponseWriter, r *http.Request) {
 	me := auth.GetUser(r.Context())
 	if !me.HasRole(auth.RoleAdmin) {
 		if username != me.Username {
-			http.Error(rw, "only admins are allowed to sign JWTs not for themselves", http.StatusForbidden)
+			http.Error(rw, "Only admins are allowed to sign JWTs not for themselves", http.StatusForbidden)
 			return
 		}
 	}
@@ -819,13 +819,13 @@ func (api *RestApi) createUser(rw http.ResponseWriter, r *http.Request) {
 	rw.Header().Set("Content-Type", "text/plain")
 	me := auth.GetUser(r.Context())
 	if !me.HasRole(auth.RoleAdmin) {
-		http.Error(rw, "only admins are allowed to create new users", http.StatusForbidden)
+		http.Error(rw, "Only admins are allowed to create new users", http.StatusForbidden)
 		return
 	}
 
 	username, password, role, name, email, project := r.FormValue("username"), r.FormValue("password"), r.FormValue("role"), r.FormValue("name"), r.FormValue("email"), r.FormValue("project")
 	if len(password) == 0 && role != auth.RoleApi {
-		http.Error(rw, "only API users are allowed to have a blank password (login will be impossible)", http.StatusBadRequest)
+		http.Error(rw, "Only API users are allowed to have a blank password (login will be impossible)", http.StatusBadRequest)
 		return
 	}
 
@@ -848,12 +848,12 @@ func (api *RestApi) createUser(rw http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	rw.Write([]byte(fmt.Sprintf("User %#v successfully created!\n", username)))
+	rw.Write([]byte(fmt.Sprintf("User %v successfully created!\n", username)))
 }
 
 func (api *RestApi) deleteUser(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); !user.HasRole(auth.RoleAdmin) {
-		http.Error(rw, "only admins are allowed to delete a user", http.StatusForbidden)
+		http.Error(rw, "Only admins are allowed to delete a user", http.StatusForbidden)
 		return
 	}
 
@@ -868,7 +868,7 @@ func (api *RestApi) deleteUser(rw http.ResponseWriter, r *http.Request) {
 
 func (api *RestApi) getUsers(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); !user.HasRole(auth.RoleAdmin) {
-		http.Error(rw, "only admins are allowed to fetch a list of users", http.StatusForbidden)
+		http.Error(rw, "Only admins are allowed to fetch a list of users", http.StatusForbidden)
 		return
 	}
 
@@ -899,7 +899,7 @@ func (api *RestApi) getRoles(rw http.ResponseWriter, r *http.Request) {
 
 func (api *RestApi) updateUser(rw http.ResponseWriter, r *http.Request) {
 	if user := auth.GetUser(r.Context()); !user.HasRole(auth.RoleAdmin) {
-		http.Error(rw, "only admins are allowed to update a user", http.StatusForbidden)
+		http.Error(rw, "Only admins are allowed to update a user", http.StatusForbidden)
 		return
 	}
 
@@ -943,7 +943,7 @@ func (api *RestApi) updateConfiguration(rw http.ResponseWriter, r *http.Request)
 	rw.Header().Set("Content-Type", "text/plain")
 	key, value := r.FormValue("key"), r.FormValue("value")
 
-	fmt.Printf("KEY: %#v\nVALUE: %#v\n", key, value)
+	fmt.Printf("REST > KEY: %#v\nVALUE: %#v\n", key, value)
 
 	if err := repository.GetUserCfgRepo().UpdateConfig(key, value, auth.GetUser(r.Context())); err != nil {
 		http.Error(rw, err.Error(), http.StatusUnprocessableEntity)
@@ -955,7 +955,7 @@ func (api *RestApi) updateConfiguration(rw http.ResponseWriter, r *http.Request)
 
 func (api *RestApi) putMachineState(rw http.ResponseWriter, r *http.Request) {
 	if api.MachineStateDir == "" {
-		http.Error(rw, "not enabled", http.StatusNotFound)
+		http.Error(rw, "REST > machine state not enabled", http.StatusNotFound)
 		return
 	}
 
@@ -986,7 +986,7 @@ func (api *RestApi) putMachineState(rw http.ResponseWriter, r *http.Request) {
 
 func (api *RestApi) getMachineState(rw http.ResponseWriter, r *http.Request) {
 	if api.MachineStateDir == "" {
-		http.Error(rw, "not enabled", http.StatusNotFound)
+		http.Error(rw, "REST > machine state not enabled", http.StatusNotFound)
 		return
 	}
 

internal/auth/auth.go

@@ -185,30 +185,20 @@ func Init(db *sqlx.DB,
 	configs map[string]interface{}) (*Authentication, error) {
 	auth := &Authentication{}
 	auth.db = db
-	_, err := db.Exec(`
-	CREATE TABLE IF NOT EXISTS user (
-		username varchar(255) PRIMARY KEY NOT NULL,
-		password varchar(255) DEFAULT NULL,
-		ldap     tinyint      NOT NULL DEFAULT 0, /* col called "ldap" for historic reasons, fills the "AuthSource" */
-		name     varchar(255) DEFAULT NULL,
-		roles    varchar(255) NOT NULL DEFAULT "[]",
-		email    varchar(255) DEFAULT NULL,
-		projects varchar(255) NOT NULL DEFAULT "[]");`)
-	if err != nil {
-		return nil, err
-	}
 
 	sessKey := os.Getenv("SESSION_KEY")
 	if sessKey == "" {
 		log.Warn("environment variable 'SESSION_KEY' not set (will use non-persistent random key)")
 		bytes := make([]byte, 32)
 		if _, err := rand.Read(bytes); err != nil {
+			log.Error("Error while initializing authentication -> failed to generate random bytes for session key")
 			return nil, err
 		}
 		auth.sessionStore = sessions.NewCookieStore(bytes)
 	} else {
 		bytes, err := base64.StdEncoding.DecodeString(sessKey)
 		if err != nil {
+			log.Error("Error while initializing authentication -> decoding session key failed")
 			return nil, err
 		}
 		auth.sessionStore = sessions.NewCookieStore(bytes)
@@ -216,12 +206,14 @@ func Init(db *sqlx.DB,
 
 	auth.LocalAuth = &LocalAuthenticator{}
 	if err := auth.LocalAuth.Init(auth, nil); err != nil {
+		log.Error("Error while initializing authentication -> localAuth init failed")
 		return nil, err
 	}
 	auth.authenticators = append(auth.authenticators, auth.LocalAuth)
 
 	auth.JwtAuth = &JWTAuthenticator{}
 	if err := auth.JwtAuth.Init(auth, configs["jwt"]); err != nil {
+		log.Error("Error while initializing authentication -> jwtAuth init failed")
 		return nil, err
 	}
 	auth.authenticators = append(auth.authenticators, auth.JwtAuth)
@@ -229,6 +221,7 @@ func Init(db *sqlx.DB,
 	if config, ok := configs["ldap"]; ok {
 		auth.LdapAuth = &LdapAuthenticator{}
 		if err := auth.LdapAuth.Init(auth, config); err != nil {
+			log.Error("Error while initializing authentication -> ldapAuth init failed")
 			return nil, err
 		}
 		auth.authenticators = append(auth.authenticators, auth.LdapAuth)
@@ -243,6 +236,7 @@ func (auth *Authentication) AuthViaSession(
 
 	session, err := auth.sessionStore.Get(r, "session")
 	if err != nil {
+		log.Error("Error while getting session store")
 		return nil, err
 	}
 
@@ -272,7 +266,7 @@ func (auth *Authentication) Login(
 		user := (*User)(nil)
 		if username != "" {
 			if user, _ = auth.GetUser(username); err != nil {
-				// log.Warnf("login of unkown user %#v", username)
+				// log.Warnf("login of unkown user %v", username)
 				_ = err
 			}
 		}
@@ -284,7 +278,7 @@ func (auth *Authentication) Login(
 
 			user, err = authenticator.Login(user, rw, r)
 			if err != nil {
-				log.Warnf("login failed: %s", err.Error())
+				log.Warnf("user '%s' login failed: %s", user.Username, err.Error())
 				onfailure(rw, r, err)
 				return
 			}
@@ -303,7 +297,7 @@ func (auth *Authentication) Login(
 			session.Values["projects"] = user.Projects
 			session.Values["roles"] = user.Roles
 			if err := auth.sessionStore.Save(r, rw, session); err != nil {
-				log.Errorf("session save failed: %s", err.Error())
+				log.Warnf("session save failed: %s", err.Error())
 				http.Error(rw, err.Error(), http.StatusInternalServerError)
 				return
 			}

internal/auth/jwt.go

@@ -45,11 +45,13 @@ func (ja *JWTAuthenticator) Init(auth *Authentication, conf interface{}) error {
 	} else {
 		bytes, err := base64.StdEncoding.DecodeString(pubKey)
 		if err != nil {
+			log.Warn("Could not decode JWT public key")
 			return err
 		}
 		ja.publicKey = ed25519.PublicKey(bytes)
 		bytes, err = base64.StdEncoding.DecodeString(privKey)
 		if err != nil {
+			log.Warn("Could not decode JWT private key")
 			return err
 		}
 		ja.privateKey = ed25519.PrivateKey(bytes)
@@ -58,6 +60,7 @@ func (ja *JWTAuthenticator) Init(auth *Authentication, conf interface{}) error {
 	if pubKey = os.Getenv("CROSS_LOGIN_JWT_HS512_KEY"); pubKey != "" {
 		bytes, err := base64.StdEncoding.DecodeString(pubKey)
 		if err != nil {
+			log.Warn("Could not decode cross login JWT HS512 key")
 			return err
 		}
 		ja.loginTokenKey = bytes
@@ -68,6 +71,7 @@ func (ja *JWTAuthenticator) Init(auth *Authentication, conf interface{}) error {
 	if keyFound && pubKeyCrossLogin != "" {
 		bytes, err := base64.StdEncoding.DecodeString(pubKeyCrossLogin)
 		if err != nil {
+			log.Warn("Could not decode cross login JWT public key")
 			return err
 		}
 		ja.publicKeyCrossLogin = ed25519.PublicKey(bytes)
@@ -123,13 +127,15 @@ func (ja *JWTAuthenticator) Login(
 		if t.Method == jwt.SigningMethodHS256 || t.Method == jwt.SigningMethodHS512 {
 			return ja.loginTokenKey, nil
 		}
-		return nil, fmt.Errorf("unkown signing method for login token: %s (known: HS256, HS512, EdDSA)", t.Method.Alg())
+		return nil, fmt.Errorf("AUTH/JWT > unkown signing method for login token: %s (known: HS256, HS512, EdDSA)", t.Method.Alg())
 	})
 	if err != nil {
+		log.Warn("Error while parsing jwt token")
 		return nil, err
 	}
 
 	if err := token.Claims.Valid(); err != nil {
+		log.Warn("jwt token claims are not valid")
 		return nil, err
 	}
 
@@ -151,6 +157,7 @@ func (ja *JWTAuthenticator) Login(
 	if user == nil {
 		user, err = ja.auth.GetUser(sub)
 		if err != nil && err != sql.ErrNoRows {
+			log.Errorf("Error while loading user '%v'", sub)
 			return nil, err
 		} else if user == nil {
 			user = &User{
@@ -159,6 +166,7 @@ func (ja *JWTAuthenticator) Login(
 				AuthSource: AuthViaToken,
 			}
 			if err := ja.auth.AddUser(user); err != nil {
+				log.Errorf("Error while adding user '%v' to auth from token", user.Username)
 				return nil, err
 			}
 		}
@@ -223,11 +231,13 @@ func (ja *JWTAuthenticator) Auth(
 		return ja.publicKey, nil
 	})
 	if err != nil {
+		log.Warn("Error while parsing token")
 		return nil, err
 	}
 
 	// Check token validity
 	if err := token.Claims.Valid(); err != nil {
+		log.Warn("jwt token claims are not valid")
 		return nil, err
 	}
 
@@ -276,7 +286,7 @@ func (ja *JWTAuthenticator) Auth(
 		session.Values["roles"] = roles
 
 		if err := ja.auth.sessionStore.Save(r, rw, session); err != nil {
-			log.Errorf("session save failed: %s", err.Error())
+			log.Warnf("session save failed: %s", err.Error())
 			http.Error(rw, err.Error(), http.StatusInternalServerError)
 			return nil, err
 		}

internal/auth/ldap.go

@@ -39,21 +39,23 @@ func (la *LdapAuthenticator) Init(
 	if la.config != nil && la.config.SyncInterval != "" {
 		interval, err := time.ParseDuration(la.config.SyncInterval)
 		if err != nil {
+			log.Warnf("Could not parse duration for sync interval: %v", la.config.SyncInterval)
 			return err
 		}
 
 		if interval == 0 {
+			log.Info("Sync interval is zero")
 			return nil
 		}
 
 		go func() {
 			ticker := time.NewTicker(interval)
 			for t := range ticker.C {
-				log.Printf("LDAP sync started at %s", t.Format(time.RFC3339))
+				log.Printf("sync started at %s", t.Format(time.RFC3339))
 				if err := la.Sync(); err != nil {
-					log.Errorf("LDAP sync failed: %s", err.Error())
+					log.Errorf("sync failed: %s", err.Error())
 				}
-				log.Print("LDAP sync done")
+				log.Print("sync done")
 			}
 		}()
 	}
@@ -76,12 +78,14 @@ func (la *LdapAuthenticator) Login(
 
 	l, err := la.getLdapConnection(false)
 	if err != nil {
+		log.Warn("Error while getting ldap connection")
 		return nil, err
 	}
 	defer l.Close()
 
 	userDn := strings.Replace(la.config.UserBind, "{username}", user.Username, -1)
 	if err := l.Bind(userDn, r.FormValue("password")); err != nil {
+		log.Error("Error while binding to ldap connection")
 		return nil, err
 	}
 
@@ -104,12 +108,14 @@ func (la *LdapAuthenticator) Sync() error {
 	users := map[string]int{}
 	rows, err := la.auth.db.Query(`SELECT username FROM user WHERE user.ldap = 1`)
 	if err != nil {
+		log.Warn("Error while querying LDAP users")
 		return err
 	}
 
 	for rows.Next() {
 		var username string
 		if err := rows.Scan(&username); err != nil {
+			log.Warnf("Error while scanning for user '%s'", username)
 			return err
 		}
 
@@ -118,6 +124,7 @@ func (la *LdapAuthenticator) Sync() error {
 
 	l, err := la.getLdapConnection(true)
 	if err != nil {
+		log.Error("LDAP connection error")
 		return err
 	}
 	defer l.Close()
@@ -126,6 +133,7 @@ func (la *LdapAuthenticator) Sync() error {
 		la.config.UserBase, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
 		la.config.UserFilter, []string{"dn", "uid", "gecos"}, nil))
 	if err != nil {
+		log.Warn("LDAP search error")
 		return err
 	}
 
@@ -147,15 +155,17 @@ func (la *LdapAuthenticator) Sync() error {
 
 	for username, where := range users {
 		if where == IN_DB && la.config.SyncDelOldUsers {
-			log.Debugf("ldap-sync: remove %#v (does not show up in LDAP anymore)", username)
+			log.Debugf("sync: remove %v (does not show up in LDAP anymore)", username)
 			if _, err := la.auth.db.Exec(`DELETE FROM user WHERE user.username = ?`, username); err != nil {
+				log.Errorf("User '%s' not in LDAP anymore: Delete from DB failed", username)
 				return err
 			}
 		} else if where == IN_LDAP {
 			name := newnames[username]
-			log.Debugf("ldap-sync: add %#v (name: %#v, roles: [user], ldap: true)", username, name)
+			log.Debugf("sync: add %v (name: %v, roles: [user], ldap: true)", username, name)
 			if _, err := la.auth.db.Exec(`INSERT INTO user (username, ldap, name, roles) VALUES (?, ?, ?, ?)`,
 				username, 1, name, "[\""+RoleUser+"\"]"); err != nil {
+				log.Errorf("User '%s' new in LDAP: Insert into DB failed", username)
 				return err
 			}
 		}
@@ -170,12 +180,14 @@ func (la *LdapAuthenticator) getLdapConnection(admin bool) (*ldap.Conn, error) {
 
 	conn, err := ldap.DialURL(la.config.Url)
 	if err != nil {
+		log.Warn("LDAP URL dial failed")
 		return nil, err
 	}
 
 	if admin {
 		if err := conn.Bind(la.config.SearchDN, la.syncPassword); err != nil {
 			conn.Close()
+			log.Warn("LDAP connection bind failed")
 			return nil, err
 		}
 	}

internal/auth/local.go

@@ -39,7 +39,7 @@ func (la *LocalAuthenticator) Login(
 	r *http.Request) (*User, error) {
 
 	if e := bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(r.FormValue("password"))); e != nil {
-		return nil, fmt.Errorf("user '%s' provided the wrong password (%w)", user.Username, e)
+		return nil, fmt.Errorf("AUTH/LOCAL > user '%s' provided the wrong password (%w)", user.Username, e)
 	}
 
 	return user, nil

internal/auth/users.go

@@ -25,6 +25,7 @@ func (auth *Authentication) GetUser(username string) (*User, error) {
 	if err := sq.Select("password", "ldap", "name", "roles", "email", "projects").From("user").
 		Where("user.username = ?", username).RunWith(auth.db).
 		QueryRow().Scan(&hashedPassword, &user.AuthSource, &name, &rawRoles, &email, &rawProjects); err != nil {
+		log.Warnf("Error while querying user '%v' from database", username)
 		return nil, err
 	}
 
@@ -33,6 +34,7 @@ func (auth *Authentication) GetUser(username string) (*User, error) {
 	user.Email = email.String
 	if rawRoles.Valid {
 		if err := json.Unmarshal([]byte(rawRoles.String), &user.Roles); err != nil {
+			log.Warn("Error while unmarshaling raw roles from DB")
 			return nil, err
 		}
 	}
@@ -64,6 +66,7 @@ func (auth *Authentication) AddUser(user *User) error {
 	if user.Password != "" {
 		password, err := bcrypt.GenerateFromPassword([]byte(user.Password), bcrypt.DefaultCost)
 		if err != nil {
+			log.Error("Error while encrypting new user password")
 			return err
 		}
 		cols = append(cols, "password")
@@ -71,6 +74,7 @@ func (auth *Authentication) AddUser(user *User) error {
 	}
 
 	if _, err := sq.Insert("user").Columns(cols...).Values(vals...).RunWith(auth.db).Exec(); err != nil {
+		log.Errorf("Error while inserting new user '%v' into DB", user.Username)
 		return err
 	}
 
@@ -81,6 +85,7 @@ func (auth *Authentication) AddUser(user *User) error {
 func (auth *Authentication) DelUser(username string) error {
 
 	_, err := auth.db.Exec(`DELETE FROM user WHERE user.username = ?`, username)
+	log.Errorf("Error while deleting user '%s' from DB", username)
 	return err
 }
 
@@ -93,6 +98,7 @@ func (auth *Authentication) ListUsers(specialsOnly bool) ([]*User, error) {
 
 	rows, err := q.RunWith(auth.db).Query()
 	if err != nil {
+		log.Warn("Error while querying user list")
 		return nil, err
 	}
 
@@ -104,10 +110,12 @@ func (auth *Authentication) ListUsers(specialsOnly bool) ([]*User, error) {
 		user := &User{}
 		var name, email sql.NullString
 		if err := rows.Scan(&user.Username, &name, &email, &rawroles, &rawprojects); err != nil {
+			log.Warn("Error while scanning user list")
 			return nil, err
 		}
 
 		if err := json.Unmarshal([]byte(rawroles), &user.Roles); err != nil {
+			log.Warn("Error while unmarshaling raw role list")
 			return nil, err
 		}
 
@@ -129,11 +137,12 @@ func (auth *Authentication) AddRole(
 
 	user, err := auth.GetUser(username)
 	if err != nil {
+		log.Warnf("Could not load user '%s'", username)
 		return err
 	}
 
 	if !IsValidRole(role) {
-		return fmt.Errorf("invalid user role: %#v", role)
+		return fmt.Errorf("Invalid user role: %v", role)
 	}
 
 	if user.HasRole(role) {
@@ -142,6 +151,7 @@ func (auth *Authentication) AddRole(
 
 	roles, _ := json.Marshal(append(user.Roles, role))
 	if _, err := sq.Update("user").Set("roles", roles).Where("user.username = ?", username).RunWith(auth.db).Exec(); err != nil {
+		log.Errorf("Error while adding new role for user '%s'", user.Username)
 		return err
 	}
 	return nil
@@ -150,11 +160,12 @@ func (auth *Authentication) AddRole(
 func (auth *Authentication) RemoveRole(ctx context.Context, username string, role string) error {
 	user, err := auth.GetUser(username)
 	if err != nil {
+		log.Warnf("Could not load user '%s'", username)
 		return err
 	}
 
 	if !IsValidRole(role) {
-		return fmt.Errorf("invalid user role: %#v", role)
+		return fmt.Errorf("Invalid user role: %#v", role)
 	}
 
 	if role == RoleManager && len(user.Projects) != 0 {
@@ -174,11 +185,12 @@ func (auth *Authentication) RemoveRole(ctx context.Context, username string, rol
 	if exists == true {
 		var mroles, _ = json.Marshal(newroles)
 		if _, err := sq.Update("user").Set("roles", mroles).Where("user.username = ?", username).RunWith(auth.db).Exec(); err != nil {
+			log.Errorf("Error while removing role for user '%s'", user.Username)
 			return err
 		}
 		return nil
 	} else {
-		return fmt.Errorf("user %#v already does not have role %#v", username, role)
+		return fmt.Errorf("User '%v' already does not have role: %v", username, role)
 	}
 }
 
@@ -259,9 +271,13 @@ func FetchUser(ctx context.Context, db *sqlx.DB, username string) (*model.User,
 	if err := sq.Select("name", "email").From("user").Where("user.username = ?", username).
 		RunWith(db).QueryRow().Scan(&name, &email); err != nil {
 		if err == sql.ErrNoRows {
+			/* This warning will be logged *often* for non-local users, i.e. users mentioned only in job-table or archive, */
+			/* since FetchUser will be called to retrieve full name and mail for every job in query/list									 */
+			// log.Warnf("User '%s' Not found in DB", username)
 			return nil, nil
 		}
 
+		log.Warnf("Error while fetching user '%s'", username)
 		return nil, err
 	}
 

internal/config/config.go

@@ -49,7 +49,7 @@ func Init(flagConfigFile string) {
 	raw, err := os.ReadFile(flagConfigFile)
 	if err != nil {
 		if !os.IsNotExist(err) {
-			log.Fatal(err)
+			log.Fatalf("CONFIG ERROR: %v", err)
 		}
 	} else {
 		if err := schema.Validate(schema.Config, bytes.NewReader(raw)); err != nil {
@@ -58,7 +58,7 @@ func Init(flagConfigFile string) {
 		dec := json.NewDecoder(bytes.NewReader(raw))
 		dec.DisallowUnknownFields()
 		if err := dec.Decode(&Keys); err != nil {
-			log.Fatal(err)
+			log.Fatalf("could not decode: %v", err)
 		}
 
 		if Keys.Clusters == nil || len(Keys.Clusters) < 1 {

internal/config/config_test.go

@@ -19,7 +19,7 @@ func TestInit(t *testing.T) {
 func TestInitMinimal(t *testing.T) {
 	fp := "../../docs/config.json"
 	Init(fp)
-	if Keys.Addr != "0.0.0.0:8080" {
+	if Keys.Addr != "127.0.0.1:8080" {
-		t.Errorf("wrong addr\ngot: %s \nwant: 0.0.0.0:8080", Keys.Addr)
+		t.Errorf("wrong addr\ngot: %s \nwant: 127.0.0.1:8080", Keys.Addr)
 	}
 }

internal/graph/generated/generated.go

@@ -88,6 +88,7 @@ type ComplexityRoot struct {
 		Exclusive        func(childComplexity int) int
 		ID               func(childComplexity int) int
 		JobID            func(childComplexity int) int
+		JobName          func(childComplexity int) int
 		MetaData         func(childComplexity int) int
 		MonitoringStatus func(childComplexity int) int
 		NumAcc           func(childComplexity int) int
@@ -130,6 +131,7 @@ type ComplexityRoot struct {
 		HistDuration   func(childComplexity int) int
 		HistNumNodes   func(childComplexity int) int
 		ID             func(childComplexity int) int
+		Name           func(childComplexity int) int
 		ShortJobs      func(childComplexity int) int
 		TotalCoreHours func(childComplexity int) int
 		TotalJobs      func(childComplexity int) int
@@ -263,6 +265,8 @@ type ClusterResolver interface {
 	Partitions(ctx context.Context, obj *schema.Cluster) ([]string, error)
 }
 type JobResolver interface {
+	JobName(ctx context.Context, obj *schema.Job) (*string, error)
+
 	Tags(ctx context.Context, obj *schema.Job) ([]*schema.Tag, error)
 
 	MetaData(ctx context.Context, obj *schema.Job) (interface{}, error)
@@ -452,6 +456,13 @@ func (e *executableSchema) Complexity(typeName, field string, childComplexity in
 
 		return e.complexity.Job.JobID(childComplexity), true
 
+	case "Job.jobName":
+		if e.complexity.Job.JobName == nil {
+			break
+		}
+
+		return e.complexity.Job.JobName(childComplexity), true
+
 	case "Job.metaData":
 		if e.complexity.Job.MetaData == nil {
 			break
@@ -662,6 +673,13 @@ func (e *executableSchema) Complexity(typeName, field string, childComplexity in
 
 		return e.complexity.JobsStatistics.ID(childComplexity), true
 
+	case "JobsStatistics.name":
+		if e.complexity.JobsStatistics.Name == nil {
+			break
+		}
+
+		return e.complexity.JobsStatistics.Name(childComplexity), true
+
 	case "JobsStatistics.shortJobs":
 		if e.complexity.JobsStatistics.ShortJobs == nil {
 			break
@@ -1391,6 +1409,7 @@ type Job {
   jobId:            Int!
   user:             String!
   project:          String!
+  jobName:          String
   cluster:          String!
   subCluster:       String!
   startTime:        Time!
@@ -1583,6 +1602,7 @@ input JobFilter {
   arrayJobId:  Int
   user:        StringInput
   project:     StringInput
+  jobName:     StringInput
   cluster:     StringInput
   partition:   StringInput
   duration:    IntRange
@@ -1616,6 +1636,7 @@ input StringInput {
   contains:   String
   startsWith: String
   endsWith:   String
+  in:         [String!]
 }
 
 input IntRange   { from: Int!,   to: Int! }
@@ -1636,6 +1657,7 @@ type HistoPoint {
 
 type JobsStatistics  {
   id:             ID!            # If ` + "`" + `groupBy` + "`" + ` was used, ID of the user/project/cluster
+  name:           String         # if User-Statistics: Given Name of Account (ID) Owner
   totalJobs:      Int!           # Number of jobs that matched
   shortJobs:      Int!           # Number of jobs with a duration of less than 2 minutes
   totalWalltime:  Int!           # Sum of the duration of all matched jobs in hours
@@ -3038,6 +3060,47 @@ func (ec *executionContext) fieldContext_Job_project(ctx context.Context, field
 	return fc, nil
 }
 
+func (ec *executionContext) _Job_jobName(ctx context.Context, field graphql.CollectedField, obj *schema.Job) (ret graphql.Marshaler) {
+	fc, err := ec.fieldContext_Job_jobName(ctx, field)
+	if err != nil {
+		return graphql.Null
+	}
+	ctx = graphql.WithFieldContext(ctx, fc)
+	defer func() {
+		if r := recover(); r != nil {
+			ec.Error(ctx, ec.Recover(ctx, r))
+			ret = graphql.Null
+		}
+	}()
+	resTmp, err := ec.ResolverMiddleware(ctx, func(rctx context.Context) (interface{}, error) {
+		ctx = rctx // use context from middleware stack in children
+		return ec.resolvers.Job().JobName(rctx, obj)
+	})
+	if err != nil {
+		ec.Error(ctx, err)
+		return graphql.Null
+	}
+	if resTmp == nil {
+		return graphql.Null
+	}
+	res := resTmp.(*string)
+	fc.Result = res
+	return ec.marshalOString2ᚖstring(ctx, field.Selections, res)
+}
+
+func (ec *executionContext) fieldContext_Job_jobName(ctx context.Context, field graphql.CollectedField) (fc *graphql.FieldContext, err error) {
+	fc = &graphql.FieldContext{
+		Object:     "Job",
+		Field:      field,
+		IsMethod:   true,
+		IsResolver: true,
+		Child: func(ctx context.Context, field graphql.CollectedField) (*graphql.FieldContext, error) {
+			return nil, errors.New("field of type String does not have child fields")
+		},
+	}
+	return fc, nil
+}
+
 func (ec *executionContext) _Job_cluster(ctx context.Context, field graphql.CollectedField, obj *schema.Job) (ret graphql.Marshaler) {
 	fc, err := ec.fieldContext_Job_cluster(ctx, field)
 	if err != nil {
@@ -4231,6 +4294,8 @@ func (ec *executionContext) fieldContext_JobResultList_items(ctx context.Context
 				return ec.fieldContext_Job_user(ctx, field)
 			case "project":
 				return ec.fieldContext_Job_project(ctx, field)
+			case "jobName":
+				return ec.fieldContext_Job_jobName(ctx, field)
 			case "cluster":
 				return ec.fieldContext_Job_cluster(ctx, field)
 			case "subCluster":
@@ -4441,6 +4506,47 @@ func (ec *executionContext) fieldContext_JobsStatistics_id(ctx context.Context,
 	return fc, nil
 }
 
+func (ec *executionContext) _JobsStatistics_name(ctx context.Context, field graphql.CollectedField, obj *model.JobsStatistics) (ret graphql.Marshaler) {
+	fc, err := ec.fieldContext_JobsStatistics_name(ctx, field)
+	if err != nil {
+		return graphql.Null
+	}
+	ctx = graphql.WithFieldContext(ctx, fc)
+	defer func() {
+		if r := recover(); r != nil {
+			ec.Error(ctx, ec.Recover(ctx, r))
+			ret = graphql.Null
+		}
+	}()
+	resTmp, err := ec.ResolverMiddleware(ctx, func(rctx context.Context) (interface{}, error) {
+		ctx = rctx // use context from middleware stack in children
+		return obj.Name, nil
+	})
+	if err != nil {
+		ec.Error(ctx, err)
+		return graphql.Null
+	}
+	if resTmp == nil {
+		return graphql.Null
+	}
+	res := resTmp.(*string)
+	fc.Result = res
+	return ec.marshalOString2ᚖstring(ctx, field.Selections, res)
+}
+
+func (ec *executionContext) fieldContext_JobsStatistics_name(ctx context.Context, field graphql.CollectedField) (fc *graphql.FieldContext, err error) {
+	fc = &graphql.FieldContext{
+		Object:     "JobsStatistics",
+		Field:      field,
+		IsMethod:   false,
+		IsResolver: false,
+		Child: func(ctx context.Context, field graphql.CollectedField) (*graphql.FieldContext, error) {
+			return nil, errors.New("field of type String does not have child fields")
+		},
+	}
+	return fc, nil
+}
+
 func (ec *executionContext) _JobsStatistics_totalJobs(ctx context.Context, field graphql.CollectedField, obj *model.JobsStatistics) (ret graphql.Marshaler) {
 	fc, err := ec.fieldContext_JobsStatistics_totalJobs(ctx, field)
 	if err != nil {
@@ -6078,6 +6184,8 @@ func (ec *executionContext) fieldContext_Query_job(ctx context.Context, field gr
 				return ec.fieldContext_Job_user(ctx, field)
 			case "project":
 				return ec.fieldContext_Job_project(ctx, field)
+			case "jobName":
+				return ec.fieldContext_Job_jobName(ctx, field)
 			case "cluster":
 				return ec.fieldContext_Job_cluster(ctx, field)
 			case "subCluster":
@@ -6357,6 +6465,8 @@ func (ec *executionContext) fieldContext_Query_jobsStatistics(ctx context.Contex
 			switch field.Name {
 			case "id":
 				return ec.fieldContext_JobsStatistics_id(ctx, field)
+			case "name":
+				return ec.fieldContext_JobsStatistics_name(ctx, field)
 			case "totalJobs":
 				return ec.fieldContext_JobsStatistics_totalJobs(ctx, field)
 			case "shortJobs":
@@ -10389,7 +10499,7 @@ func (ec *executionContext) unmarshalInputJobFilter(ctx context.Context, obj int
 		asMap[k] = v
 	}
 
-	fieldsInOrder := [...]string{"tags", "jobId", "arrayJobId", "user", "project", "cluster", "partition", "duration", "minRunningFor", "numNodes", "numAccelerators", "numHWThreads", "startTime", "state", "flopsAnyAvg", "memBwAvg", "loadAvg", "memUsedMax"}
+	fieldsInOrder := [...]string{"tags", "jobId", "arrayJobId", "user", "project", "jobName", "cluster", "partition", "duration", "minRunningFor", "numNodes", "numAccelerators", "numHWThreads", "startTime", "state", "flopsAnyAvg", "memBwAvg", "loadAvg", "memUsedMax"}
 	for _, k := range fieldsInOrder {
 		v, ok := asMap[k]
 		if !ok {
@@ -10436,6 +10546,14 @@ func (ec *executionContext) unmarshalInputJobFilter(ctx context.Context, obj int
 			if err != nil {
 				return it, err
 			}
+		case "jobName":
+			var err error
+
+			ctx := graphql.WithPathContext(ctx, graphql.NewPathWithField("jobName"))
+			it.JobName, err = ec.unmarshalOStringInput2ᚖgithubᚗcomᚋClusterCockpitᚋccᚑbackendᚋinternalᚋgraphᚋmodelᚐStringInput(ctx, v)
+			if err != nil {
+				return it, err
+			}
 		case "cluster":
 			var err error
 
@@ -10629,7 +10747,7 @@ func (ec *executionContext) unmarshalInputStringInput(ctx context.Context, obj i
 		asMap[k] = v
 	}
 
-	fieldsInOrder := [...]string{"eq", "contains", "startsWith", "endsWith"}
+	fieldsInOrder := [...]string{"eq", "contains", "startsWith", "endsWith", "in"}
 	for _, k := range fieldsInOrder {
 		v, ok := asMap[k]
 		if !ok {
@@ -10668,6 +10786,14 @@ func (ec *executionContext) unmarshalInputStringInput(ctx context.Context, obj i
 			if err != nil {
 				return it, err
 			}
+		case "in":
+			var err error
+
+			ctx := graphql.WithPathContext(ctx, graphql.NewPathWithField("in"))
+			it.In, err = ec.unmarshalOString2ᚕstringᚄ(ctx, v)
+			if err != nil {
+				return it, err
+			}
 		}
 	}
 
@@ -11000,6 +11126,23 @@ func (ec *executionContext) _Job(ctx context.Context, sel ast.SelectionSet, obj
 			if out.Values[i] == graphql.Null {
 				atomic.AddUint32(&invalids, 1)
 			}
+		case "jobName":
+			field := field
+
+			innerFunc := func(ctx context.Context) (res graphql.Marshaler) {
+				defer func() {
+					if r := recover(); r != nil {
+						ec.Error(ctx, ec.Recover(ctx, r))
+					}
+				}()
+				res = ec._Job_jobName(ctx, field, obj)
+				return res
+			}
+
+			out.Concurrently(i, func() graphql.Marshaler {
+				return innerFunc(ctx)
+
+			})
 		case "cluster":
 
 			out.Values[i] = ec._Job_cluster(ctx, field, obj)
@@ -11312,6 +11455,10 @@ func (ec *executionContext) _JobsStatistics(ctx context.Context, sel ast.Selecti
 			if out.Values[i] == graphql.Null {
 				invalids++
 			}
+		case "name":
+
+			out.Values[i] = ec._JobsStatistics_name(ctx, field, obj)
+
 		case "totalJobs":
 
 			out.Values[i] = ec._JobsStatistics_totalJobs(ctx, field, obj)

internal/graph/model/models_gen.go

@@ -42,6 +42,7 @@ type JobFilter struct {
 	ArrayJobID      *int              `json:"arrayJobId"`
 	User            *StringInput      `json:"user"`
 	Project         *StringInput      `json:"project"`
+	JobName         *StringInput      `json:"jobName"`
 	Cluster         *StringInput      `json:"cluster"`
 	Partition       *StringInput      `json:"partition"`
 	Duration        *schema.IntRange  `json:"duration"`
@@ -71,6 +72,7 @@ type JobResultList struct {
 
 type JobsStatistics struct {
 	ID             string        `json:"id"`
+	Name           *string       `json:"name"`
 	TotalJobs      int           `json:"totalJobs"`
 	ShortJobs      int           `json:"shortJobs"`
 	TotalWalltime  int           `json:"totalWalltime"`
@@ -105,6 +107,7 @@ type StringInput struct {
 	Contains   *string  `json:"contains"`
 	StartsWith *string  `json:"startsWith"`
 	EndsWith   *string  `json:"endsWith"`
+	In         []string `json:"in"`
 }
 
 type TimeRangeOutput struct {

internal/graph/schema.resolvers.go

@@ -16,6 +16,7 @@ import (
 	"github.com/ClusterCockpit/cc-backend/internal/metricdata"
 	"github.com/ClusterCockpit/cc-backend/internal/repository"
 	"github.com/ClusterCockpit/cc-backend/pkg/archive"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
@@ -24,6 +25,11 @@ func (r *clusterResolver) Partitions(ctx context.Context, obj *schema.Cluster) (
 	return r.Repo.Partitions(obj.Name)
 }
 
+// JobName is the resolver for the jobName field.
+func (r *jobResolver) JobName(ctx context.Context, obj *schema.Job) (*string, error) {
+	return r.Repo.FetchJobName(obj)
+}
+
 // Tags is the resolver for the tags field.
 func (r *jobResolver) Tags(ctx context.Context, obj *schema.Job) ([]*schema.Tag, error) {
 	return r.Repo.GetTags(&obj.ID)
@@ -43,6 +49,7 @@ func (r *jobResolver) UserData(ctx context.Context, obj *schema.Job) (*model.Use
 func (r *mutationResolver) CreateTag(ctx context.Context, typeArg string, name string) (*schema.Tag, error) {
 	id, err := r.Repo.CreateTag(typeArg, name)
 	if err != nil {
+		log.Warn("Error while creating tag")
 		return nil, err
 	}
 
@@ -58,6 +65,7 @@ func (r *mutationResolver) DeleteTag(ctx context.Context, id string) (string, er
 func (r *mutationResolver) AddTagsToJob(ctx context.Context, job string, tagIds []string) ([]*schema.Tag, error) {
 	jid, err := strconv.ParseInt(job, 10, 64)
 	if err != nil {
+		log.Warn("Error while adding tag to job")
 		return nil, err
 	}
 
@@ -65,10 +73,12 @@ func (r *mutationResolver) AddTagsToJob(ctx context.Context, job string, tagIds
 	for _, tagId := range tagIds {
 		tid, err := strconv.ParseInt(tagId, 10, 64)
 		if err != nil {
+			log.Warn("Error while parsing tag id")
 			return nil, err
 		}
 
 		if tags, err = r.Repo.AddTag(jid, tid); err != nil {
+			log.Warn("Error while adding tag")
 			return nil, err
 		}
 	}
@@ -80,6 +90,7 @@ func (r *mutationResolver) AddTagsToJob(ctx context.Context, job string, tagIds
 func (r *mutationResolver) RemoveTagsFromJob(ctx context.Context, job string, tagIds []string) ([]*schema.Tag, error) {
 	jid, err := strconv.ParseInt(job, 10, 64)
 	if err != nil {
+		log.Warn("Error while parsing job id")
 		return nil, err
 	}
 
@@ -87,10 +98,12 @@ func (r *mutationResolver) RemoveTagsFromJob(ctx context.Context, job string, ta
 	for _, tagId := range tagIds {
 		tid, err := strconv.ParseInt(tagId, 10, 64)
 		if err != nil {
+			log.Warn("Error while parsing tag id")
 			return nil, err
 		}
 
 		if tags, err = r.Repo.RemoveTag(jid, tid); err != nil {
+			log.Warn("Error while removing tag")
 			return nil, err
 		}
 	}
@@ -101,6 +114,7 @@ func (r *mutationResolver) RemoveTagsFromJob(ctx context.Context, job string, ta
 // UpdateConfiguration is the resolver for the updateConfiguration field.
 func (r *mutationResolver) UpdateConfiguration(ctx context.Context, name string, value string) (*string, error) {
 	if err := repository.GetUserCfgRepo().UpdateConfig(name, value, auth.GetUser(ctx)); err != nil {
+		log.Warn("Error while updating user config")
 		return nil, err
 	}
 
@@ -126,6 +140,7 @@ func (r *queryResolver) User(ctx context.Context, username string) (*model.User,
 func (r *queryResolver) AllocatedNodes(ctx context.Context, cluster string) ([]*model.Count, error) {
 	data, err := r.Repo.AllocatedNodes(cluster)
 	if err != nil {
+		log.Warn("Error while fetching allocated nodes")
 		return nil, err
 	}
 
@@ -144,11 +159,13 @@ func (r *queryResolver) AllocatedNodes(ctx context.Context, cluster string) ([]*
 func (r *queryResolver) Job(ctx context.Context, id string) (*schema.Job, error) {
 	numericId, err := strconv.ParseInt(id, 10, 64)
 	if err != nil {
+		log.Warn("Error while parsing job id")
 		return nil, err
 	}
 
 	job, err := r.Repo.FindById(numericId)
 	if err != nil {
+		log.Warn("Error while finding job by id")
 		return nil, err
 	}
 
@@ -163,11 +180,13 @@ func (r *queryResolver) Job(ctx context.Context, id string) (*schema.Job, error)
 func (r *queryResolver) JobMetrics(ctx context.Context, id string, metrics []string, scopes []schema.MetricScope) ([]*model.JobMetricWithName, error) {
 	job, err := r.Query().Job(ctx, id)
 	if err != nil {
+		log.Warn("Error while querying job for metrics")
 		return nil, err
 	}
 
 	data, err := metricdata.LoadData(job, metrics, scopes, ctx)
 	if err != nil {
+		log.Warn("Error while loading job data")
 		return nil, err
 	}
 
@@ -175,7 +194,7 @@ func (r *queryResolver) JobMetrics(ctx context.Context, id string, metrics []str
 	for name, md := range data {
 		for scope, metric := range md {
 			if metric.Scope != schema.MetricScope(scope) {
-				panic("WTF?")
+				log.Panic("metric.Scope != schema.MetricScope(scope) : Should not happen!")
 			}
 
 			res = append(res, &model.JobMetricWithName{
@@ -204,11 +223,13 @@ func (r *queryResolver) Jobs(ctx context.Context, filter []*model.JobFilter, pag
 
 	jobs, err := r.Repo.QueryJobs(ctx, filter, page, order)
 	if err != nil {
+		log.Warn("Error while querying jobs")
 		return nil, err
 	}
 
 	count, err := r.Repo.CountJobs(ctx, filter)
 	if err != nil {
+		log.Warn("Error while counting jobs")
 		return nil, err
 	}
 
@@ -217,13 +238,14 @@ func (r *queryResolver) Jobs(ctx context.Context, filter []*model.JobFilter, pag
 
 // JobsStatistics is the resolver for the jobsStatistics field.
 func (r *queryResolver) JobsStatistics(ctx context.Context, filter []*model.JobFilter, groupBy *model.Aggregate) ([]*model.JobsStatistics, error) {
-	return r.jobsStatistics(ctx, filter, groupBy)
+	return r.Repo.JobsStatistics(ctx, filter, groupBy)
 }
 
 // JobsCount is the resolver for the jobsCount field.
 func (r *queryResolver) JobsCount(ctx context.Context, filter []*model.JobFilter, groupBy model.Aggregate, weight *model.Weights, limit *int) ([]*model.Count, error) {
 	counts, err := r.Repo.CountGroupedJobs(ctx, groupBy, filter, weight, limit)
 	if err != nil {
+		log.Warn("Error while counting grouped jobs")
 		return nil, err
 	}
 
@@ -257,6 +279,7 @@ func (r *queryResolver) NodeMetrics(ctx context.Context, cluster string, nodes [
 
 	data, err := metricdata.LoadNodeData(cluster, metrics, nodes, scopes, from, to, ctx)
 	if err != nil {
+		log.Warn("Error while loading node data")
 		return nil, err
 	}
 

internal/graph/stats.go

@@ -6,217 +6,16 @@ package graph
 
 import (
 	"context"
-	"database/sql"
 	"errors"
 	"fmt"
 	"math"
-	"time"
 
-	"github.com/99designs/gqlgen/graphql"
 	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
 	"github.com/ClusterCockpit/cc-backend/internal/metricdata"
-	"github.com/ClusterCockpit/cc-backend/internal/repository"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
-	"github.com/ClusterCockpit/cc-backend/pkg/archive"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
-	sq "github.com/Masterminds/squirrel"
 )
 
-// GraphQL validation should make sure that no unkown values can be specified.
-var groupBy2column = map[model.Aggregate]string{
-	model.AggregateUser:    "job.user",
-	model.AggregateProject: "job.project",
-	model.AggregateCluster: "job.cluster",
-}
-
-const ShortJobDuration int = 5 * 60
-
-// Helper function for the jobsStatistics GraphQL query placed here so that schema.resolvers.go is not too full.
-func (r *queryResolver) jobsStatistics(ctx context.Context, filter []*model.JobFilter, groupBy *model.Aggregate) ([]*model.JobsStatistics, error) {
-	// In case `groupBy` is nil (not used), the model.JobsStatistics used is at the key '' (empty string)
-	stats := map[string]*model.JobsStatistics{}
-
-	// `socketsPerNode` and `coresPerSocket` can differ from cluster to cluster, so we need to explicitly loop over those.
-	for _, cluster := range archive.Clusters {
-		for _, subcluster := range cluster.SubClusters {
-			corehoursCol := fmt.Sprintf("CAST(ROUND(SUM(job.duration * job.num_nodes * %d * %d) / 3600) as int)", subcluster.SocketsPerNode, subcluster.CoresPerSocket)
-			var rawQuery sq.SelectBuilder
-			if groupBy == nil {
-				rawQuery = sq.Select(
-					"''",
-					"COUNT(job.id)",
-					"CAST(ROUND(SUM(job.duration) / 3600) as int)",
-					corehoursCol,
-				).From("job")
-			} else {
-				col := groupBy2column[*groupBy]
-				rawQuery = sq.Select(
-					col,
-					"COUNT(job.id)",
-					"CAST(ROUND(SUM(job.duration) / 3600) as int)",
-					corehoursCol,
-				).From("job").GroupBy(col)
-			}
-
-			rawQuery = rawQuery.
-				Where("job.cluster = ?", cluster.Name).
-				Where("job.subcluster = ?", subcluster.Name)
-
-			query, qerr := repository.SecurityCheck(ctx, rawQuery)
-
-			if qerr != nil {
-				return nil, qerr
-			}
-
-			for _, f := range filter {
-				query = repository.BuildWhereClause(f, query)
-			}
-
-			rows, err := query.RunWith(r.DB).Query()
-			if err != nil {
-				return nil, err
-			}
-
-			for rows.Next() {
-				var id sql.NullString
-				var jobs, walltime, corehours sql.NullInt64
-				if err := rows.Scan(&id, &jobs, &walltime, &corehours); err != nil {
-					return nil, err
-				}
-
-				if id.Valid {
-					if s, ok := stats[id.String]; ok {
-						s.TotalJobs += int(jobs.Int64)
-						s.TotalWalltime += int(walltime.Int64)
-						s.TotalCoreHours += int(corehours.Int64)
-					} else {
-						stats[id.String] = &model.JobsStatistics{
-							ID:             id.String,
-							TotalJobs:      int(jobs.Int64),
-							TotalWalltime:  int(walltime.Int64),
-							TotalCoreHours: int(corehours.Int64),
-						}
-					}
-				}
-			}
-		}
-	}
-
-	if groupBy == nil {
-
-		query, qerr := repository.SecurityCheck(ctx, sq.Select("COUNT(job.id)").From("job").Where("job.duration < ?", ShortJobDuration))
-
-		if qerr != nil {
-			return nil, qerr
-		}
-
-		for _, f := range filter {
-			query = repository.BuildWhereClause(f, query)
-		}
-		if err := query.RunWith(r.DB).QueryRow().Scan(&(stats[""].ShortJobs)); err != nil {
-			return nil, err
-		}
-	} else {
-		col := groupBy2column[*groupBy]
-
-		query, qerr := repository.SecurityCheck(ctx, sq.Select(col, "COUNT(job.id)").From("job").Where("job.duration < ?", ShortJobDuration))
-
-		if qerr != nil {
-			return nil, qerr
-		}
-
-		for _, f := range filter {
-			query = repository.BuildWhereClause(f, query)
-		}
-		rows, err := query.RunWith(r.DB).Query()
-		if err != nil {
-			return nil, err
-		}
-
-		for rows.Next() {
-			var id sql.NullString
-			var shortJobs sql.NullInt64
-			if err := rows.Scan(&id, &shortJobs); err != nil {
-				return nil, err
-			}
-
-			if id.Valid {
-				stats[id.String].ShortJobs = int(shortJobs.Int64)
-			}
-		}
-	}
-
-	// Calculating the histogram data is expensive, so only do it if needed.
-	// An explicit resolver can not be used because we need to know the filters.
-	histogramsNeeded := false
-	fields := graphql.CollectFieldsCtx(ctx, nil)
-	for _, col := range fields {
-		if col.Name == "histDuration" || col.Name == "histNumNodes" {
-			histogramsNeeded = true
-		}
-	}
-
-	res := make([]*model.JobsStatistics, 0, len(stats))
-	for _, stat := range stats {
-		res = append(res, stat)
-		id, col := "", ""
-		if groupBy != nil {
-			id = stat.ID
-			col = groupBy2column[*groupBy]
-		}
-
-		if histogramsNeeded {
-			var err error
-			value := fmt.Sprintf(`CAST(ROUND((CASE WHEN job.job_state = "running" THEN %d - job.start_time ELSE job.duration END) / 3600) as int) as value`, time.Now().Unix())
-			stat.HistDuration, err = r.jobsStatisticsHistogram(ctx, value, filter, id, col)
-			if err != nil {
-				return nil, err
-			}
-
-			stat.HistNumNodes, err = r.jobsStatisticsHistogram(ctx, "job.num_nodes as value", filter, id, col)
-			if err != nil {
-				return nil, err
-			}
-		}
-	}
-
-	return res, nil
-}
-
-// `value` must be the column grouped by, but renamed to "value". `id` and `col` can optionally be used
-// to add a condition to the query of the kind "<col> = <id>".
-func (r *queryResolver) jobsStatisticsHistogram(ctx context.Context, value string, filters []*model.JobFilter, id, col string) ([]*model.HistoPoint, error) {
-
-	query, qerr := repository.SecurityCheck(ctx, sq.Select(value, "COUNT(job.id) AS count").From("job"))
-
-	if qerr != nil {
-		return nil, qerr
-	}
-
-	for _, f := range filters {
-		query = repository.BuildWhereClause(f, query)
-	}
-
-	if len(id) != 0 && len(col) != 0 {
-		query = query.Where(col+" = ?", id)
-	}
-
-	rows, err := query.GroupBy("value").RunWith(r.DB).Query()
-	if err != nil {
-		return nil, err
-	}
-
-	points := make([]*model.HistoPoint, 0)
-	for rows.Next() {
-		point := model.HistoPoint{}
-		if err := rows.Scan(&point.Value, &point.Count); err != nil {
-			return nil, err
-		}
-
-		points = append(points, &point)
-	}
-	return points, nil
-}
-
 const MAX_JOBS_FOR_ANALYSIS = 500
 
 // Helper function for the rooflineHeatmap GraphQL query placed here so that schema.resolvers.go is not too full.
@@ -228,10 +27,11 @@ func (r *queryResolver) rooflineHeatmap(
 
 	jobs, err := r.Repo.QueryJobs(ctx, filter, &model.PageRequest{Page: 1, ItemsPerPage: MAX_JOBS_FOR_ANALYSIS + 1}, nil)
 	if err != nil {
+		log.Error("Error while querying jobs for roofline")
 		return nil, err
 	}
 	if len(jobs) > MAX_JOBS_FOR_ANALYSIS {
-		return nil, fmt.Errorf("too many jobs matched (max: %d)", MAX_JOBS_FOR_ANALYSIS)
+		return nil, fmt.Errorf("GRAPH/STATS > too many jobs matched (max: %d)", MAX_JOBS_FOR_ANALYSIS)
 	}
 
 	fcols, frows := float64(cols), float64(rows)
@@ -248,19 +48,20 @@ func (r *queryResolver) rooflineHeatmap(
 
 		jobdata, err := metricdata.LoadData(job, []string{"flops_any", "mem_bw"}, []schema.MetricScope{schema.MetricScopeNode}, ctx)
 		if err != nil {
+			log.Error("Error while loading metrics for roofline")
 			return nil, err
 		}
 
 		flops_, membw_ := jobdata["flops_any"], jobdata["mem_bw"]
 		if flops_ == nil && membw_ == nil {
-			return nil, fmt.Errorf("'flops_any' or 'mem_bw' missing for job %d", job.ID)
+			return nil, fmt.Errorf("GRAPH/STATS > 'flops_any' or 'mem_bw' missing for job %d", job.ID)
 		}
 
 		flops, ok1 := flops_["node"]
 		membw, ok2 := membw_["node"]
 		if !ok1 || !ok2 {
 			// TODO/FIXME:
-			return nil, errors.New("todo: rooflineHeatmap() query not implemented for where flops_any or mem_bw not available at 'node' level")
+			return nil, errors.New("GRAPH/STATS > todo: rooflineHeatmap() query not implemented for where flops_any or mem_bw not available at 'node' level")
 		}
 
 		for n := 0; n < len(flops.Series); n++ {
@@ -292,10 +93,11 @@ func (r *queryResolver) rooflineHeatmap(
 func (r *queryResolver) jobsFootprints(ctx context.Context, filter []*model.JobFilter, metrics []string) (*model.Footprints, error) {
 	jobs, err := r.Repo.QueryJobs(ctx, filter, &model.PageRequest{Page: 1, ItemsPerPage: MAX_JOBS_FOR_ANALYSIS + 1}, nil)
 	if err != nil {
+		log.Error("Error while querying jobs for footprint")
 		return nil, err
 	}
 	if len(jobs) > MAX_JOBS_FOR_ANALYSIS {
-		return nil, fmt.Errorf("too many jobs matched (max: %d)", MAX_JOBS_FOR_ANALYSIS)
+		return nil, fmt.Errorf("GRAPH/STATS > too many jobs matched (max: %d)", MAX_JOBS_FOR_ANALYSIS)
 	}
 
 	avgs := make([][]schema.Float, len(metrics))
@@ -310,6 +112,7 @@ func (r *queryResolver) jobsFootprints(ctx context.Context, filter []*model.JobF
 		}
 
 		if err := metricdata.LoadAverages(job, metrics, avgs, ctx); err != nil {
+			log.Error("Error while loading averages for footprint")
 			return nil, err
 		}
 

internal/metricdata/cc-metric-store.go

@@ -16,6 +16,7 @@ import (
 	"time"
 
 	"github.com/ClusterCockpit/cc-backend/pkg/archive"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
@@ -78,6 +79,7 @@ func (ccms *CCMetricStore) Init(rawConfig json.RawMessage) error {
 
 	var config CCMetricStoreConfig
 	if err := json.Unmarshal(rawConfig, &config); err != nil {
+		log.Warn("Error while unmarshaling raw json config")
 		return err
 	}
 
@@ -124,11 +126,13 @@ func (ccms *CCMetricStore) doRequest(
 
 	buf := &bytes.Buffer{}
 	if err := json.NewEncoder(buf).Encode(body); err != nil {
+		log.Warn("Error while encoding request body")
 		return nil, err
 	}
 
 	req, err := http.NewRequestWithContext(ctx, http.MethodPost, ccms.queryEndpoint, buf)
 	if err != nil {
+		log.Warn("Error while building request body")
 		return nil, err
 	}
 	if ccms.jwt != "" {
@@ -137,6 +141,7 @@ func (ccms *CCMetricStore) doRequest(
 
 	res, err := ccms.client.Do(req)
 	if err != nil {
+		log.Error("Error while performing request")
 		return nil, err
 	}
 
@@ -146,6 +151,7 @@ func (ccms *CCMetricStore) doRequest(
 
 	var resBody ApiQueryResponse
 	if err := json.NewDecoder(bufio.NewReader(res.Body)).Decode(&resBody); err != nil {
+		log.Warn("Error while decoding result body")
 		return nil, err
 	}
 
@@ -161,6 +167,7 @@ func (ccms *CCMetricStore) LoadData(
 	topology := archive.GetSubCluster(job.Cluster, job.SubCluster).Topology
 	queries, assignedScope, err := ccms.buildQueries(job, metrics, scopes)
 	if err != nil {
+		log.Warn("Error while building queries")
 		return nil, err
 	}
 
@@ -175,6 +182,7 @@ func (ccms *CCMetricStore) LoadData(
 
 	resBody, err := ccms.doRequest(ctx, &req)
 	if err != nil {
+		log.Error("Error while performing request")
 		return nil, err
 	}
 
@@ -202,6 +210,7 @@ func (ccms *CCMetricStore) LoadData(
 
 		for _, res := range row {
 			if res.Error != nil {
+				/* Build list for "partial errors", if any */
 				errors = append(errors, fmt.Sprintf("failed to fetch '%s' from host '%s': %s", query.Metric, query.Hostname, *res.Error))
 				continue
 			}
@@ -245,7 +254,8 @@ func (ccms *CCMetricStore) LoadData(
 	}
 
 	if len(errors) != 0 {
-		return jobData, fmt.Errorf("cc-metric-store: %s", strings.Join(errors, ", "))
+		/* Returns list for "partial errors" */
+		return jobData, fmt.Errorf("METRICDATA/CCMS > Errors: %s", strings.Join(errors, ", "))
 	}
 
 	return jobData, nil
@@ -272,8 +282,8 @@ func (ccms *CCMetricStore) buildQueries(
 		remoteName := ccms.toRemoteName(metric)
 		mc := archive.GetMetricConfig(job.Cluster, metric)
 		if mc == nil {
-			// return nil, fmt.Errorf("metric '%s' is not specified for cluster '%s'", metric, job.Cluster)
+			// return nil, fmt.Errorf("METRICDATA/CCMS > metric '%s' is not specified for cluster '%s'", metric, job.Cluster)
-			// log.Printf("metric '%s' is not specified for cluster '%s'", metric, job.Cluster)
+			log.Infof("metric '%s' is not specified for cluster '%s'", metric, job.Cluster)
 			continue
 		}
 
@@ -483,7 +493,7 @@ func (ccms *CCMetricStore) buildQueries(
 					continue
 				}
 
-				return nil, nil, fmt.Errorf("TODO: unhandled case: native-scope=%s, requested-scope=%s", nativeScope, requestedScope)
+				return nil, nil, fmt.Errorf("METRICDATA/CCMS > TODO: unhandled case: native-scope=%s, requested-scope=%s", nativeScope, requestedScope)
 			}
 		}
 	}
@@ -498,6 +508,7 @@ func (ccms *CCMetricStore) LoadStats(
 
 	queries, _, err := ccms.buildQueries(job, metrics, []schema.MetricScope{schema.MetricScopeNode})
 	if err != nil {
+		log.Warn("Error while building query")
 		return nil, err
 	}
 
@@ -512,6 +523,7 @@ func (ccms *CCMetricStore) LoadStats(
 
 	resBody, err := ccms.doRequest(ctx, &req)
 	if err != nil {
+		log.Error("Error while performing request")
 		return nil, err
 	}
 
@@ -521,7 +533,7 @@ func (ccms *CCMetricStore) LoadStats(
 		metric := ccms.toLocalName(query.Metric)
 		data := res[0]
 		if data.Error != nil {
-			return nil, fmt.Errorf("fetching %s for node %s failed: %s", metric, query.Hostname, *data.Error)
+			return nil, fmt.Errorf("METRICDATA/CCMS > fetching %s for node %s failed: %s", metric, query.Hostname, *data.Error)
 		}
 
 		metricdata, ok := stats[metric]
@@ -531,7 +543,7 @@ func (ccms *CCMetricStore) LoadStats(
 		}
 
 		if data.Avg.IsNaN() || data.Min.IsNaN() || data.Max.IsNaN() {
-			return nil, fmt.Errorf("fetching %s for node %s failed: %s", metric, query.Hostname, "avg/min/max is NaN")
+			return nil, fmt.Errorf("METRICDATA/CCMS > fetching %s for node %s failed: %s", metric, query.Hostname, "avg/min/max is NaN")
 		}
 
 		metricdata[query.Hostname] = schema.MetricStatistics{
@@ -577,6 +589,7 @@ func (ccms *CCMetricStore) LoadNodeData(
 
 	resBody, err := ccms.doRequest(ctx, &req)
 	if err != nil {
+		log.Error("Error while performing request")
 		return nil, err
 	}
 
@@ -593,11 +606,12 @@ func (ccms *CCMetricStore) LoadNodeData(
 		metric := ccms.toLocalName(query.Metric)
 		qdata := res[0]
 		if qdata.Error != nil {
+			/* Build list for "partial errors", if any */
 			errors = append(errors, fmt.Sprintf("fetching %s for node %s failed: %s", metric, query.Hostname, *qdata.Error))
 		}
 
 		if qdata.Avg.IsNaN() || qdata.Min.IsNaN() || qdata.Max.IsNaN() {
-			// return nil, fmt.Errorf("fetching %s for node %s failed: %s", metric, query.Hostname, "avg/min/max is NaN")
+			// return nil, fmt.Errorf("METRICDATA/CCMS > fetching %s for node %s failed: %s", metric, query.Hostname, "avg/min/max is NaN")
 			qdata.Avg, qdata.Min, qdata.Max = 0., 0., 0.
 		}
 
@@ -627,7 +641,8 @@ func (ccms *CCMetricStore) LoadNodeData(
 	}
 
 	if len(errors) != 0 {
-		return data, fmt.Errorf("cc-metric-store: %s", strings.Join(errors, ", "))
+		/* Returns list of "partial errors" */
+		return data, fmt.Errorf("METRICDATA/CCMS > Errors: %s", strings.Join(errors, ", "))
 	}
 
 	return data, nil

internal/metricdata/influxdb-v2.go

@@ -10,11 +10,11 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"log"
 	"strings"
 	"time"
 
 	"github.com/ClusterCockpit/cc-backend/pkg/archive"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	influxdb2 "github.com/influxdata/influxdb-client-go/v2"
 	influxdb2Api "github.com/influxdata/influxdb-client-go/v2/api"
@@ -37,6 +37,7 @@ type InfluxDBv2DataRepository struct {
 func (idb *InfluxDBv2DataRepository) Init(rawConfig json.RawMessage) error {
 	var config InfluxDBv2DataRepositoryConfig
 	if err := json.Unmarshal(rawConfig, &config); err != nil {
+		log.Warn("Error while unmarshaling raw json config")
 		return err
 	}
 
@@ -71,7 +72,7 @@ func (idb *InfluxDBv2DataRepository) LoadData(
 	for _, h := range job.Resources {
 		if h.HWThreads != nil || h.Accelerators != nil {
 			// TODO
-			return nil, errors.New("the InfluxDB metric data repository does not yet support HWThreads or Accelerators")
+			return nil, errors.New("METRICDATA/INFLUXV2 > the InfluxDB metric data repository does not yet support HWThreads or Accelerators")
 		}
 		hostsConds = append(hostsConds, fmt.Sprintf(`r["hostname"] == "%s"`, h.Hostname))
 	}
@@ -84,7 +85,7 @@ func (idb *InfluxDBv2DataRepository) LoadData(
 		switch scope {
 		case "node":
 			// Get Finest Granularity, Groupy By Measurement and Hostname (== Metric / Node), Calculate Mean for 60s windows
-			// log.Println("Note: Scope 'node' requested. ")
+			// log.Info("Scope 'node' requested. ")
 			query = fmt.Sprintf(`
 								from(bucket: "%s")
 								|> range(start: %s, stop: %s)
@@ -97,10 +98,10 @@ func (idb *InfluxDBv2DataRepository) LoadData(
 				idb.formatTime(job.StartTime), idb.formatTime(idb.epochToTime(job.StartTimeUnix+int64(job.Duration)+int64(1))),
 				measurementsCond, hostsCond)
 		case "socket":
-			log.Println("Note: Scope 'socket' requested, but not yet supported: Will return 'node' scope only. ")
+			log.Info("Scope 'socket' requested, but not yet supported: Will return 'node' scope only. ")
 			continue
 		case "core":
-			log.Println("Note: Scope 'core' requested, but not yet supported: Will return 'node' scope only. ")
+			log.Info(" Scope 'core' requested, but not yet supported: Will return 'node' scope only. ")
 			continue
 			// Get Finest Granularity only, Set NULL to 0.0
 			// query = fmt.Sprintf(`
@@ -114,13 +115,14 @@ func (idb *InfluxDBv2DataRepository) LoadData(
 			//  	idb.formatTime(job.StartTime), idb.formatTime(idb.epochToTime(job.StartTimeUnix + int64(job.Duration) + int64(1) )),
 			//  	measurementsCond, hostsCond)
 		default:
-			log.Println("Note: Unknown Scope requested: Will return 'node' scope. ")
+			log.Infof("Unknown scope '%s' requested: Will return 'node' scope.", scope)
 			continue
-			// return nil, errors.New("the InfluxDB metric data repository does not yet support other scopes than 'node'")
+			// return nil, errors.New("METRICDATA/INFLUXV2 > the InfluxDB metric data repository does not yet support other scopes than 'node'")
 		}
 
 		rows, err := idb.queryClient.Query(ctx, query)
 		if err != nil {
+			log.Error("Error while performing query")
 			return nil, err
 		}
 
@@ -192,6 +194,7 @@ func (idb *InfluxDBv2DataRepository) LoadData(
 			// 		hostSeries.Data = append(hostSeries.Data, schema.Float(val))
 			// }
 		default:
+			log.Infof("Unknown scope '%s' requested: Will return 'node' scope.", scope)
 			continue
 			// return nil, errors.New("the InfluxDB metric data repository does not yet support other scopes than 'node, core'")
 		}
@@ -202,21 +205,22 @@ func (idb *InfluxDBv2DataRepository) LoadData(
 	// Get Stats
 	stats, err := idb.LoadStats(job, metrics, ctx)
 	if err != nil {
+		log.Warn("Error while loading statistics")
 		return nil, err
 	}
 
 	for _, scope := range scopes {
 		if scope == "node" { // No 'socket/core' support yet
 			for metric, nodes := range stats {
-				// log.Println(fmt.Sprintf("<< Add Stats for : Field %s >>", metric))
+				// log.Debugf("<< Add Stats for : Field %s >>", metric)
 				for node, stats := range nodes {
-					// log.Println(fmt.Sprintf("<< Add Stats for : Host %s : Min %.2f, Max %.2f, Avg %.2f >>", node, stats.Min, stats.Max, stats.Avg ))
+					// log.Debugf("<< Add Stats for : Host %s : Min %.2f, Max %.2f, Avg %.2f >>", node, stats.Min, stats.Max, stats.Avg )
 					for index, _ := range jobData[metric][scope].Series {
-						// log.Println(fmt.Sprintf("<< Try to add Stats to Series in Position %d >>", index))
+						// log.Debugf("<< Try to add Stats to Series in Position %d >>", index)
 						if jobData[metric][scope].Series[index].Hostname == node {
-							// log.Println(fmt.Sprintf("<< Match for Series in Position %d : Host %s >>", index, jobData[metric][scope].Series[index].Hostname))
+							// log.Debugf("<< Match for Series in Position %d : Host %s >>", index, jobData[metric][scope].Series[index].Hostname)
 							jobData[metric][scope].Series[index].Statistics = &schema.MetricStatistics{Avg: stats.Avg, Min: stats.Min, Max: stats.Max}
-							// log.Println(fmt.Sprintf("<< Result Inner: Min %.2f, Max %.2f, Avg %.2f >>", jobData[metric][scope].Series[index].Statistics.Min, jobData[metric][scope].Series[index].Statistics.Max, jobData[metric][scope].Series[index].Statistics.Avg))
+							// log.Debugf("<< Result Inner: Min %.2f, Max %.2f, Avg %.2f >>", jobData[metric][scope].Series[index].Statistics.Min, jobData[metric][scope].Series[index].Statistics.Max, jobData[metric][scope].Series[index].Statistics.Avg)
 						}
 					}
 				}
@@ -228,9 +232,9 @@ func (idb *InfluxDBv2DataRepository) LoadData(
 	// for _, scope := range scopes {
 	// 		for _, met := range metrics {
 	// 		   for _, series := range jobData[met][scope].Series {
-	// 		   log.Println(fmt.Sprintf("<< Result: %d data points for metric %s on %s with scope %s, Stats: Min %.2f, Max %.2f, Avg %.2f >>",
+	// 		   log.Debugf("<< Result: %d data points for metric %s on %s with scope %s, Stats: Min %.2f, Max %.2f, Avg %.2f >>",
 	// 				 	len(series.Data), met, series.Hostname, scope,
-	// 					series.Statistics.Min, series.Statistics.Max, series.Statistics.Avg))
+	// 					series.Statistics.Min, series.Statistics.Max, series.Statistics.Avg)
 	// 		   }
 	// 		}
 	// }
@@ -249,7 +253,7 @@ func (idb *InfluxDBv2DataRepository) LoadStats(
 	for _, h := range job.Resources {
 		if h.HWThreads != nil || h.Accelerators != nil {
 			// TODO
-			return nil, errors.New("the InfluxDB metric data repository does not yet support HWThreads or Accelerators")
+			return nil, errors.New("METRICDATA/INFLUXV2 > the InfluxDB metric data repository does not yet support HWThreads or Accelerators")
 		}
 		hostsConds = append(hostsConds, fmt.Sprintf(`r["hostname"] == "%s"`, h.Hostname))
 	}
@@ -258,7 +262,7 @@ func (idb *InfluxDBv2DataRepository) LoadStats(
 	// lenMet := len(metrics)
 
 	for _, metric := range metrics {
-		// log.Println(fmt.Sprintf("<< You are here: %s (Index %d of %d metrics)", metric, index, lenMet))
+		// log.Debugf("<< You are here: %s (Index %d of %d metrics)", metric, index, lenMet)
 
 		query := fmt.Sprintf(`
 				  data = from(bucket: "%s")
@@ -275,6 +279,7 @@ func (idb *InfluxDBv2DataRepository) LoadStats(
 
 		rows, err := idb.queryClient.Query(ctx, query)
 		if err != nil {
+			log.Error("Error while performing query")
 			return nil, err
 		}
 
@@ -285,17 +290,17 @@ func (idb *InfluxDBv2DataRepository) LoadStats(
 
 			avg, avgok := row.ValueByKey("avg").(float64)
 			if !avgok {
-				// log.Println(fmt.Sprintf(">> Assertion error for metric %s, statistic AVG. Expected 'float64', got %v", metric, avg))
+				// log.Debugf(">> Assertion error for metric %s, statistic AVG. Expected 'float64', got %v", metric, avg)
 				avg = 0.0
 			}
 			min, minok := row.ValueByKey("min").(float64)
 			if !minok {
-				// log.Println(fmt.Sprintf(">> Assertion error for metric %s, statistic MIN. Expected 'float64', got %v", metric, min))
+				// log.Debugf(">> Assertion error for metric %s, statistic MIN. Expected 'float64', got %v", metric, min)
 				min = 0.0
 			}
 			max, maxok := row.ValueByKey("max").(float64)
 			if !maxok {
-				// log.Println(fmt.Sprintf(">> Assertion error for metric %s, statistic MAX. Expected 'float64', got %v", metric, max))
+				// log.Debugf(">> Assertion error for metric %s, statistic MAX. Expected 'float64', got %v", metric, max)
 				max = 0.0
 			}
 
@@ -319,7 +324,7 @@ func (idb *InfluxDBv2DataRepository) LoadNodeData(
 	ctx context.Context) (map[string]map[string][]*schema.JobMetric, error) {
 
 	// TODO : Implement to be used in Analysis- und System/Node-View
-	log.Println(fmt.Sprintf("LoadNodeData unimplemented for InfluxDBv2DataRepository, Args: cluster %s, metrics %v, nodes %v, scopes %v", cluster, metrics, nodes, scopes))
+	log.Infof("LoadNodeData unimplemented for InfluxDBv2DataRepository, Args: cluster %s, metrics %v, nodes %v, scopes %v", cluster, metrics, nodes, scopes)
 
-	return nil, errors.New("unimplemented for InfluxDBv2DataRepository")
+	return nil, errors.New("METRICDATA/INFLUXV2 > unimplemented for InfluxDBv2DataRepository")
 }

internal/metricdata/metricdata.go

@@ -46,6 +46,7 @@ func Init(disableArchive bool) error {
 				Kind string `json:"kind"`
 			}
 			if err := json.Unmarshal(cluster.MetricDataRepository, &kind); err != nil {
+				log.Warn("Error while unmarshaling raw json MetricDataRepository")
 				return err
 			}
 
@@ -60,10 +61,11 @@ func Init(disableArchive bool) error {
 			case "test":
 				mdr = &TestMetricDataRepository{}
 			default:
-				return fmt.Errorf("unkown metric data repository '%s' for cluster '%s'", kind.Kind, cluster.Name)
+				return fmt.Errorf("METRICDATA/METRICDATA > Unknown MetricDataRepository %v for cluster %v", kind.Kind, cluster.Name)
 			}
 
 			if err := mdr.Init(cluster.MetricDataRepository); err != nil {
+				log.Errorf("Error initializing MetricDataRepository %v for cluster %v", kind.Kind, cluster.Name)
 				return err
 			}
 			metricDataRepos[cluster.Name] = mdr
@@ -90,7 +92,7 @@ func LoadData(job *schema.Job,
 			repo, ok := metricDataRepos[job.Cluster]
 
 			if !ok {
-				return fmt.Errorf("no metric data repository configured for '%s'", job.Cluster), 0, 0
+				return fmt.Errorf("METRICDATA/METRICDATA > no metric data repository configured for '%s'", job.Cluster), 0, 0
 			}
 
 			if scopes == nil {
@@ -107,8 +109,9 @@ func LoadData(job *schema.Job,
 			jd, err = repo.LoadData(job, metrics, scopes, ctx)
 			if err != nil {
 				if len(jd) != 0 {
-					log.Errorf("partial error: %s", err.Error())
+					log.Warnf("partial error: %s", err.Error())
 				} else {
+					log.Error("Error while loading job data from metric repository")
 					return err, 0, 0
 				}
 			}
@@ -116,6 +119,7 @@ func LoadData(job *schema.Job,
 		} else {
 			jd, err = archive.GetHandle().LoadJobData(job)
 			if err != nil {
+				log.Error("Error while loading job data from archive")
 				return err, 0, 0
 			}
 
@@ -163,6 +167,7 @@ func LoadData(job *schema.Job,
 	})
 
 	if err, ok := data.(error); ok {
+		log.Error("Error in returned dataset")
 		return nil, err
 	}
 
@@ -182,11 +187,12 @@ func LoadAverages(
 
 	repo, ok := metricDataRepos[job.Cluster]
 	if !ok {
-		return fmt.Errorf("no metric data repository configured for '%s'", job.Cluster)
+		return fmt.Errorf("METRICDATA/METRICDATA > no metric data repository configured for '%s'", job.Cluster)
 	}
 
 	stats, err := repo.LoadStats(job, metrics, ctx)
 	if err != nil {
+		log.Errorf("Error while loading statistics for job %v (User %v, Project %v)", job.JobID, job.User, job.Project)
 		return err
 	}
 
@@ -217,7 +223,7 @@ func LoadNodeData(
 
 	repo, ok := metricDataRepos[cluster]
 	if !ok {
-		return nil, fmt.Errorf("no metric data repository configured for '%s'", cluster)
+		return nil, fmt.Errorf("METRICDATA/METRICDATA > no metric data repository configured for '%s'", cluster)
 	}
 
 	if metrics == nil {
@@ -229,14 +235,15 @@ func LoadNodeData(
 	data, err := repo.LoadNodeData(cluster, metrics, nodes, scopes, from, to, ctx)
 	if err != nil {
 		if len(data) != 0 {
-			log.Errorf("partial error: %s", err.Error())
+			log.Warnf("partial error: %s", err.Error())
 		} else {
+			log.Error("Error while loading node data from metric repository")
 			return nil, err
 		}
 	}
 
 	if data == nil {
-		return nil, fmt.Errorf("the metric data repository for '%s' does not support this query", cluster)
+		return nil, fmt.Errorf("METRICDATA/METRICDATA > the metric data repository for '%s' does not support this query", cluster)
 	}
 
 	return data, nil
@@ -303,6 +310,7 @@ func ArchiveJob(job *schema.Job, ctx context.Context) (*schema.JobMeta, error) {
 
 	jobData, err := LoadData(job, allMetrics, scopes, ctx)
 	if err != nil {
+		log.Error("Error wile loading job data for archiving")
 		return nil, err
 	}
 

internal/metricdata/prometheus.go

@@ -5,24 +5,24 @@
 package metricdata
 
 import (
-	"os"
+	"bytes"
-	"errors"
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
-	"strings"
-	"text/template"
-	"bytes"
-	"net/http"
-	"time"
 	"math"
-	"sort"
+	"net/http"
+	"os"
 	"regexp"
+	"sort"
+	"strings"
 	"sync"
+	"text/template"
+	"time"
 
 	"github.com/ClusterCockpit/cc-backend/pkg/archive"
-	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	promapi "github.com/prometheus/client_golang/api"
 	promv1 "github.com/prometheus/client_golang/api/prometheus/v1"
 	promcfg "github.com/prometheus/common/config"
@@ -60,7 +60,6 @@ func contains(s []schema.MetricScope, str schema.MetricScope) bool {
 	return false
 }
 
-
 func MinMaxMean(data []schema.Float) (float64, float64, float64) {
 	if len(data) == 0 {
 		return 0.0, 0.0, 0.0
@@ -75,13 +74,16 @@ func MinMaxMean(data []schema.Float) (float64, float64, float64) {
 		}
 		sum += float64(val)
 		n += 1
-		if float64(val) > max {max = float64(val)}
+		if float64(val) > max {
-		if float64(val) < min {min = float64(val)}
+			max = float64(val)
+		}
+		if float64(val) < min {
+			min = float64(val)
+		}
 	}
 	return min, max, sum / n
 }
 
-
 // Rewritten from
 // https://github.com/ermanh/trieregex/blob/master/trieregex/trieregex.py
 func nodeRegex(nodes []string) string {
@@ -90,7 +92,9 @@ func nodeRegex(nodes []string) string {
 	for _, node := range nodes {
 		_trie := root
 		for _, c := range node {
-      if _, ok := _trie[c]; !ok {_trie[c] = Trie{}}
+			if _, ok := _trie[c]; !ok {
+				_trie[c] = Trie{}
+			}
 			_trie = _trie[c]
 		}
 		_trie['*'] = Trie{}
@@ -106,7 +110,9 @@ func nodeRegex(nodes []string) string {
 		}
 		if len(trie) == 1 {
 			for key, _trie := range trie {
-        if key == '*' { return "" }
+				if key == '*' {
+					return ""
+				}
 				return regexp.QuoteMeta(string(key)) + trieRegex(_trie, false)
 			}
 		} else {
@@ -139,7 +145,9 @@ func nodeRegex(nodes []string) string {
 			} else {
 				result = "(?:" + strings.Join(sequences, "|") + ")"
 			}
-      if _, ok := trie['*']; ok { result += "?"}
+			if _, ok := trie['*']; ok {
+				result += "?"
+			}
 			return result
 		}
 		return ""
@@ -147,13 +155,11 @@ func nodeRegex(nodes []string) string {
 	return trieRegex(root, true)
 }
 
-
-
-
 func (pdb *PrometheusDataRepository) Init(rawConfig json.RawMessage) error {
 	var config PrometheusDataRepositoryConfig
 	// parse config
 	if err := json.Unmarshal(rawConfig, &config); err != nil {
+		log.Warn("Error while unmarshaling raw json config")
 		return err
 	}
 	// support basic authentication
@@ -163,7 +169,7 @@ func (pdb *PrometheusDataRepository) Init(rawConfig json.RawMessage) error {
 		rt = promcfg.NewBasicAuthRoundTripper(config.Username, prom_pw, "", promapi.DefaultRoundTripper)
 	} else {
 		if config.Username != "" {
-			return errors.New("Prometheus username provided, but PROMETHEUS_PASSWORD not set.")
+			return errors.New("METRICDATA/PROMETHEUS > Prometheus username provided, but PROMETHEUS_PASSWORD not set.")
 		}
 	}
 	// init client
@@ -172,6 +178,7 @@ func (pdb *PrometheusDataRepository) Init(rawConfig json.RawMessage) error {
 		RoundTripper: rt,
 	})
 	if err != nil {
+		log.Error("Error while initializing new prometheus client")
 		return err
 	}
 	// init query client
@@ -186,15 +193,12 @@ func (pdb *PrometheusDataRepository) Init(rawConfig json.RawMessage) error {
 		if err == nil {
 			log.Debugf("Added PromQL template for %s: %s", metric, templ)
 		} else {
-			log.Errorf("Failed to parse PromQL template %s for metric %s", templ, metric)
+			log.Warnf("Failed to parse PromQL template %s for metric %s", templ, metric)
 		}
 	}
 	return nil
 }
 
-
-
-
 // TODO: respect scope argument
 func (pdb *PrometheusDataRepository) FormatQuery(
 	metric string,
@@ -213,26 +217,23 @@ func (pdb *PrometheusDataRepository) FormatQuery(
 	if templ, ok := pdb.templates[metric]; ok {
 		err := templ.Execute(buf, args)
 		if err != nil {
-			return "", errors.New(fmt.Sprintf("Error compiling template %v", templ))
+			return "", errors.New(fmt.Sprintf("METRICDATA/PROMETHEUS > Error compiling template %v", templ))
 		} else {
 			query := buf.String()
-			log.Debugf(fmt.Sprintf("PromQL: %s", query))
+			log.Debugf("PromQL: %s", query)
 			return query, nil
 		}
 	} else {
-		return "", errors.New(fmt.Sprintf("No PromQL for metric %s configured.", metric))
+		return "", errors.New(fmt.Sprintf("METRICDATA/PROMETHEUS > No PromQL for metric %s configured.", metric))
 	}
 }
 
-
-
-
 // Convert PromAPI row to CC schema.Series
 func (pdb *PrometheusDataRepository) RowToSeries(
 	from time.Time,
 	step int64,
 	steps int64,
-		row *promm.SampleStream) (schema.Series) {
+	row *promm.SampleStream) schema.Series {
 	ts := from.Unix()
 	hostname := strings.TrimSuffix(string(row.Metric["exported_instance"]), pdb.suffix)
 	// init array of expected length with NaN
@@ -258,9 +259,6 @@ func (pdb *PrometheusDataRepository) RowToSeries(
 	}
 }
 
-
-
-
 func (pdb *PrometheusDataRepository) LoadData(
 	job *schema.Job,
 	metrics []string,
@@ -283,19 +281,21 @@ func (pdb *PrometheusDataRepository) LoadData(
 
 	for _, scope := range scopes {
 		if scope != schema.MetricScopeNode {
-			logOnce.Do(func(){log.Infof(fmt.Sprintf("Note: Scope '%s' requested, but not yet supported: Will return 'node' scope only.", scope))})
+			logOnce.Do(func() {
+				log.Infof("Scope '%s' requested, but not yet supported: Will return 'node' scope only.", scope)
+			})
 			continue
 		}
 
 		for _, metric := range metrics {
 			metricConfig := archive.GetMetricConfig(job.Cluster, metric)
 			if metricConfig == nil {
-				log.Errorf(fmt.Sprintf("Error in LoadData: Metric %s for cluster %s not configured",
+				log.Warnf("Error in LoadData: Metric %s for cluster %s not configured", metric, job.Cluster)
-					metric, job.Cluster))
+				return nil, errors.New("Prometheus config error")
-				return nil, errors.New("Prometheus querry error")
 			}
 			query, err := pdb.FormatQuery(metric, scope, nodes, job.Cluster)
 			if err != nil {
+				log.Warn("Error while formatting prometheus query")
 				return nil, err
 			}
 
@@ -308,11 +308,11 @@ func (pdb *PrometheusDataRepository) LoadData(
 			result, warnings, err := pdb.queryClient.QueryRange(ctx, query, r)
 
 			if err != nil {
-				log.Errorf(fmt.Sprintf("Prometheus query error in LoadData: %v\nQuery: %s", err, query))
+				log.Errorf("Prometheus query error in LoadData: %v\nQuery: %s", err, query)
-				return nil, errors.New("Prometheus querry error")
+				return nil, errors.New("Prometheus query error")
 			}
 			if len(warnings) > 0 {
-				log.Warnf(fmt.Sprintf("Warnings: %v\n", warnings))
+				log.Warnf("Warnings: %v\n", warnings)
 			}
 
 			// init data structures
@@ -345,9 +345,6 @@ func (pdb *PrometheusDataRepository) LoadData(
 	return jobData, nil
 }
 
-
-
-
 // TODO change implementation to precomputed/cached stats
 func (pdb *PrometheusDataRepository) LoadStats(
 	job *schema.Job,
@@ -359,6 +356,7 @@ func (pdb *PrometheusDataRepository) LoadStats(
 
 	data, err := pdb.LoadData(job, metrics, []schema.MetricScope{schema.MetricScopeNode}, ctx)
 	if err != nil {
+		log.Warn("Error while loading job for stats")
 		return nil, err
 	}
 	for metric, metricData := range data {
@@ -371,9 +369,6 @@ func (pdb *PrometheusDataRepository) LoadStats(
 	return stats, nil
 }
 
-
-
-
 func (pdb *PrometheusDataRepository) LoadNodeData(
 	cluster string,
 	metrics, nodes []string,
@@ -390,18 +385,20 @@ func (pdb *PrometheusDataRepository) LoadNodeData(
 	}
 	for _, scope := range scopes {
 		if scope != schema.MetricScopeNode {
-			logOnce.Do(func(){log.Infof(fmt.Sprintf("Note: Scope '%s' requested, but not yet supported: Will return 'node' scope only.", scope))})
+			logOnce.Do(func() {
+				log.Infof("Note: Scope '%s' requested, but not yet supported: Will return 'node' scope only.", scope)
+			})
 			continue
 		}
 		for _, metric := range metrics {
 			metricConfig := archive.GetMetricConfig(cluster, metric)
 			if metricConfig == nil {
-				log.Errorf(fmt.Sprintf("Error in LoadNodeData: Metric %s for cluster %s not configured",
+				log.Warnf("Error in LoadNodeData: Metric %s for cluster %s not configured", metric, cluster)
-					metric, cluster))
+				return nil, errors.New("Prometheus config error")
-				return nil, errors.New("Prometheus querry error")
 			}
 			query, err := pdb.FormatQuery(metric, scope, nodes, cluster)
 			if err != nil {
+				log.Warn("Error while formatting prometheus query")
 				return nil, err
 			}
 
@@ -414,11 +411,11 @@ func (pdb *PrometheusDataRepository) LoadNodeData(
 			result, warnings, err := pdb.queryClient.QueryRange(ctx, query, r)
 
 			if err != nil {
-				log.Errorf(fmt.Sprintf("Prometheus query error in LoadNodeData: %v\n", err))
+				log.Errorf("Prometheus query error in LoadNodeData: %v\n", err)
-				return nil, errors.New("Prometheus querry error")
+				return nil, errors.New("Prometheus query error")
 			}
 			if len(warnings) > 0 {
-				log.Warnf(fmt.Sprintf("Warnings: %v\n", warnings))
+				log.Warnf("Warnings: %v\n", warnings)
 			}
 
 			step := int64(metricConfig.Timestep)
@@ -444,6 +441,6 @@ func (pdb *PrometheusDataRepository) LoadNodeData(
 		}
 	}
 	t1 := time.Since(t0)
-	log.Debugf(fmt.Sprintf("LoadNodeData of %v nodes took %s", len(data), t1))
+	log.Debugf("LoadNodeData of %v nodes took %s", len(data), t1)
 	return data, nil
 }

internal/repository/dbConnection.go

@@ -5,12 +5,15 @@
 package repository
 
 import (
+	"database/sql"
 	"fmt"
 	"log"
 	"sync"
 	"time"
 
 	"github.com/jmoiron/sqlx"
+	"github.com/mattn/go-sqlite3"
+	"github.com/qustavo/sqlhooks/v2"
 )
 
 var (
@@ -20,6 +23,7 @@ var (
 
 type DBConnection struct {
 	DB     *sqlx.DB
+	Driver string
 }
 
 func Connect(driver string, db string) {
@@ -28,7 +32,9 @@ func Connect(driver string, db string) {
 
 	dbConnOnce.Do(func() {
 		if driver == "sqlite3" {
-			dbHandle, err = sqlx.Open("sqlite3", fmt.Sprintf("%s?_foreign_keys=on", db))
+			sql.Register("sqlite3WithHooks", sqlhooks.Wrap(&sqlite3.SQLiteDriver{}, &Hooks{}))
+			dbHandle, err = sqlx.Open("sqlite3WithHooks", fmt.Sprintf("%s?_foreign_keys=on", db))
+			// dbHandle, err = sqlx.Open("sqlite3", fmt.Sprintf("%s?_foreign_keys=on", db))
 			if err != nil {
 				log.Fatal(err)
 			}
@@ -39,7 +45,7 @@ func Connect(driver string, db string) {
 		} else if driver == "mysql" {
 			dbHandle, err = sqlx.Open("mysql", fmt.Sprintf("%s?multiStatements=true", db))
 			if err != nil {
-				log.Fatal(err)
+				log.Fatalf("sqlx.Open() error: %v", err)
 			}
 
 			dbHandle.SetConnMaxLifetime(time.Minute * 3)
@@ -49,7 +55,8 @@ func Connect(driver string, db string) {
 			log.Fatalf("unsupported database driver: %s", driver)
 		}
 
-		dbConnInstance = &DBConnection{DB: dbHandle}
+		dbConnInstance = &DBConnection{DB: dbHandle, Driver: driver}
+		checkDBVersion(driver, dbHandle.DB)
 	})
 }
 

internal/repository/hooks.go

@@ -0,0 +1,28 @@
+// Copyright (C) 2022 NHR@FAU, University Erlangen-Nuremberg.
+// All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+package repository
+
+import (
+	"context"
+	"time"
+
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+)
+
+// Hooks satisfies the sqlhook.Hooks interface
+type Hooks struct{}
+
+// Before hook will print the query with it's args and return the context with the timestamp
+func (h *Hooks) Before(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	log.Infof("SQL query %s %q", query, args)
+	return context.WithValue(ctx, "begin", time.Now()), nil
+}
+
+// After hook will get the timestamp registered on the Before hook and print the elapsed time
+func (h *Hooks) After(ctx context.Context, query string, args ...interface{}) (context.Context, error) {
+	begin := ctx.Value("begin").(time.Time)
+	log.Infof("Took: %s\n", time.Since(begin))
+	return ctx, nil
+}

internal/repository/init.go

@@ -19,67 +19,6 @@ import (
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
-// `AUTO_INCREMENT` is in a comment because of this hack:
-// https://stackoverflow.com/a/41028314 (sqlite creates unique ids automatically)
-const JobsDBSchema string = `
-	DROP TABLE IF EXISTS jobtag;
-	DROP TABLE IF EXISTS job;
-	DROP TABLE IF EXISTS tag;
-
-	CREATE TABLE job (
-		id                INTEGER PRIMARY KEY /*!40101 AUTO_INCREMENT */,
-		job_id            BIGINT NOT NULL,
-		cluster           VARCHAR(255) NOT NULL,
-		subcluster        VARCHAR(255) NOT NULL,
-		start_time        BIGINT NOT NULL, -- Unix timestamp
-
-		user              VARCHAR(255) NOT NULL,
-		project           VARCHAR(255) NOT NULL,
-		` + "`partition`" + ` VARCHAR(255) NOT NULL, -- partition is a keyword in mysql -.-
-		array_job_id      BIGINT NOT NULL,
-		duration          INT NOT NULL DEFAULT 0,
-		walltime          INT NOT NULL DEFAULT 0,
-		job_state         VARCHAR(255) NOT NULL CHECK(job_state IN ('running', 'completed', 'failed', 'cancelled', 'stopped', 'timeout', 'preempted', 'out_of_memory')),
-		meta_data         TEXT,          -- JSON
-		resources         TEXT NOT NULL, -- JSON
-
-		num_nodes         INT NOT NULL,
-		num_hwthreads     INT NOT NULL,
-		num_acc           INT NOT NULL,
-		smt               TINYINT NOT NULL DEFAULT 1 CHECK(smt               IN (0, 1   )),
-		exclusive         TINYINT NOT NULL DEFAULT 1 CHECK(exclusive         IN (0, 1, 2)),
-		monitoring_status TINYINT NOT NULL DEFAULT 1 CHECK(monitoring_status IN (0, 1, 2, 3)),
-
-		mem_used_max        REAL NOT NULL DEFAULT 0.0,
-		flops_any_avg       REAL NOT NULL DEFAULT 0.0,
-		mem_bw_avg          REAL NOT NULL DEFAULT 0.0,
-		load_avg            REAL NOT NULL DEFAULT 0.0,
-		net_bw_avg          REAL NOT NULL DEFAULT 0.0,
-		net_data_vol_total  REAL NOT NULL DEFAULT 0.0,
-		file_bw_avg         REAL NOT NULL DEFAULT 0.0,
-		file_data_vol_total REAL NOT NULL DEFAULT 0.0);
-
-	CREATE TABLE tag (
-		id       INTEGER PRIMARY KEY,
-		tag_type VARCHAR(255) NOT NULL,
-		tag_name VARCHAR(255) NOT NULL,
-		CONSTRAINT be_unique UNIQUE (tag_type, tag_name));
-
-	CREATE TABLE jobtag (
-		job_id INTEGER,
-		tag_id INTEGER,
-		PRIMARY KEY (job_id, tag_id),
-		FOREIGN KEY (job_id) REFERENCES job (id) ON DELETE CASCADE,
-		FOREIGN KEY (tag_id) REFERENCES tag (id) ON DELETE CASCADE);
-`
-
-// Indexes are created after the job-archive is traversed for faster inserts.
-const JobsDbIndexes string = `
-	CREATE INDEX job_by_user      ON job (user);
-	CREATE INDEX job_by_starttime ON job (start_time);
-	CREATE INDEX job_by_job_id    ON job (job_id);
-	CREATE INDEX job_by_state     ON job (job_state);
-`
 const NamedJobInsert string = `INSERT INTO job (
 	job_id, user, project, cluster, subcluster, ` + "`partition`" + `, array_job_id, num_nodes, num_hwthreads, num_acc,
 	exclusive, monitoring_status, smt, job_state, start_time, duration, walltime, resources, meta_data,
@@ -95,40 +34,44 @@ func HandleImportFlag(flag string) error {
 	for _, pair := range strings.Split(flag, ",") {
 		files := strings.Split(pair, ":")
 		if len(files) != 2 {
-			return fmt.Errorf("invalid import flag format")
+			return fmt.Errorf("REPOSITORY/INIT > invalid import flag format")
 		}
 
 		raw, err := os.ReadFile(files[0])
 		if err != nil {
+			log.Warn("Error while reading metadata file for import")
 			return err
 		}
 
 		if config.Keys.Validate {
 			if err := schema.Validate(schema.Meta, bytes.NewReader(raw)); err != nil {
-				return fmt.Errorf("validate job meta: %v", err)
+				return fmt.Errorf("REPOSITORY/INIT > validate job meta: %v", err)
 			}
 		}
 		dec := json.NewDecoder(bytes.NewReader(raw))
 		dec.DisallowUnknownFields()
 		jobMeta := schema.JobMeta{BaseJob: schema.JobDefaults}
 		if err := dec.Decode(&jobMeta); err != nil {
+			log.Warn("Error while decoding raw json metadata for import")
 			return err
 		}
 
 		raw, err = os.ReadFile(files[1])
 		if err != nil {
+			log.Warn("Error while reading jobdata file for import")
 			return err
 		}
 
 		if config.Keys.Validate {
 			if err := schema.Validate(schema.Data, bytes.NewReader(raw)); err != nil {
-				return fmt.Errorf("validate job data: %v", err)
+				return fmt.Errorf("REPOSITORY/INIT > validate job data: %v", err)
 			}
 		}
 		dec = json.NewDecoder(bytes.NewReader(raw))
 		dec.DisallowUnknownFields()
 		jobData := schema.JobData{}
 		if err := dec.Decode(&jobData); err != nil {
+			log.Warn("Error while decoding raw json jobdata for import")
 			return err
 		}
 
@@ -136,10 +79,11 @@ func HandleImportFlag(flag string) error {
 		jobMeta.MonitoringStatus = schema.MonitoringStatusArchivingSuccessful
 		if job, err := GetJobRepository().Find(&jobMeta.JobID, &jobMeta.Cluster, &jobMeta.StartTime); err != sql.ErrNoRows {
 			if err != nil {
+				log.Warn("Error while finding job in jobRepository")
 				return err
 			}
 
-			return fmt.Errorf("a job with that jobId, cluster and startTime does already exist (dbid: %d)", job.ID)
+			return fmt.Errorf("REPOSITORY/INIT > a job with that jobId, cluster and startTime does already exist (dbid: %d)", job.ID)
 		}
 
 		job := schema.Job{
@@ -155,38 +99,45 @@ func HandleImportFlag(flag string) error {
 		job.FileBwAvg = loadJobStat(&jobMeta, "file_bw")
 		job.RawResources, err = json.Marshal(job.Resources)
 		if err != nil {
+			log.Warn("Error while marshaling job resources")
 			return err
 		}
 		job.RawMetaData, err = json.Marshal(job.MetaData)
 		if err != nil {
+			log.Warn("Error while marshaling job metadata")
 			return err
 		}
 
 		if err := SanityChecks(&job.BaseJob); err != nil {
+			log.Warn("BaseJob SanityChecks failed")
 			return err
 		}
 
 		if err := archive.GetHandle().ImportJob(&jobMeta, &jobData); err != nil {
+			log.Error("Error while importing job")
 			return err
 		}
 
 		res, err := GetConnection().DB.NamedExec(NamedJobInsert, job)
 		if err != nil {
+			log.Warn("Error while NamedJobInsert")
 			return err
 		}
 
 		id, err := res.LastInsertId()
 		if err != nil {
+			log.Warn("Error while getting last insert ID")
 			return err
 		}
 
 		for _, tag := range job.Tags {
 			if _, err := GetJobRepository().AddTagOrCreate(id, tag.Type, tag.Name); err != nil {
+				log.Error("Error while adding or creating tag")
 				return err
 			}
 		}
 
-		log.Infof("Successfully imported a new job (jobId: %d, cluster: %s, dbid: %d)", job.JobID, job.Cluster, id)
+		log.Infof("successfully imported a new job (jobId: %d, cluster: %s, dbid: %d)", job.JobID, job.Cluster, id)
 	}
 	return nil
 }
@@ -198,21 +149,17 @@ func InitDB() error {
 	starttime := time.Now()
 	log.Print("Building job table...")
 
-	// Basic database structure:
-	_, err := db.DB.Exec(JobsDBSchema)
-	if err != nil {
-		return err
-	}
-
 	// Inserts are bundled into transactions because in sqlite,
 	// that speeds up inserts A LOT.
 	tx, err := db.DB.Beginx()
 	if err != nil {
+		log.Warn("Error while bundling transactions")
 		return err
 	}
 
 	stmt, err := tx.PrepareNamed(NamedJobInsert)
 	if err != nil {
+		log.Warn("Error while preparing namedJobInsert")
 		return err
 	}
 	tags := make(map[string]int64)
@@ -232,12 +179,14 @@ func InitDB() error {
 		if i%10 == 0 {
 			if tx != nil {
 				if err := tx.Commit(); err != nil {
+					log.Warn("Error while committing transactions for jobMeta")
 					return err
 				}
 			}
 
 			tx, err = db.DB.Beginx()
 			if err != nil {
+				log.Warn("Error while bundling transactions for jobMeta")
 				return err
 			}
 
@@ -260,34 +209,34 @@ func InitDB() error {
 
 		job.RawResources, err = json.Marshal(job.Resources)
 		if err != nil {
-			log.Errorf("repository initDB()- %v", err)
+			log.Errorf("repository initDB(): %v", err)
 			errorOccured++
 			continue
 		}
 
 		job.RawMetaData, err = json.Marshal(job.MetaData)
 		if err != nil {
-			log.Errorf("repository initDB()-  %v", err)
+			log.Errorf("repository initDB(): %v", err)
 			errorOccured++
 			continue
 		}
 
 		if err := SanityChecks(&job.BaseJob); err != nil {
-			log.Errorf("repository initDB()- %v", err)
+			log.Errorf("repository initDB(): %v", err)
 			errorOccured++
 			continue
 		}
 
 		res, err := stmt.Exec(job)
 		if err != nil {
-			log.Errorf("repository initDB()- %v", err)
+			log.Errorf("repository initDB(): %v", err)
 			errorOccured++
 			continue
 		}
 
 		id, err := res.LastInsertId()
 		if err != nil {
-			log.Errorf("repository initDB()- %v", err)
+			log.Errorf("repository initDB(): %v", err)
 			errorOccured++
 			continue
 		}
@@ -298,16 +247,19 @@ func InitDB() error {
 			if !ok {
 				res, err := tx.Exec(`INSERT INTO tag (tag_name, tag_type) VALUES (?, ?)`, tag.Name, tag.Type)
 				if err != nil {
+					log.Errorf("Error while inserting tag into tag table: %v (Type %v)", tag.Name, tag.Type)
 					return err
 				}
 				tagId, err = res.LastInsertId()
 				if err != nil {
+					log.Warn("Error while getting last insert ID")
 					return err
 				}
 				tags[tagstr] = tagId
 			}
 
 			if _, err := tx.Exec(`INSERT INTO jobtag (job_id, tag_id) VALUES (?, ?)`, id, tagId); err != nil {
+				log.Errorf("Error while inserting jobtag into jobtag table: %v (TagID %v)", id, tagId)
 				return err
 			}
 		}
@@ -318,16 +270,11 @@ func InitDB() error {
 	}
 
 	if errorOccured > 0 {
-		log.Errorf("Error in import of %d jobs!", errorOccured)
+		log.Warnf("Error in import of %d jobs!", errorOccured)
 	}
 
 	if err := tx.Commit(); err != nil {
-		return err
+		log.Warn("Error while committing SQL transactions")
-	}
-
-	// Create indexes after inserts so that they do not
-	// need to be continually updated.
-	if _, err := db.DB.Exec(JobsDbIndexes); err != nil {
 		return err
 	}
 
@@ -338,13 +285,14 @@ func InitDB() error {
 // This function also sets the subcluster if necessary!
 func SanityChecks(job *schema.BaseJob) error {
 	if c := archive.GetCluster(job.Cluster); c == nil {
-		return fmt.Errorf("no such cluster: %#v", job.Cluster)
+		return fmt.Errorf("no such cluster: %v", job.Cluster)
 	}
 	if err := archive.AssignSubCluster(job); err != nil {
+		log.Warn("Error while assigning subcluster to job")
 		return err
 	}
 	if !job.State.Valid() {
-		return fmt.Errorf("not a valid job state: %#v", job.State)
+		return fmt.Errorf("not a valid job state: %v", job.State)
 	}
 	if len(job.Resources) == 0 || len(job.User) == 0 {
 		return fmt.Errorf("'resources' and 'user' should not be empty")

internal/repository/job.go

@@ -14,9 +14,11 @@ import (
 	"sync"
 	"time"
 
+	"github.com/99designs/gqlgen/graphql"
 	"github.com/ClusterCockpit/cc-backend/internal/auth"
 	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
 	"github.com/ClusterCockpit/cc-backend/internal/metricdata"
+	"github.com/ClusterCockpit/cc-backend/pkg/archive"
 	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	"github.com/ClusterCockpit/cc-backend/pkg/lrucache"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
@@ -31,6 +33,7 @@ var (
 
 type JobRepository struct {
 	DB     *sqlx.DB
+	driver string
 
 	stmtCache *sq.StmtCache
 	cache     *lrucache.Cache
@@ -45,6 +48,8 @@ func GetJobRepository() *JobRepository {
 
 		jobRepoInstance = &JobRepository{
 			DB:     db.DB,
+			driver: db.Driver,
+
 			stmtCache:      sq.NewStmtCache(db.DB),
 			cache:          lrucache.New(1024 * 1024),
 			archiveChannel: make(chan *schema.Job, 128),
@@ -67,14 +72,20 @@ func scanJob(row interface{ Scan(...interface{}) error }) (*schema.Job, error) {
 	if err := row.Scan(
 		&job.ID, &job.JobID, &job.User, &job.Project, &job.Cluster, &job.SubCluster, &job.StartTimeUnix, &job.Partition, &job.ArrayJobId,
 		&job.NumNodes, &job.NumHWThreads, &job.NumAcc, &job.Exclusive, &job.MonitoringStatus, &job.SMT, &job.State,
-		&job.Duration, &job.Walltime, &job.RawResources /*&job.MetaData*/); err != nil {
+		&job.Duration, &job.Walltime, &job.RawResources /*&job.RawMetaData*/); err != nil {
+		log.Warn("Error while scanning rows")
 		return nil, err
 	}
 
 	if err := json.Unmarshal(job.RawResources, &job.Resources); err != nil {
+		log.Warn("Error while unmarhsaling raw resources json")
 		return nil, err
 	}
 
+	// if err := json.Unmarshal(job.RawMetaData, &job.MetaData); err != nil {
+	// 	return nil, err
+	// }
+
 	job.StartTime = time.Unix(job.StartTimeUnix, 0)
 	if job.Duration == 0 && job.State == schema.JobStateRunning {
 		job.Duration = int32(time.Since(job.StartTime).Seconds())
@@ -84,11 +95,14 @@ func scanJob(row interface{ Scan(...interface{}) error }) (*schema.Job, error) {
 	return job, nil
 }
 
-func (r *JobRepository) FetchMetadata(job *schema.Job) (map[string]string, error) {
+func (r *JobRepository) FetchJobName(job *schema.Job) (*string, error) {
+	start := time.Now()
 	cachekey := fmt.Sprintf("metadata:%d", job.ID)
 	if cached := r.cache.Get(cachekey, nil); cached != nil {
 		job.MetaData = cached.(map[string]string)
-		return job.MetaData, nil
+		if jobName := job.MetaData["jobName"]; jobName != "" {
+			return &jobName, nil
+		}
 	}
 
 	if err := sq.Select("job.meta_data").From("job").Where("job.id = ?", job.ID).
@@ -105,6 +119,40 @@ func (r *JobRepository) FetchMetadata(job *schema.Job) (map[string]string, error
 	}
 
 	r.cache.Put(cachekey, job.MetaData, len(job.RawMetaData), 24*time.Hour)
+	log.Infof("Timer FetchJobName %s", time.Since(start))
+
+	if jobName := job.MetaData["jobName"]; jobName != "" {
+		return &jobName, nil
+	} else {
+		return new(string), nil
+	}
+}
+
+func (r *JobRepository) FetchMetadata(job *schema.Job) (map[string]string, error) {
+	start := time.Now()
+	cachekey := fmt.Sprintf("metadata:%d", job.ID)
+	if cached := r.cache.Get(cachekey, nil); cached != nil {
+		job.MetaData = cached.(map[string]string)
+		return job.MetaData, nil
+	}
+
+	if err := sq.Select("job.meta_data").From("job").Where("job.id = ?", job.ID).
+		RunWith(r.stmtCache).QueryRow().Scan(&job.RawMetaData); err != nil {
+		log.Warn("Error while scanning for job metadata")
+		return nil, err
+	}
+
+	if len(job.RawMetaData) == 0 {
+		return nil, nil
+	}
+
+	if err := json.Unmarshal(job.RawMetaData, &job.MetaData); err != nil {
+		log.Warn("Error while unmarshaling raw metadata json")
+		return nil, err
+	}
+
+	r.cache.Put(cachekey, job.MetaData, len(job.RawMetaData), 24*time.Hour)
+	log.Infof("Timer FetchMetadata %s", time.Since(start))
 	return job.MetaData, nil
 }
 
@@ -113,6 +161,7 @@ func (r *JobRepository) UpdateMetadata(job *schema.Job, key, val string) (err er
 	r.cache.Del(cachekey)
 	if job.MetaData == nil {
 		if _, err = r.FetchMetadata(job); err != nil {
+			log.Warnf("Error while fetching metadata for job, DB ID '%v'", job.ID)
 			return err
 		}
 	}
@@ -129,10 +178,12 @@ func (r *JobRepository) UpdateMetadata(job *schema.Job, key, val string) (err er
 	}
 
 	if job.RawMetaData, err = json.Marshal(job.MetaData); err != nil {
+		log.Warnf("Error while marshaling metadata for job, DB ID '%v'", job.ID)
 		return err
 	}
 
 	if _, err = sq.Update("job").Set("meta_data", job.RawMetaData).Where("job.id = ?", job.ID).RunWith(r.stmtCache).Exec(); err != nil {
+		log.Warnf("Error while updating metadata for job, DB ID '%v'", job.ID)
 		return err
 	}
 
@@ -150,6 +201,7 @@ func (r *JobRepository) Find(
 	cluster *string,
 	startTime *int64) (*schema.Job, error) {
 
+	start := time.Now()
 	q := sq.Select(jobColumns...).From("job").
 		Where("job.job_id = ?", *jobId)
 
@@ -160,6 +212,7 @@ func (r *JobRepository) Find(
 		q = q.Where("job.start_time = ?", *startTime)
 	}
 
+	log.Infof("Timer Find %s", time.Since(start))
 	return scanJob(q.RunWith(r.stmtCache).QueryRow())
 }
 
@@ -173,6 +226,7 @@ func (r *JobRepository) FindAll(
 	cluster *string,
 	startTime *int64) ([]*schema.Job, error) {
 
+	start := time.Now()
 	q := sq.Select(jobColumns...).From("job").
 		Where("job.job_id = ?", *jobId)
 
@@ -185,6 +239,7 @@ func (r *JobRepository) FindAll(
 
 	rows, err := q.RunWith(r.stmtCache).Query()
 	if err != nil {
+		log.Error("Error while running query")
 		return nil, err
 	}
 
@@ -192,10 +247,12 @@ func (r *JobRepository) FindAll(
 	for rows.Next() {
 		job, err := scanJob(rows)
 		if err != nil {
+			log.Warn("Error while scanning rows")
 			return nil, err
 		}
 		jobs = append(jobs, job)
 	}
+	log.Infof("Timer FindAll %s", time.Since(start))
 	return jobs, nil
 }
 
@@ -214,12 +271,12 @@ func (r *JobRepository) FindById(jobId int64) (*schema.Job, error) {
 func (r *JobRepository) Start(job *schema.JobMeta) (id int64, err error) {
 	job.RawResources, err = json.Marshal(job.Resources)
 	if err != nil {
-		return -1, fmt.Errorf("encoding resources field failed: %w", err)
+		return -1, fmt.Errorf("REPOSITORY/JOB > encoding resources field failed: %w", err)
 	}
 
 	job.RawMetaData, err = json.Marshal(job.MetaData)
 	if err != nil {
-		return -1, fmt.Errorf("encoding metaData field failed: %w", err)
+		return -1, fmt.Errorf("REPOSITORY/JOB > encoding metaData field failed: %w", err)
 	}
 
 	res, err := r.DB.NamedExec(`INSERT INTO job (
@@ -259,7 +316,7 @@ func (r *JobRepository) DeleteJobsBefore(startTime int64) (int, error) {
 	err := r.DB.Get(&cnt, qs) //ignore error as it will also occur in delete statement
 	_, err = r.DB.Exec(`DELETE FROM job WHERE job.start_time < ?`, startTime)
 	if err != nil {
-		log.Warnf(" DeleteJobsBefore(%d): error %v", startTime, err)
+		log.Errorf(" DeleteJobsBefore(%d): error %#v", startTime, err)
 	} else {
 		log.Infof("DeleteJobsBefore(%d): Deleted %d jobs", startTime, cnt)
 	}
@@ -269,7 +326,7 @@ func (r *JobRepository) DeleteJobsBefore(startTime int64) (int, error) {
 func (r *JobRepository) DeleteJobById(id int64) error {
 	_, err := r.DB.Exec(`DELETE FROM job WHERE job.id = ?`, id)
 	if err != nil {
-		log.Warnf("DeleteJobById(%d): error %v", id, err)
+		log.Errorf("DeleteJobById(%d): error %#v", id, err)
 	} else {
 		log.Infof("DeleteJobById(%d): Success", id)
 	}
@@ -278,6 +335,7 @@ func (r *JobRepository) DeleteJobById(id int64) error {
 
 // TODO: Use node hours instead: SELECT job.user, sum(job.num_nodes * (CASE WHEN job.job_state = "running" THEN CAST(strftime('%s', 'now') AS INTEGER) - job.start_time ELSE job.duration END)) as x FROM job GROUP BY user ORDER BY x DESC;
 func (r *JobRepository) CountGroupedJobs(ctx context.Context, aggreg model.Aggregate, filters []*model.JobFilter, weight *model.Weights, limit *int) (map[string]int, error) {
+	start := time.Now()
 	if !aggreg.IsValid() {
 		return nil, errors.New("invalid aggregate")
 	}
@@ -292,6 +350,8 @@ func (r *JobRepository) CountGroupedJobs(ctx context.Context, aggreg model.Aggre
 			now := time.Now().Unix()
 			count = fmt.Sprintf(`sum(job.num_nodes * (CASE WHEN job.job_state = "running" THEN %d - job.start_time ELSE job.duration END)) as count`, now)
 			runner = r.DB
+		default:
+			log.Infof("CountGroupedJobs() Weight %v unknown.", *weight)
 		}
 	}
 
@@ -311,6 +371,7 @@ func (r *JobRepository) CountGroupedJobs(ctx context.Context, aggreg model.Aggre
 	counts := map[string]int{}
 	rows, err := q.RunWith(runner).Query()
 	if err != nil {
+		log.Error("Error while running query")
 		return nil, err
 	}
 
@@ -318,12 +379,14 @@ func (r *JobRepository) CountGroupedJobs(ctx context.Context, aggreg model.Aggre
 		var group string
 		var count int
 		if err := rows.Scan(&group, &count); err != nil {
+			log.Warn("Error while scanning rows")
 			return nil, err
 		}
 
 		counts[group] = count
 	}
 
+	log.Infof("Timer CountGroupedJobs %s", time.Since(start))
 	return counts, nil
 }
 
@@ -360,10 +423,13 @@ func (r *JobRepository) MarkArchived(
 			stmt = stmt.Set("net_bw_avg", stats.Avg)
 		case "file_bw":
 			stmt = stmt.Set("file_bw_avg", stats.Avg)
+		default:
+			log.Infof("MarkArchived() Metric '%v' unknown", metric)
 		}
 	}
 
 	if _, err := stmt.RunWith(r.stmtCache).Exec(); err != nil {
+		log.Warn("Error while marking job as archived")
 		return err
 	}
 	return nil
@@ -418,43 +484,205 @@ func (r *JobRepository) WaitForArchiving(){
 	r.archivePending.Wait()
 }
 
-var ErrNotFound = errors.New("no such job or user")
+var ErrNotFound = errors.New("no such jobname, project or user")
+var ErrForbidden = errors.New("not authorized")
 
-// FindJobOrUser returns a job database ID or a username if a job or user machtes the search term.
+// FindJobnameOrUserOrProject returns a jobName or a username or a projectId if a jobName or user or project matches the search term.
-// As 0 is a valid job id, check if username is "" instead in order to check what machted.
+// If query is found to be an integer (= conversion to INT datatype succeeds), skip back to parent call
 // If nothing matches the search, `ErrNotFound` is returned.
-func (r *JobRepository) FindJobOrUser(ctx context.Context, searchterm string) (job int64, username string, err error) {
+
+func (r *JobRepository) FindJobnameOrUserOrProject(ctx context.Context, searchterm string) (metasnip string, username string, project string, err error) {
 	user := auth.GetUser(ctx)
-	if id, err := strconv.Atoi(searchterm); err == nil {
+	if _, err := strconv.Atoi(searchterm); err == nil { // Return empty on successful conversion: parent method will redirect for integer jobId
-		qb := sq.Select("job.id").From("job").Where("job.job_id = ?", id)
+		return "", "", "", nil
+	} else { // has to have letters
+
 		if user != nil && user.HasNotRoles([]string{auth.RoleAdmin, auth.RoleSupport}) {
-			qb = qb.Where("job.user = ?", user.Username)
+			err := sq.Select("job.user").Distinct().From("job").
-		}
+				Where("job.user = ?", searchterm).
-
+				RunWith(r.stmtCache).QueryRow().Scan(&username)
-		err := qb.RunWith(r.stmtCache).QueryRow().Scan(&job)
 			if err != nil && err != sql.ErrNoRows {
-			return 0, "", err
+				return "", "", "", err
 			} else if err == nil {
-			return job, "", nil
+				return "", username, "", nil
+			}
+
+			if username == "" { // Try with Name2Username query
+				errtwo := sq.Select("user.username").Distinct().From("user").
+					Where("user.name LIKE ?", fmt.Sprint("%"+searchterm+"%")).
+					RunWith(r.stmtCache).QueryRow().Scan(&username)
+				if errtwo != nil && errtwo != sql.ErrNoRows {
+					return "", "", "", errtwo
+				} else if errtwo == nil {
+					return "", username, "", nil
+				}
 			}
 		}
 
+		if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
+			err := sq.Select("job.project").Distinct().From("job").
+				Where("job.project = ?", searchterm).
+				RunWith(r.stmtCache).QueryRow().Scan(&project)
+			if err != nil && err != sql.ErrNoRows {
+				return "", "", "", err
+			} else if err == nil {
+				return "", "", project, nil
+			}
+		}
+
+		// All Authorizations: If unlabeled query not username or projectId, try for jobname: Match Metadata, on hit, parent method redirects to jobName GQL query
+		err := sq.Select("job.cluster").Distinct().From("job").
+			Where("job.meta_data LIKE ?", "%"+searchterm+"%").
+			RunWith(r.stmtCache).QueryRow().Scan(&metasnip)
+		if err != nil && err != sql.ErrNoRows {
+			return "", "", "", err
+		} else if err == nil {
+			return metasnip[0:1], "", "", nil
+		}
+
+		return "", "", "", ErrNotFound
+	}
+}
+
+func (r *JobRepository) FindUser(ctx context.Context, searchterm string) (username string, err error) {
+	user := auth.GetUser(ctx)
 	if user == nil || user.HasAnyRole([]string{auth.RoleAdmin, auth.RoleSupport}) {
 		err := sq.Select("job.user").Distinct().From("job").
 			Where("job.user = ?", searchterm).
 			RunWith(r.stmtCache).QueryRow().Scan(&username)
 		if err != nil && err != sql.ErrNoRows {
-			return 0, "", err
+			return "", err
 		} else if err == nil {
-			return 0, username, nil
+			return username, nil
+		}
+		return "", ErrNotFound
+
+	} else {
+		log.Infof("Non-Admin User %s : Requested Query Username -> %s: Forbidden", user.Name, searchterm)
+		return "", ErrForbidden
 	}
 }
 
-	return 0, "", ErrNotFound
+func (r *JobRepository) FindUserByName(ctx context.Context, searchterm string) (username string, err error) {
+	user := auth.GetUser(ctx)
+	if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
+		err := sq.Select("user.username").Distinct().From("user").
+			Where("user.name = ?", searchterm).
+			RunWith(r.stmtCache).QueryRow().Scan(&username)
+		if err != nil && err != sql.ErrNoRows {
+			return "", err
+		} else if err == nil {
+			return username, nil
+		}
+		return "", ErrNotFound
+
+	} else {
+		log.Infof("Non-Admin User %s : Requested Query Name -> %s: Forbidden", user.Name, searchterm)
+		return "", ErrForbidden
+	}
+}
+
+func (r *JobRepository) FindUsers(ctx context.Context, searchterm string) (usernames []string, err error) {
+	user := auth.GetUser(ctx)
+	emptyResult := make([]string, 0)
+	if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
+		rows, err := sq.Select("job.user").Distinct().From("job").
+			Where("job.user LIKE ?", fmt.Sprint("%", searchterm, "%")).
+			RunWith(r.stmtCache).Query()
+		if err != nil && err != sql.ErrNoRows {
+			return emptyResult, err
+		} else if err == nil {
+			for rows.Next() {
+				var name string
+				err := rows.Scan(&name)
+				if err != nil {
+					rows.Close()
+					log.Warnf("Error while scanning rows: %v", err)
+					return emptyResult, err
+				}
+				usernames = append(usernames, name)
+			}
+			return usernames, nil
+		}
+		return emptyResult, ErrNotFound
+
+	} else {
+		log.Infof("Non-Admin User %s : Requested Query Usernames -> %s: Forbidden", user.Name, searchterm)
+		return emptyResult, ErrForbidden
+	}
+}
+
+func (r *JobRepository) FindUsersByName(ctx context.Context, searchterm string) (usernames []string, err error) {
+	user := auth.GetUser(ctx)
+	emptyResult := make([]string, 0)
+	if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
+		rows, err := sq.Select("user.username").Distinct().From("user").
+			Where("user.name LIKE ?", fmt.Sprint("%", searchterm, "%")).
+			RunWith(r.stmtCache).Query()
+		if err != nil && err != sql.ErrNoRows {
+			return emptyResult, err
+		} else if err == nil {
+			for rows.Next() {
+				var username string
+				err := rows.Scan(&username)
+				if err != nil {
+					rows.Close()
+					log.Warnf("Error while scanning rows: %v", err)
+					return emptyResult, err
+				}
+				usernames = append(usernames, username)
+			}
+			return usernames, nil
+		}
+		return emptyResult, ErrNotFound
+
+	} else {
+		log.Infof("Non-Admin User %s : Requested Query name -> %s: Forbidden", user.Name, searchterm)
+		return emptyResult, ErrForbidden
+	}
+}
+
+func (r *JobRepository) FindNameByUser(ctx context.Context, searchterm string) (name string, err error) {
+	user := auth.GetUser(ctx)
+	if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
+		err := sq.Select("user.name").Distinct().From("user").
+			Where("user.username = ?", searchterm).
+			RunWith(r.stmtCache).QueryRow().Scan(&name)
+		if err != nil && err != sql.ErrNoRows {
+			return "", err
+		} else if err == nil {
+			return name, nil
+		}
+		return "", ErrNotFound
+
+	} else {
+		log.Infof("Non-Admin User %s : Requested Query Name -> %s: Forbidden", user.Name, searchterm)
+		return "", ErrForbidden
+	}
+}
+
+func (r *JobRepository) FindProject(ctx context.Context, searchterm string) (project string, err error) {
+
+	user := auth.GetUser(ctx)
+	if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
+		err := sq.Select("job.project").Distinct().From("job").
+			Where("job.project = ?", searchterm).
+			RunWith(r.stmtCache).QueryRow().Scan(&project)
+		if err != nil && err != sql.ErrNoRows {
+			return "", err
+		} else if err == nil {
+			return project, nil
+		}
+		return "", ErrNotFound
+	} else {
+		log.Infof("Non-Admin User %s : Requested Query Project -> %s: Forbidden", user.Name, project)
+		return "", ErrForbidden
+	}
 }
 
 func (r *JobRepository) Partitions(cluster string) ([]string, error) {
 	var err error
+	start := time.Now()
 	partitions := r.cache.Get("partitions:"+cluster, func() (interface{}, time.Duration, int) {
 		parts := []string{}
 		if err = r.DB.Select(&parts, `SELECT DISTINCT job.partition FROM job WHERE job.cluster = ?;`, cluster); err != nil {
@@ -466,18 +694,22 @@ func (r *JobRepository) Partitions(cluster string) ([]string, error) {
 	if err != nil {
 		return nil, err
 	}
+	log.Infof("Timer Partitions %s", time.Since(start))
 	return partitions.([]string), nil
 }
 
 // AllocatedNodes returns a map of all subclusters to a map of hostnames to the amount of jobs running on that host.
 // Hosts with zero jobs running on them will not show up!
 func (r *JobRepository) AllocatedNodes(cluster string) (map[string]map[string]int, error) {
+
+	start := time.Now()
 	subclusters := make(map[string]map[string]int)
 	rows, err := sq.Select("resources", "subcluster").From("job").
 		Where("job.job_state = 'running'").
 		Where("job.cluster = ?", cluster).
 		RunWith(r.stmtCache).Query()
 	if err != nil {
+		log.Error("Error while running query")
 		return nil, err
 	}
 
@@ -488,9 +720,11 @@ func (r *JobRepository) AllocatedNodes(cluster string) (map[string]map[string]in
 		var resources []*schema.Resource
 		var subcluster string
 		if err := rows.Scan(&raw, &subcluster); err != nil {
+			log.Warn("Error while scanning rows")
 			return nil, err
 		}
 		if err := json.Unmarshal(raw, &resources); err != nil {
+			log.Warn("Error while unmarshaling raw resources json")
 			return nil, err
 		}
 
@@ -505,10 +739,13 @@ func (r *JobRepository) AllocatedNodes(cluster string) (map[string]map[string]in
 		}
 	}
 
+	log.Infof("Timer AllocatedNodes %s", time.Since(start))
 	return subclusters, nil
 }
 
 func (r *JobRepository) StopJobsExceedingWalltimeBy(seconds int) error {
+
+	start := time.Now()
 	res, err := sq.Update("job").
 		Set("monitoring_status", schema.MonitoringStatusArchivingFailed).
 		Set("duration", 0).
@@ -518,16 +755,243 @@ func (r *JobRepository) StopJobsExceedingWalltimeBy(seconds int) error {
 		Where(fmt.Sprintf("(%d - job.start_time) > (job.walltime + %d)", time.Now().Unix(), seconds)).
 		RunWith(r.DB).Exec()
 	if err != nil {
+		log.Warn("Error while stopping jobs exceeding walltime")
 		return err
 	}
 
 	rowsAffected, err := res.RowsAffected()
 	if err != nil {
+		log.Warn("Error while fetching affected rows after stopping due to exceeded walltime")
 		return err
 	}
 
 	if rowsAffected > 0 {
-		log.Warnf("%d jobs have been marked as failed due to running too long", rowsAffected)
+		log.Infof("%d jobs have been marked as failed due to running too long", rowsAffected)
 	}
+	log.Infof("Timer StopJobsExceedingWalltimeBy %s", time.Since(start))
 	return nil
 }
+
+// TODO: Move to config
+const ShortJobDuration int = 5 * 60
+
+// GraphQL validation should make sure that no unkown values can be specified.
+var groupBy2column = map[model.Aggregate]string{
+	model.AggregateUser:    "job.user",
+	model.AggregateProject: "job.project",
+	model.AggregateCluster: "job.cluster",
+}
+
+// Helper function for the jobsStatistics GraphQL query placed here so that schema.resolvers.go is not too full.
+func (r *JobRepository) JobsStatistics(ctx context.Context,
+	filter []*model.JobFilter,
+	groupBy *model.Aggregate) ([]*model.JobsStatistics, error) {
+
+	start := time.Now()
+	// In case `groupBy` is nil (not used), the model.JobsStatistics used is at the key '' (empty string)
+	stats := map[string]*model.JobsStatistics{}
+	var castType string
+
+	if r.driver == "sqlite3" {
+		castType = "int"
+	} else if r.driver == "mysql" {
+		castType = "unsigned"
+	}
+
+	// `socketsPerNode` and `coresPerSocket` can differ from cluster to cluster, so we need to explicitly loop over those.
+	for _, cluster := range archive.Clusters {
+		for _, subcluster := range cluster.SubClusters {
+			corehoursCol := fmt.Sprintf("CAST(ROUND(SUM(job.duration * job.num_nodes * %d * %d) / 3600) as %s)", subcluster.SocketsPerNode, subcluster.CoresPerSocket, castType)
+			var rawQuery sq.SelectBuilder
+			if groupBy == nil {
+				rawQuery = sq.Select(
+					"''",
+					"COUNT(job.id)",
+					fmt.Sprintf("CAST(ROUND(SUM(job.duration) / 3600) as %s)", castType),
+					corehoursCol,
+				).From("job")
+			} else {
+				col := groupBy2column[*groupBy]
+				rawQuery = sq.Select(
+					col,
+					"COUNT(job.id)",
+					fmt.Sprintf("CAST(ROUND(SUM(job.duration) / 3600) as %s)", castType),
+					corehoursCol,
+				).From("job").GroupBy(col)
+			}
+
+			rawQuery = rawQuery.
+				Where("job.cluster = ?", cluster.Name).
+				Where("job.subcluster = ?", subcluster.Name)
+
+			query, qerr := SecurityCheck(ctx, rawQuery)
+
+			if qerr != nil {
+				return nil, qerr
+			}
+
+			for _, f := range filter {
+				query = BuildWhereClause(f, query)
+			}
+
+			rows, err := query.RunWith(r.DB).Query()
+			if err != nil {
+				log.Warn("Error while querying DB for job statistics")
+				return nil, err
+			}
+
+			for rows.Next() {
+				var id sql.NullString
+				var jobs, walltime, corehours sql.NullInt64
+				if err := rows.Scan(&id, &jobs, &walltime, &corehours); err != nil {
+					log.Warn("Error while scanning rows")
+					return nil, err
+				}
+
+				if id.Valid {
+					if s, ok := stats[id.String]; ok {
+						s.TotalJobs += int(jobs.Int64)
+						s.TotalWalltime += int(walltime.Int64)
+						s.TotalCoreHours += int(corehours.Int64)
+					} else {
+						stats[id.String] = &model.JobsStatistics{
+							ID:             id.String,
+							TotalJobs:      int(jobs.Int64),
+							TotalWalltime:  int(walltime.Int64),
+							TotalCoreHours: int(corehours.Int64),
+						}
+					}
+				}
+			}
+
+		}
+	}
+
+	if groupBy == nil {
+		query := sq.Select("COUNT(job.id)").From("job").Where("job.duration < ?", ShortJobDuration)
+		query, qerr := SecurityCheck(ctx, query)
+
+		if qerr != nil {
+			return nil, qerr
+		}
+
+		for _, f := range filter {
+			query = BuildWhereClause(f, query)
+		}
+		if err := query.RunWith(r.DB).QueryRow().Scan(&(stats[""].ShortJobs)); err != nil {
+			log.Warn("Error while scanning rows for short job stats")
+			return nil, err
+		}
+	} else {
+		col := groupBy2column[*groupBy]
+		query := sq.Select(col, "COUNT(job.id)").From("job").Where("job.duration < ?", ShortJobDuration)
+
+		query, qerr := SecurityCheck(ctx, query)
+
+		if qerr != nil {
+			return nil, qerr
+		}
+
+		for _, f := range filter {
+			query = BuildWhereClause(f, query)
+		}
+		rows, err := query.RunWith(r.DB).Query()
+		if err != nil {
+			log.Warn("Error while querying jobs for short jobs")
+			return nil, err
+		}
+
+		for rows.Next() {
+			var id sql.NullString
+			var shortJobs sql.NullInt64
+			if err := rows.Scan(&id, &shortJobs); err != nil {
+				log.Warn("Error while scanning rows for short jobs")
+				return nil, err
+			}
+
+			if id.Valid {
+				stats[id.String].ShortJobs = int(shortJobs.Int64)
+			}
+		}
+	}
+
+	// Calculating the histogram data is expensive, so only do it if needed.
+	// An explicit resolver can not be used because we need to know the filters.
+	histogramsNeeded := false
+	fields := graphql.CollectFieldsCtx(ctx, nil)
+	for _, col := range fields {
+		if col.Name == "histDuration" || col.Name == "histNumNodes" {
+			histogramsNeeded = true
+		}
+	}
+
+	res := make([]*model.JobsStatistics, 0, len(stats))
+	for _, stat := range stats {
+		res = append(res, stat)
+		id, col := "", ""
+		if groupBy != nil {
+			id = stat.ID
+			col = groupBy2column[*groupBy]
+		}
+
+		if histogramsNeeded {
+			var err error
+			value := fmt.Sprintf(`CAST(ROUND((CASE WHEN job.job_state = "running" THEN %d - job.start_time ELSE job.duration END) / 3600) as %s) as value`, time.Now().Unix(), castType)
+			stat.HistDuration, err = r.jobsStatisticsHistogram(ctx, value, filter, id, col)
+			if err != nil {
+				log.Warn("Error while loading job statistics histogram: running jobs")
+				return nil, err
+			}
+
+			stat.HistNumNodes, err = r.jobsStatisticsHistogram(ctx, "job.num_nodes as value", filter, id, col)
+			if err != nil {
+				log.Warn("Error while loading job statistics histogram: num nodes")
+				return nil, err
+			}
+		}
+	}
+
+	log.Infof("Timer JobStatistics %s", time.Since(start))
+	return res, nil
+}
+
+// `value` must be the column grouped by, but renamed to "value". `id` and `col` can optionally be used
+// to add a condition to the query of the kind "<col> = <id>".
+func (r *JobRepository) jobsStatisticsHistogram(ctx context.Context,
+	value string, filters []*model.JobFilter, id, col string) ([]*model.HistoPoint, error) {
+
+	start := time.Now()
+	query := sq.Select(value, "COUNT(job.id) AS count").From("job")
+	query, qerr := SecurityCheck(ctx, sq.Select(value, "COUNT(job.id) AS count").From("job"))
+
+	if qerr != nil {
+		return nil, qerr
+	}
+
+	for _, f := range filters {
+		query = BuildWhereClause(f, query)
+	}
+
+	if len(id) != 0 && len(col) != 0 {
+		query = query.Where(col+" = ?", id)
+	}
+
+	rows, err := query.GroupBy("value").RunWith(r.DB).Query()
+	if err != nil {
+		log.Error("Error while running query")
+		return nil, err
+	}
+
+	points := make([]*model.HistoPoint, 0)
+	for rows.Next() {
+		point := model.HistoPoint{}
+		if err := rows.Scan(&point.Value, &point.Count); err != nil {
+			log.Warn("Error while scanning rows")
+			return nil, err
+		}
+
+		points = append(points, &point)
+	}
+	log.Infof("Timer jobsStatisticsHistogram %s", time.Since(start))
+	return points, nil
+}

internal/repository/job_test.go

@@ -8,10 +8,12 @@ import (
 	"fmt"
 	"testing"
 
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	_ "github.com/mattn/go-sqlite3"
 )
 
 func init() {
+	log.Init("info", true)
 	Connect("sqlite3", "../../test/test.db")
 }
 

internal/repository/migration.go

@@ -0,0 +1,109 @@
+// Copyright (C) 2022 NHR@FAU, University Erlangen-Nuremberg.
+// All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+package repository
+
+import (
+	"database/sql"
+	"embed"
+	"fmt"
+	"os"
+
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/golang-migrate/migrate/v4"
+	"github.com/golang-migrate/migrate/v4/database/mysql"
+	"github.com/golang-migrate/migrate/v4/database/sqlite3"
+	"github.com/golang-migrate/migrate/v4/source/iofs"
+)
+
+const supportedVersion uint = 2
+
+//go:embed migrations/*
+var migrationFiles embed.FS
+
+func checkDBVersion(backend string, db *sql.DB) {
+	var m *migrate.Migrate
+
+	if backend == "sqlite3" {
+
+		driver, err := sqlite3.WithInstance(db, &sqlite3.Config{})
+		if err != nil {
+			log.Fatal(err)
+		}
+		d, err := iofs.New(migrationFiles, "migrations/sqlite3")
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		m, err = migrate.NewWithInstance("iofs", d, "sqlite3", driver)
+		if err != nil {
+			log.Fatal(err)
+		}
+	} else if backend == "mysql" {
+		driver, err := mysql.WithInstance(db, &mysql.Config{})
+		if err != nil {
+			log.Fatal(err)
+		}
+		d, err := iofs.New(migrationFiles, "migrations/mysql")
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		m, err = migrate.NewWithInstance("iofs", d, "mysql", driver)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+
+	v, _, err := m.Version()
+	if err != nil {
+		if err == migrate.ErrNilVersion {
+			log.Warn("Legacy database without version or missing database file!")
+		} else {
+			log.Fatal(err)
+		}
+	}
+
+	if v < supportedVersion {
+		log.Warnf("Unsupported database version %d, need %d.\nPlease backup your database file and run cc-backend --migrate-db", v, supportedVersion)
+		os.Exit(0)
+	}
+
+	if v > supportedVersion {
+		log.Warnf("Unsupported database version %d, need %d.\nPlease refer to documentation how to downgrade db with external migrate tool!", v, supportedVersion)
+		os.Exit(0)
+	}
+}
+
+func MigrateDB(backend string, db string) {
+	var m *migrate.Migrate
+
+	if backend == "sqlite3" {
+		d, err := iofs.New(migrationFiles, "migrations/sqlite3")
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		m, err = migrate.NewWithSourceInstance("iofs", d, fmt.Sprintf("sqlite3://%s?_foreign_keys=on", db))
+		if err != nil {
+			log.Fatal(err)
+		}
+	} else if backend == "mysql" {
+		d, err := iofs.New(migrationFiles, "migrations/mysql")
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		m, err = migrate.NewWithSourceInstance("iofs", d, fmt.Sprintf("mysql://%s?multiStatements=true", db))
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+
+	if err := m.Up(); err != nil {
+		log.Fatal(err)
+	}
+
+	m.Close()
+}

internal/repository/migrations/mysql/01_init-schema.down.sql

@@ -0,0 +1,5 @@
+DROP TABLE IF EXISTS job;
+DROP TABLE IF EXISTS tags;
+DROP TABLE IF EXISTS jobtag;
+DROP TABLE IF EXISTS configuration;
+DROP TABLE IF EXISTS user;

internal/repository/migrations/mysql/01_init-schema.up.sql

@@ -0,0 +1,62 @@
+CREATE TABLE IF NOT EXISTS job (
+    id                INTEGER AUTO_INCREMENT PRIMARY KEY ,
+    job_id            BIGINT NOT NULL,
+    cluster           VARCHAR(255) NOT NULL,
+    subcluster        VARCHAR(255) NOT NULL,
+    start_time        BIGINT NOT NULL, -- Unix timestamp
+
+    user              VARCHAR(255) NOT NULL,
+    project           VARCHAR(255) NOT NULL,
+    `partition`       VARCHAR(255) NOT NULL,
+    array_job_id      BIGINT NOT NULL,
+    duration          INT NOT NULL DEFAULT 0,
+    walltime          INT NOT NULL DEFAULT 0,
+    job_state         VARCHAR(255) NOT NULL 
+    CHECK(job_state IN ('running', 'completed', 'failed', 'cancelled',
+            'stopped', 'timeout', 'preempted', 'out_of_memory')),
+    meta_data         TEXT,          -- JSON
+    resources         TEXT NOT NULL, -- JSON
+
+    num_nodes         INT NOT NULL,
+    num_hwthreads     INT NOT NULL,
+    num_acc           INT NOT NULL,
+    smt               TINYINT NOT NULL DEFAULT 1 CHECK(smt               IN (0, 1   )),
+    exclusive         TINYINT NOT NULL DEFAULT 1 CHECK(exclusive         IN (0, 1, 2)),
+    monitoring_status TINYINT NOT NULL DEFAULT 1 CHECK(monitoring_status IN (0, 1, 2, 3)),
+
+    mem_used_max        REAL NOT NULL DEFAULT 0.0,
+    flops_any_avg       REAL NOT NULL DEFAULT 0.0,
+    mem_bw_avg          REAL NOT NULL DEFAULT 0.0,
+    load_avg            REAL NOT NULL DEFAULT 0.0,
+    net_bw_avg          REAL NOT NULL DEFAULT 0.0,
+    net_data_vol_total  REAL NOT NULL DEFAULT 0.0,
+    file_bw_avg         REAL NOT NULL DEFAULT 0.0,
+    file_data_vol_total REAL NOT NULL DEFAULT 0.0);
+
+CREATE TABLE IF NOT EXISTS tag (
+    id       INTEGER PRIMARY KEY,
+    tag_type VARCHAR(255) NOT NULL,
+    tag_name VARCHAR(255) NOT NULL,
+    CONSTRAINT be_unique UNIQUE (tag_type, tag_name));
+
+CREATE TABLE IF NOT EXISTS jobtag (
+    job_id INTEGER,
+    tag_id INTEGER,
+    PRIMARY KEY (job_id, tag_id),
+    FOREIGN KEY (job_id) REFERENCES job (id) ON DELETE CASCADE,
+    FOREIGN KEY (tag_id) REFERENCES tag (id) ON DELETE CASCADE);
+
+CREATE TABLE IF NOT EXISTS configuration (
+	username varchar(255),
+	confkey  varchar(255),
+	value    varchar(255),
+	PRIMARY KEY (username, confkey),
+	FOREIGN KEY (username) REFERENCES user (username) ON DELETE CASCADE ON UPDATE NO ACTION);
+
+CREATE TABLE IF NOT EXISTS user (
+	username varchar(255) PRIMARY KEY NOT NULL,
+	password varchar(255) DEFAULT NULL,
+	ldap     tinyint      NOT NULL DEFAULT 0, /* col called "ldap" for historic reasons, fills the "AuthSource" */
+	name     varchar(255) DEFAULT NULL,
+	roles    varchar(255) NOT NULL DEFAULT "[]",
+	email    varchar(255) DEFAULT NULL);

internal/repository/migrations/mysql/02_add-index.down.sql

@@ -0,0 +1,5 @@
+DROP INDEX IF EXISTS job_stats;
+DROP INDEX IF EXISTS job_by_user;
+DROP INDEX IF EXISTS job_by_starttime;
+DROP INDEX IF EXISTS job_by_job_id;
+DROP INDEX IF EXISTS job_by_state;

internal/repository/migrations/mysql/02_add-index.up.sql

@@ -0,0 +1,5 @@
+CREATE INDEX IF NOT EXISTS job_stats        ON job (cluster,subcluster,user);
+CREATE INDEX IF NOT EXISTS job_by_user      ON job (user);
+CREATE INDEX IF NOT EXISTS job_by_starttime ON job (start_time);
+CREATE INDEX IF NOT EXISTS job_by_job_id    ON job (job_id);
+CREATE INDEX IF NOT EXISTS job_by_state     ON job (job_state);

internal/repository/migrations/sqlite3/01_init-schema.down.sql

@@ -0,0 +1,5 @@
+DROP TABLE IF EXISTS job;
+DROP TABLE IF EXISTS tags;
+DROP TABLE IF EXISTS jobtag;
+DROP TABLE IF EXISTS configuration;
+DROP TABLE IF EXISTS user;

internal/repository/migrations/sqlite3/01_init-schema.up.sql

@@ -0,0 +1,62 @@
+CREATE TABLE IF NOT EXISTS job (
+    id                INTEGER PRIMARY KEY,
+    job_id            BIGINT NOT NULL,
+    cluster           VARCHAR(255) NOT NULL,
+    subcluster        VARCHAR(255) NOT NULL,
+    start_time        BIGINT NOT NULL, -- Unix timestamp
+
+    user              VARCHAR(255) NOT NULL,
+    project           VARCHAR(255) NOT NULL,
+    partition         VARCHAR(255) NOT NULL,
+    array_job_id      BIGINT NOT NULL,
+    duration          INT NOT NULL DEFAULT 0,
+    walltime          INT NOT NULL DEFAULT 0,
+    job_state         VARCHAR(255) NOT NULL 
+    CHECK(job_state IN ('running', 'completed', 'failed', 'cancelled',
+            'stopped', 'timeout', 'preempted', 'out_of_memory')),
+    meta_data         TEXT,          -- JSON
+    resources         TEXT NOT NULL, -- JSON
+
+    num_nodes         INT NOT NULL,
+    num_hwthreads     INT NOT NULL,
+    num_acc           INT NOT NULL,
+    smt               TINYINT NOT NULL DEFAULT 1 CHECK(smt               IN (0, 1   )),
+    exclusive         TINYINT NOT NULL DEFAULT 1 CHECK(exclusive         IN (0, 1, 2)),
+    monitoring_status TINYINT NOT NULL DEFAULT 1 CHECK(monitoring_status IN (0, 1, 2, 3)),
+
+    mem_used_max        REAL NOT NULL DEFAULT 0.0,
+    flops_any_avg       REAL NOT NULL DEFAULT 0.0,
+    mem_bw_avg          REAL NOT NULL DEFAULT 0.0,
+    load_avg            REAL NOT NULL DEFAULT 0.0,
+    net_bw_avg          REAL NOT NULL DEFAULT 0.0,
+    net_data_vol_total  REAL NOT NULL DEFAULT 0.0,
+    file_bw_avg         REAL NOT NULL DEFAULT 0.0,
+    file_data_vol_total REAL NOT NULL DEFAULT 0.0);
+
+CREATE TABLE IF NOT EXISTS tag (
+    id       INTEGER PRIMARY KEY,
+    tag_type VARCHAR(255) NOT NULL,
+    tag_name VARCHAR(255) NOT NULL,
+    CONSTRAINT be_unique UNIQUE (tag_type, tag_name));
+
+CREATE TABLE IF NOT EXISTS jobtag (
+    job_id INTEGER,
+    tag_id INTEGER,
+    PRIMARY KEY (job_id, tag_id),
+    FOREIGN KEY (job_id) REFERENCES job (id) ON DELETE CASCADE,
+    FOREIGN KEY (tag_id) REFERENCES tag (id) ON DELETE CASCADE);
+
+CREATE TABLE IF NOT EXISTS configuration (
+	username varchar(255),
+	confkey  varchar(255),
+	value    varchar(255),
+	PRIMARY KEY (username, confkey),
+	FOREIGN KEY (username) REFERENCES user (username) ON DELETE CASCADE ON UPDATE NO ACTION);
+
+CREATE TABLE IF NOT EXISTS user (
+	username varchar(255) PRIMARY KEY NOT NULL,
+	password varchar(255) DEFAULT NULL,
+	ldap     tinyint      NOT NULL DEFAULT 0, /* col called "ldap" for historic reasons, fills the "AuthSource" */
+	name     varchar(255) DEFAULT NULL,
+	roles    varchar(255) NOT NULL DEFAULT "[]",
+	email    varchar(255) DEFAULT NULL);

internal/repository/migrations/sqlite3/02_add-index.down.sql

@@ -0,0 +1,5 @@
+DROP INDEX IF EXISTS job_stats;
+DROP INDEX IF EXISTS job_by_user;
+DROP INDEX IF EXISTS job_by_starttime;
+DROP INDEX IF EXISTS job_by_job_id;
+DROP INDEX IF EXISTS job_by_state;

internal/repository/migrations/sqlite3/02_add-index.up.sql

@@ -0,0 +1,5 @@
+CREATE INDEX IF NOT EXISTS job_stats        ON job (cluster,subcluster,user);
+CREATE INDEX IF NOT EXISTS job_by_user      ON job (user);
+CREATE INDEX IF NOT EXISTS job_by_starttime ON job (start_time);
+CREATE INDEX IF NOT EXISTS job_by_job_id    ON job (job_id);
+CREATE INDEX IF NOT EXISTS job_by_state     ON job (job_state);

internal/repository/query.go

@@ -39,7 +39,7 @@ func (r *JobRepository) QueryJobs(
 		} else if order.Order == model.SortDirectionEnumDesc {
 			query = query.OrderBy(fmt.Sprintf("job.%s DESC", field))
 		} else {
-			return nil, errors.New("invalid sorting order")
+			return nil, errors.New("REPOSITORY/QUERY > invalid sorting order")
 		}
 	}
 
@@ -54,12 +54,14 @@ func (r *JobRepository) QueryJobs(
 
 	sql, args, err := query.ToSql()
 	if err != nil {
+		log.Warn("Error while converting query to sql")
 		return nil, err
 	}
 
 	log.Debugf("SQL query: `%s`, args: %#v", sql, args)
 	rows, err := query.RunWith(r.stmtCache).Query()
 	if err != nil {
+		log.Error("Error while running query")
 		return nil, err
 	}
 
@@ -68,6 +70,7 @@ func (r *JobRepository) QueryJobs(
 		job, err := scanJob(rows)
 		if err != nil {
 			rows.Close()
+			log.Warn("Error while scanning rows")
 			return nil, err
 		}
 		jobs = append(jobs, job)
@@ -135,6 +138,9 @@ func BuildWhereClause(filter *model.JobFilter, query sq.SelectBuilder) sq.Select
 	if filter.Project != nil {
 		query = buildStringCondition("job.project", filter.Project, query)
 	}
+	if filter.JobName != nil {
+		query = buildStringCondition("job.meta_data", filter.JobName, query)
+	}
 	if filter.Cluster != nil {
 		query = buildStringCondition("job.cluster", filter.Cluster, query)
 	}
@@ -217,6 +223,13 @@ func buildStringCondition(field string, cond *model.StringInput, query sq.Select
 	if cond.Contains != nil {
 		return query.Where(field+" LIKE ?", fmt.Sprint("%", *cond.Contains, "%"))
 	}
+	if cond.In != nil {
+		queryUsers := make([]string, len(cond.In))
+		for i, val := range cond.In {
+			queryUsers[i] = val
+		}
+		return query.Where(sq.Or{sq.Eq{"job.user": queryUsers}})
+	}
 	return query
 }
 
@@ -226,7 +239,7 @@ var matchAllCap = regexp.MustCompile("([a-z0-9])([A-Z])")
 func toSnakeCase(str string) string {
 	for _, c := range str {
 		if c == '\'' || c == '\\' {
-			panic("A hacker (probably not)!!!")
+			log.Panic("toSnakeCase() attack vector!")
 		}
 	}
 

internal/repository/tags.go

@@ -9,22 +9,26 @@ import (
 
 	"github.com/ClusterCockpit/cc-backend/pkg/archive"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	sq "github.com/Masterminds/squirrel"
 )
 
 // Add the tag with id `tagId` to the job with the database id `jobId`.
 func (r *JobRepository) AddTag(job int64, tag int64) ([]*schema.Tag, error) {
 	if _, err := r.stmtCache.Exec(`INSERT INTO jobtag (job_id, tag_id) VALUES ($1, $2)`, job, tag); err != nil {
+		log.Error("Error while running query")
 		return nil, err
 	}
 
 	j, err := r.FindById(job)
 	if err != nil {
+		log.Warn("Error while finding job by id")
 		return nil, err
 	}
 
 	tags, err := r.GetTags(&job)
 	if err != nil {
+		log.Warn("Error while getting tags for job")
 		return nil, err
 	}
 
@@ -34,16 +38,19 @@ func (r *JobRepository) AddTag(job int64, tag int64) ([]*schema.Tag, error) {
 // Removes a tag from a job
 func (r *JobRepository) RemoveTag(job, tag int64) ([]*schema.Tag, error) {
 	if _, err := r.stmtCache.Exec("DELETE FROM jobtag WHERE jobtag.job_id = $1 AND jobtag.tag_id = $2", job, tag); err != nil {
+		log.Error("Error while running query")
 		return nil, err
 	}
 
 	j, err := r.FindById(job)
 	if err != nil {
+		log.Warn("Error while finding job by id")
 		return nil, err
 	}
 
 	tags, err := r.GetTags(&job)
 	if err != nil {
+		log.Warn("Error while getting tags for job")
 		return nil, err
 	}
 
@@ -144,6 +151,7 @@ func (r *JobRepository) GetTags(job *int64) ([]*schema.Tag, error) {
 
 	rows, err := q.RunWith(r.stmtCache).Query()
 	if err != nil {
+		log.Error("Error while running query")
 		return nil, err
 	}
 
@@ -151,6 +159,7 @@ func (r *JobRepository) GetTags(job *int64) ([]*schema.Tag, error) {
 	for rows.Next() {
 		tag := &schema.Tag{}
 		if err := rows.Scan(&tag.ID, &tag.Type, &tag.Name); err != nil {
+			log.Warn("Error while scanning rows")
 			return nil, err
 		}
 		tags = append(tags, tag)

internal/repository/user.go

@@ -6,13 +6,13 @@ package repository
 
 import (
 	"encoding/json"
-	"log"
 	"sync"
 	"time"
 
 	"github.com/ClusterCockpit/cc-backend/internal/auth"
 	"github.com/ClusterCockpit/cc-backend/internal/config"
 	"github.com/ClusterCockpit/cc-backend/pkg/lrucache"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	"github.com/jmoiron/sqlx"
 )
 
@@ -33,21 +33,9 @@ func GetUserCfgRepo() *UserCfgRepo {
 	userCfgRepoOnce.Do(func() {
 		db := GetConnection()
 
-		_, err := db.DB.Exec(`
-		CREATE TABLE IF NOT EXISTS configuration (
-			username varchar(255),
-			confkey  varchar(255),
-			value    varchar(255),
-			PRIMARY KEY (username, confkey),
-			FOREIGN KEY (username) REFERENCES user (username) ON DELETE CASCADE ON UPDATE NO ACTION);`)
-
-		if err != nil {
-			log.Fatal(err)
-		}
-
 		lookupConfigStmt, err := db.DB.Preparex(`SELECT confkey, value FROM configuration WHERE configuration.username = ?`)
 		if err != nil {
-			log.Fatal(err)
+			log.Fatalf("db.DB.Preparex() error: %v", err)
 		}
 
 		userCfgRepoInstance = &UserCfgRepo{
@@ -82,6 +70,7 @@ func (uCfg *UserCfgRepo) GetUIConfig(user *auth.User) (map[string]interface{}, e
 
 		rows, err := uCfg.Lookup.Query(user.Username)
 		if err != nil {
+			log.Warnf("Error while looking up user config for user '%v'", user.Username)
 			return err, 0, 0
 		}
 
@@ -90,11 +79,13 @@ func (uCfg *UserCfgRepo) GetUIConfig(user *auth.User) (map[string]interface{}, e
 		for rows.Next() {
 			var key, rawval string
 			if err := rows.Scan(&key, &rawval); err != nil {
+				log.Warn("Error while scanning user config values")
 				return err, 0, 0
 			}
 
 			var val interface{}
 			if err := json.Unmarshal([]byte(rawval), &val); err != nil {
+				log.Warn("Error while unmarshaling raw user config json")
 				return err, 0, 0
 			}
 
@@ -106,6 +97,7 @@ func (uCfg *UserCfgRepo) GetUIConfig(user *auth.User) (map[string]interface{}, e
 		return config, 24 * time.Hour, size
 	})
 	if err, ok := data.(error); ok {
+		log.Error("Error in returned dataset")
 		return nil, err
 	}
 
@@ -122,6 +114,7 @@ func (uCfg *UserCfgRepo) UpdateConfig(
 	if user == nil {
 		var val interface{}
 		if err := json.Unmarshal([]byte(value), &val); err != nil {
+			log.Warn("Error while unmarshaling raw user config json")
 			return err
 		}
 
@@ -131,8 +124,8 @@ func (uCfg *UserCfgRepo) UpdateConfig(
 		return nil
 	}
 
-	if _, err := uCfg.DB.Exec(`REPLACE INTO configuration (username, confkey, value) VALUES (?, ?, ?)`,
+	if _, err := uCfg.DB.Exec(`REPLACE INTO configuration (username, confkey, value) VALUES (?, ?, ?)`, user, key, value); err != nil {
-		user.Username, key, value); err != nil {
+		log.Warnf("Error while replacing user config in DB for user '%v'", user)
 		return err
 	}
 

internal/routerConfig/routes.go

@@ -12,8 +12,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/ClusterCockpit/cc-backend/internal/api"
 	"github.com/ClusterCockpit/cc-backend/internal/auth"
-	"github.com/ClusterCockpit/cc-backend/internal/graph"
 	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
 	"github.com/ClusterCockpit/cc-backend/internal/repository"
 	"github.com/ClusterCockpit/cc-backend/pkg/archive"
@@ -44,7 +44,7 @@ var routes []Route = []Route{
 	{"/monitoring/user/{id}", "monitoring/user.tmpl", "User <ID> - ClusterCockpit", true, setupUserRoute},
 	{"/monitoring/systems/{cluster}", "monitoring/systems.tmpl", "Cluster <ID> - ClusterCockpit", false, setupClusterRoute},
 	{"/monitoring/node/{cluster}/{hostname}", "monitoring/node.tmpl", "Node <ID> - ClusterCockpit", false, setupNodeRoute},
-	{"/monitoring/analysis/{cluster}", "monitoring/analysis.tmpl", "Analaysis - ClusterCockpit", true, setupAnalysisRoute},
+	{"/monitoring/analysis/{cluster}", "monitoring/analysis.tmpl", "Analysis - ClusterCockpit", true, setupAnalysisRoute},
 	{"/monitoring/status/{cluster}", "monitoring/status.tmpl", "Status of <ID> - ClusterCockpit", false, setupClusterRoute},
 }
 
@@ -61,21 +61,21 @@ func setupHomeRoute(i InfoType, r *http.Request) InfoType {
 		State: []schema.JobState{schema.JobStateRunning},
 	}}, nil, nil)
 	if err != nil {
-		log.Errorf("failed to count jobs: %s", err.Error())
+		log.Warnf("failed to count jobs: %s", err.Error())
 		runningJobs = map[string]int{}
 	}
 	totalJobs, err := jobRepo.CountGroupedJobs(r.Context(), model.AggregateCluster, nil, nil, nil)
 	if err != nil {
-		log.Errorf("failed to count jobs: %s", err.Error())
+		log.Warnf("failed to count jobs: %s", err.Error())
 		totalJobs = map[string]int{}
 	}
 	from := time.Now().Add(-24 * time.Hour)
 	recentShortJobs, err := jobRepo.CountGroupedJobs(r.Context(), model.AggregateCluster, []*model.JobFilter{{
 		StartTime: &schema.TimeRange{From: &from, To: nil},
-		Duration:  &schema.IntRange{From: 0, To: graph.ShortJobDuration},
+		Duration:  &schema.IntRange{From: 0, To: repository.ShortJobDuration},
 	}}, nil, nil)
 	if err != nil {
-		log.Errorf("failed to count jobs: %s", err.Error())
+		log.Warnf("failed to count jobs: %s", err.Error())
 		recentShortJobs = map[string]int{}
 	}
 
@@ -158,7 +158,7 @@ func setupTaglistRoute(i InfoType, r *http.Request) InfoType {
 	tags, counts, err := jobRepo.CountTags(username, projects)
 	tagMap := make(map[string][]map[string]interface{})
 	if err != nil {
-		log.Errorf("GetTags failed: %s", err.Error())
+		log.Warnf("GetTags failed: %s", err.Error())
 		i["tagmap"] = tagMap
 		return i
 	}
@@ -188,9 +188,17 @@ func buildFilterPresets(query url.Values) map[string]interface{} {
 		filterPresets["project"] = query.Get("project")
 		filterPresets["projectMatch"] = "eq"
 	}
-	if query.Get("user") != "" {
+	if query.Get("jobName") != "" {
+		filterPresets["jobName"] = query.Get("jobName")
+	}
+	if len(query["user"]) != 0 {
+		if len(query["user"]) == 1 {
 			filterPresets["user"] = query.Get("user")
-		filterPresets["userMatch"] = "eq"
+			filterPresets["userMatch"] = "contains"
+		} else {
+			filterPresets["user"] = query["user"]
+			filterPresets["userMatch"] = "in"
+		}
 	}
 	if len(query["state"]) != 0 {
 		filterPresets["state"] = query["state"]
@@ -301,3 +309,81 @@ func SetupRoutes(router *mux.Router, version string, hash string, buildTime stri
 		})
 	}
 }
+
+func HandleSearchBar(rw http.ResponseWriter, r *http.Request, api *api.RestApi) {
+	if search := r.URL.Query().Get("searchId"); search != "" {
+		splitSearch := strings.Split(search, ":")
+
+		if len(splitSearch) == 2 {
+			switch strings.Trim(splitSearch[0], " ") {
+			case "jobId":
+				http.Redirect(rw, r, "/monitoring/jobs/?jobId="+url.QueryEscape(strings.Trim(splitSearch[1], " ")), http.StatusTemporaryRedirect) // All Users: Redirect to Tablequery
+				return
+			case "jobName":
+				http.Redirect(rw, r, "/monitoring/jobs/?jobName="+url.QueryEscape(strings.Trim(splitSearch[1], " ")), http.StatusTemporaryRedirect) // All Users: Redirect to Tablequery
+				return
+			case "projectId":
+				project, _ := api.JobRepository.FindProject(r.Context(), strings.Trim(splitSearch[1], " ")) // Restricted: projectId
+				if project != "" {
+					http.Redirect(rw, r, "/monitoring/jobs/?projectMatch=eq&project="+url.QueryEscape(project), http.StatusTemporaryRedirect)
+					return
+				} else {
+					http.Redirect(rw, r, "/monitoring/jobs/?jobId=NotFound", http.StatusTemporaryRedirect) // Workaround to display correctly empty table
+				}
+			case "username":
+				usernames, _ := api.JobRepository.FindUsers(r.Context(), strings.Trim(splitSearch[1], " ")) // Restricted: usernames
+				if len(usernames) == 1 {
+					http.Redirect(rw, r, "/monitoring/user/"+usernames[0], http.StatusTemporaryRedirect) // One Match: Redirect to User View
+					return
+				} else if len(usernames) > 1 {
+					http.Redirect(rw, r, "/monitoring/users/?user="+url.QueryEscape(strings.Trim(splitSearch[1], " ")), http.StatusTemporaryRedirect) // > 1 Matches: Redirect to user table
+					return
+				} else {
+					http.Redirect(rw, r, "/monitoring/users/?user=NotFound", http.StatusTemporaryRedirect) // Workaround to display correctly empty table
+				}
+			case "name":
+				usernames, _ := api.JobRepository.FindUsersByName(r.Context(), strings.Trim(splitSearch[1], " ")) // Restricted: usernames queried by name
+				if len(usernames) == 1 {
+					http.Redirect(rw, r, "/monitoring/user/"+usernames[0], http.StatusTemporaryRedirect)
+					return
+				} else if len(usernames) > 1 {
+					joinedNames := strings.Join(usernames, "&user=")
+					http.Redirect(rw, r, "/monitoring/users/?user="+joinedNames, http.StatusTemporaryRedirect) // > 1 Matches: Redirect to user table
+					return
+				} else {
+					http.Redirect(rw, r, "/monitoring/users/?user=NotFound", http.StatusTemporaryRedirect) // Workaround to display correctly empty table
+				}
+			default:
+				http.Error(rw, "'searchId' type parameter unknown", http.StatusBadRequest)
+			}
+
+		} else if len(splitSearch) == 1 {
+			jobname, username, project, err := api.JobRepository.FindJobnameOrUserOrProject(r.Context(), strings.Trim(search, " ")) // Determine Access within
+
+			if err != nil {
+				http.Error(rw, err.Error(), http.StatusInternalServerError)
+				return
+			}
+
+			if username != "" {
+				http.Redirect(rw, r, "/monitoring/user/"+username, http.StatusTemporaryRedirect) // User: Redirect to user page
+				return
+			} else if project != "" {
+				http.Redirect(rw, r, "/monitoring/jobs/?projectMatch=eq&project="+url.QueryEscape(strings.Trim(search, " ")), http.StatusTemporaryRedirect) // projectId (equal)
+				return
+			} else if jobname != "" {
+				http.Redirect(rw, r, "/monitoring/jobs/?jobName="+url.QueryEscape(strings.Trim(search, " ")), http.StatusTemporaryRedirect) // JobName (contains)
+				return
+			} else {
+				http.Redirect(rw, r, "/monitoring/jobs/?jobId="+url.QueryEscape(strings.Trim(search, " ")), http.StatusTemporaryRedirect) // No Result: Probably jobId
+				return
+			}
+
+		} else {
+			http.Error(rw, "'searchId' query parameter malformed", http.StatusBadRequest)
+		}
+
+	} else {
+		http.Redirect(rw, r, "/monitoring/jobs/?", http.StatusTemporaryRedirect)
+	}
+}

internal/runtimeEnv/setup.go

@@ -14,6 +14,8 @@ import (
 	"strconv"
 	"strings"
 	"syscall"
+
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 )
 
 // Very simple and limited .env file reader.
@@ -22,6 +24,7 @@ import (
 func LoadEnv(file string) error {
 	f, err := os.Open(file)
 	if err != nil {
+		log.Error("Error while opening file")
 		return err
 	}
 
@@ -40,14 +43,14 @@ func LoadEnv(file string) error {
 		line = strings.TrimPrefix(line, "export ")
 		parts := strings.SplitN(line, "=", 2)
 		if len(parts) != 2 {
-			return fmt.Errorf("unsupported line: %#v", line)
+			return fmt.Errorf("RUNTIME/SETUP > unsupported line: %#v", line)
 		}
 
 		key := strings.TrimSpace(parts[0])
 		val := strings.TrimSpace(parts[1])
 		if strings.HasPrefix(val, "\"") {
 			if !strings.HasSuffix(val, "\"") {
-				return fmt.Errorf("unsupported line: %#v", line)
+				return fmt.Errorf("RUNTIME/SETUP > unsupported line: %#v", line)
 			}
 
 			runes := []rune(val[1 : len(val)-1])
@@ -65,7 +68,7 @@ func LoadEnv(file string) error {
 					case '"':
 						sb.WriteRune('"')
 					default:
-						return fmt.Errorf("unsupprorted escape sequence in quoted string: backslash %#v", runes[i])
+						return fmt.Errorf("RUNTIME/SETUP > unsupported escape sequence in quoted string: backslash %#v", runes[i])
 					}
 					continue
 				}
@@ -89,11 +92,13 @@ func DropPrivileges(username string, group string) error {
 	if group != "" {
 		g, err := user.LookupGroup(group)
 		if err != nil {
+			log.Warn("Error while looking up group")
 			return err
 		}
 
 		gid, _ := strconv.Atoi(g.Gid)
 		if err := syscall.Setgid(gid); err != nil {
+			log.Warn("Error while setting gid")
 			return err
 		}
 	}
@@ -101,11 +106,13 @@ func DropPrivileges(username string, group string) error {
 	if username != "" {
 		u, err := user.Lookup(username)
 		if err != nil {
+			log.Warn("Error while looking up user")
 			return err
 		}
 
 		uid, _ := strconv.Atoi(u.Uid)
 		if err := syscall.Setuid(uid); err != nil {
+			log.Warn("Error while setting uid")
 			return err
 		}
 	}

pkg/archive/archive.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/ClusterCockpit/cc-backend/pkg/lrucache"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 )
 
 type ArchiveBackend interface {
@@ -40,6 +41,7 @@ func Init(rawConfig json.RawMessage, disableArchive bool) error {
 		Kind string `json:"kind"`
 	}
 	if err := json.Unmarshal(rawConfig, &kind); err != nil {
+		log.Warn("Error while unmarshaling raw config json")
 		return err
 	}
 
@@ -49,10 +51,11 @@ func Init(rawConfig json.RawMessage, disableArchive bool) error {
 		// case "s3":
 		// 	ar = &S3Archive{}
 	default:
-		return fmt.Errorf("unkown archive backend '%s''", kind.Kind)
+		return fmt.Errorf("ARCHIVE/ARCHIVE > unkown archive backend '%s''", kind.Kind)
 	}
 
 	if err := ar.Init(rawConfig); err != nil {
+		log.Error("Error while initializing archiveBackend")
 		return err
 	}
 	return initClusterConfig()
@@ -70,6 +73,7 @@ func LoadAveragesFromArchive(
 
 	metaFile, err := ar.LoadJobMeta(job)
 	if err != nil {
+		log.Warn("Error while loading job metadata from archiveBackend")
 		return err
 	}
 
@@ -88,6 +92,7 @@ func GetStatistics(job *schema.Job) (map[string]schema.JobStatistics, error) {
 
 	metaFile, err := ar.LoadJobMeta(job)
 	if err != nil {
+		log.Warn("Error while loading job metadata from archiveBackend")
 		return nil, err
 	}
 
@@ -104,6 +109,7 @@ func UpdateTags(job *schema.Job, tags []*schema.Tag) error {
 
 	jobMeta, err := ar.LoadJobMeta(job)
 	if err != nil {
+		log.Warn("Error while loading job metadata from archiveBackend")
 		return err
 	}
 

pkg/archive/clusterConfig.go

@@ -9,6 +9,7 @@ import (
 	"fmt"
 
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 )
 
 var Clusters []*schema.Cluster
@@ -23,6 +24,7 @@ func initClusterConfig() error {
 
 		cluster, err := ar.LoadClusterCfg(c)
 		if err != nil {
+			log.Warnf("Error while loading cluster config for cluster '%v'", c)
 			return err
 		}
 
@@ -59,7 +61,7 @@ func initClusterConfig() error {
 
 			nl, err := ParseNodeList(sc.Nodes)
 			if err != nil {
-				return fmt.Errorf("in %s/cluster.json: %w", cluster.Name, err)
+				return fmt.Errorf("ARCHIVE/CLUSTERCONFIG > in %s/cluster.json: %w", cluster.Name, err)
 			}
 			nodeLists[cluster.Name][sc.Name] = nl
 		}
@@ -112,7 +114,7 @@ func AssignSubCluster(job *schema.BaseJob) error {
 
 	cluster := GetCluster(job.Cluster)
 	if cluster == nil {
-		return fmt.Errorf("unkown cluster: %#v", job.Cluster)
+		return fmt.Errorf("ARCHIVE/CLUSTERCONFIG > unkown cluster: %v", job.Cluster)
 	}
 
 	if job.SubCluster != "" {
@@ -121,11 +123,11 @@ func AssignSubCluster(job *schema.BaseJob) error {
 				return nil
 			}
 		}
-		return fmt.Errorf("already assigned subcluster %#v unkown (cluster: %#v)", job.SubCluster, job.Cluster)
+		return fmt.Errorf("ARCHIVE/CLUSTERCONFIG > already assigned subcluster %v unkown (cluster: %v)", job.SubCluster, job.Cluster)
 	}
 
 	if len(job.Resources) == 0 {
-		return fmt.Errorf("job without any resources/hosts")
+		return fmt.Errorf("ARCHIVE/CLUSTERCONFIG > job without any resources/hosts")
 	}
 
 	host0 := job.Resources[0].Hostname
@@ -141,7 +143,7 @@ func AssignSubCluster(job *schema.BaseJob) error {
 		return nil
 	}
 
-	return fmt.Errorf("no subcluster found for cluster %#v and host %#v", job.Cluster, host0)
+	return fmt.Errorf("ARCHIVE/CLUSTERCONFIG > no subcluster found for cluster %v and host %v", job.Cluster, host0)
 }
 
 func GetSubClusterByNode(cluster, hostname string) (string, error) {
@@ -154,12 +156,12 @@ func GetSubClusterByNode(cluster, hostname string) (string, error) {
 
 	c := GetCluster(cluster)
 	if c == nil {
-		return "", fmt.Errorf("unkown cluster: %#v", cluster)
+		return "", fmt.Errorf("ARCHIVE/CLUSTERCONFIG > unkown cluster: %v", cluster)
 	}
 
 	if c.SubClusters[0].Nodes == "" {
 		return c.SubClusters[0].Name, nil
 	}
 
-	return "", fmt.Errorf("no subcluster found for cluster %#v and host %#v", cluster, hostname)
+	return "", fmt.Errorf("ARCHIVE/CLUSTERCONFIG > no subcluster found for cluster %v and host %v", cluster, hostname)
 }

pkg/archive/fsBackend.go

@@ -46,7 +46,7 @@ func loadJobMeta(filename string) (*schema.JobMeta, error) {
 
 	f, err := os.Open(filename)
 	if err != nil {
-		log.Errorf("fsBackend loadJobMeta()- %v", err)
+		log.Errorf("loadJobMeta() > open file error: %v", err)
 		return &schema.JobMeta{}, err
 	}
 	defer f.Close()
@@ -58,19 +58,19 @@ func (fsa *FsArchive) Init(rawConfig json.RawMessage) error {
 
 	var config FsArchiveConfig
 	if err := json.Unmarshal(rawConfig, &config); err != nil {
-		log.Errorf("fsBackend Init()- %v", err)
+		log.Warnf("Init() > Unmarshal error: %#v", err)
 		return err
 	}
 	if config.Path == "" {
-		err := fmt.Errorf("fsBackend Init()- empty path")
+		err := fmt.Errorf("Init() : empty config.Path")
-		log.Errorf("fsBackend Init()- %v", err)
+		log.Errorf("Init() > config.Path error: %v", err)
 		return err
 	}
 	fsa.path = config.Path
 
 	entries, err := os.ReadDir(fsa.path)
 	if err != nil {
-		log.Errorf("fsBackend Init()- %v", err)
+		log.Errorf("Init() > ReadDir() error: %v", err)
 		return err
 	}
 
@@ -86,7 +86,7 @@ func (fsa *FsArchive) LoadJobData(job *schema.Job) (schema.JobData, error) {
 	filename := getPath(job, fsa.path, "data.json")
 	f, err := os.Open(filename)
 	if err != nil {
-		log.Errorf("fsBackend LoadJobData()- %v", err)
+		log.Errorf("LoadJobData() > open file error: %v", err)
 		return nil, err
 	}
 	defer f.Close()
@@ -104,11 +104,12 @@ func (fsa *FsArchive) LoadClusterCfg(name string) (*schema.Cluster, error) {
 
 	b, err := os.ReadFile(filepath.Join(fsa.path, name, "cluster.json"))
 	if err != nil {
-		log.Errorf("fsBackend LoadClusterCfg()- %v", err)
+		log.Errorf("LoadClusterCfg() > open file error: %v", err)
 		return &schema.Cluster{}, err
 	}
 	if config.Keys.Validate {
 		if err := schema.Validate(schema.ClusterCfg, bytes.NewReader(b)); err != nil {
+			log.Warnf("Validate cluster config: %v\n", err)
 			return &schema.Cluster{}, fmt.Errorf("Validate cluster config: %v\n", err)
 		}
 	}
@@ -121,13 +122,13 @@ func (fsa *FsArchive) Iter() <-chan *schema.JobMeta {
 	go func() {
 		clustersDir, err := os.ReadDir(fsa.path)
 		if err != nil {
-			log.Fatalf("Reading clusters failed: %s", err.Error())
+			log.Fatalf("Reading clusters failed @ cluster dirs: %s", err.Error())
 		}
 
 		for _, clusterDir := range clustersDir {
 			lvl1Dirs, err := os.ReadDir(filepath.Join(fsa.path, clusterDir.Name()))
 			if err != nil {
-				log.Fatalf("Reading jobs failed: %s", err.Error())
+				log.Fatalf("Reading jobs failed @ lvl1 dirs: %s", err.Error())
 			}
 
 			for _, lvl1Dir := range lvl1Dirs {
@@ -138,21 +139,21 @@ func (fsa *FsArchive) Iter() <-chan *schema.JobMeta {
 
 				lvl2Dirs, err := os.ReadDir(filepath.Join(fsa.path, clusterDir.Name(), lvl1Dir.Name()))
 				if err != nil {
-					log.Fatalf("Reading jobs failed: %s", err.Error())
+					log.Fatalf("Reading jobs failed @ lvl2 dirs: %s", err.Error())
 				}
 
 				for _, lvl2Dir := range lvl2Dirs {
 					dirpath := filepath.Join(fsa.path, clusterDir.Name(), lvl1Dir.Name(), lvl2Dir.Name())
 					startTimeDirs, err := os.ReadDir(dirpath)
 					if err != nil {
-						log.Fatalf("Reading jobs failed: %s", err.Error())
+						log.Fatalf("Reading jobs failed @ starttime dirs: %s", err.Error())
 					}
 
 					for _, startTimeDir := range startTimeDirs {
 						if startTimeDir.IsDir() {
 							job, err := loadJobMeta(filepath.Join(dirpath, startTimeDir.Name(), "meta.json"))
 							if err != nil {
-								log.Errorf("in %s: %s", filepath.Join(dirpath, startTimeDir.Name()), err.Error())
+								log.Errorf("error in %s: %s", filepath.Join(dirpath, startTimeDir.Name()), err.Error())
 							} else {
 								ch <- job
 							}
@@ -175,12 +176,15 @@ func (fsa *FsArchive) StoreJobMeta(jobMeta *schema.JobMeta) error {
 	}
 	f, err := os.Create(getPath(&job, fsa.path, "meta.json"))
 	if err != nil {
+		log.Error("Error while creating filepath for meta.json")
 		return err
 	}
 	if err := EncodeJobMeta(f, jobMeta); err != nil {
+		log.Error("Error while encoding job metadata to meta.json file")
 		return err
 	}
 	if err := f.Close(); err != nil {
+		log.Warn("Error while closing meta.json file")
 		return err
 	}
 
@@ -203,26 +207,38 @@ func (fsa *FsArchive) ImportJob(
 	}
 	dir := getPath(&job, fsa.path, "")
 	if err := os.MkdirAll(dir, 0777); err != nil {
+		log.Error("Error while creating job archive path")
 		return err
 	}
 
 	f, err := os.Create(path.Join(dir, "meta.json"))
 	if err != nil {
+		log.Error("Error while creating filepath for meta.json")
 		return err
 	}
 	if err := EncodeJobMeta(f, jobMeta); err != nil {
+		log.Error("Error while encoding job metadata to meta.json file")
 		return err
 	}
 	if err := f.Close(); err != nil {
+		log.Warn("Error while closing meta.json file")
 		return err
 	}
 
 	f, err = os.Create(path.Join(dir, "data.json"))
 	if err != nil {
+		log.Error("Error while creating filepath for data.json")
 		return err
 	}
 	if err := EncodeJobData(f, jobData); err != nil {
+		log.Error("Error while encoding job metricdata to data.json file")
 		return err
 	}
-	return f.Close()
+	if err := f.Close(); err != nil {
+		log.Warn("Error while closing data.json file")
+		return err
+	}
+
+	// no error: final return is nil
+	return nil
 }

pkg/archive/fsBackend_test.go

@@ -10,9 +10,14 @@ import (
 	"testing"
 	"time"
 
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
+func init() {
+	log.Init("info", true)
+}
+
 func TestInitEmptyPath(t *testing.T) {
 	var fsa FsArchive
 	err := fsa.Init(json.RawMessage("{\"kind\":\"../../test/archive\"}"))

pkg/archive/json.go

@@ -10,12 +10,14 @@ import (
 	"time"
 
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 )
 
 func DecodeJobData(r io.Reader, k string) (schema.JobData, error) {
 	data := cache.Get(k, func() (value interface{}, ttl time.Duration, size int) {
 		var d schema.JobData
 		if err := json.NewDecoder(r).Decode(&d); err != nil {
+			log.Warn("Error while decoding raw job data json")
 			return err, 0, 1000
 		}
 
@@ -23,6 +25,7 @@ func DecodeJobData(r io.Reader, k string) (schema.JobData, error) {
 	})
 
 	if err, ok := data.(error); ok {
+		log.Warn("Error in decoded job data set")
 		return nil, err
 	}
 
@@ -32,6 +35,7 @@ func DecodeJobData(r io.Reader, k string) (schema.JobData, error) {
 func DecodeJobMeta(r io.Reader) (*schema.JobMeta, error) {
 	var d schema.JobMeta
 	if err := json.NewDecoder(r).Decode(&d); err != nil {
+		log.Warn("Error while decoding raw job meta json")
 		return &d, err
 	}
 
@@ -43,6 +47,7 @@ func DecodeJobMeta(r io.Reader) (*schema.JobMeta, error) {
 func DecodeCluster(r io.Reader) (*schema.Cluster, error) {
 	var c schema.Cluster
 	if err := json.NewDecoder(r).Decode(&c); err != nil {
+		log.Warn("Error while decoding raw cluster json")
 		return &c, err
 	}
 
@@ -54,6 +59,7 @@ func DecodeCluster(r io.Reader) (*schema.Cluster, error) {
 func EncodeJobData(w io.Writer, d *schema.JobData) error {
 	// Sanitize parameters
 	if err := json.NewEncoder(w).Encode(d); err != nil {
+		log.Warn("Error while encoding new job data json")
 		return err
 	}
 
@@ -63,6 +69,7 @@ func EncodeJobData(w io.Writer, d *schema.JobData) error {
 func EncodeJobMeta(w io.Writer, d *schema.JobMeta) error {
 	// Sanitize parameters
 	if err := json.NewEncoder(w).Encode(d); err != nil {
+		log.Warn("Error while encoding new job meta json")
 		return err
 	}
 

pkg/archive/nodelist.go

@@ -64,7 +64,7 @@ type NLExprIntRange struct {
 
 func (nle NLExprIntRange) consume(input string) (next string, ok bool) {
 	if !nle.zeroPadded || nle.digits < 1 {
-		log.Error("node list: only zero-padded ranges are allowed")
+		log.Error("only zero-padded ranges are allowed")
 		return "", false
 	}
 
@@ -102,7 +102,7 @@ func ParseNodeList(raw string) (NodeList, error) {
 				i++
 			}
 			if i == len(raw) {
-				return nil, fmt.Errorf("node list: unclosed '['")
+				return nil, fmt.Errorf("ARCHIVE/NODELIST > unclosed '['")
 			}
 		} else if raw[i] == ',' {
 			rawterms = append(rawterms, raw[prevterm:i])
@@ -135,7 +135,7 @@ func ParseNodeList(raw string) (NodeList, error) {
 				end := strings.Index(rawterm[i:], "]")
 
 				if end == -1 {
-					return nil, fmt.Errorf("node list: unclosed '['")
+					return nil, fmt.Errorf("ARCHIVE/NODELIST > unclosed '['")
 				}
 
 				parts := strings.Split(rawterm[i+1:i+end], ",")
@@ -144,21 +144,21 @@ func ParseNodeList(raw string) (NodeList, error) {
 				for _, part := range parts {
 					minus := strings.Index(part, "-")
 					if minus == -1 {
-						return nil, fmt.Errorf("node list: no '-' found inside '[...]'")
+						return nil, fmt.Errorf("ARCHIVE/NODELIST > no '-' found inside '[...]'")
 					}
 
 					s1, s2 := part[0:minus], part[minus+1:]
 					if len(s1) != len(s2) || len(s1) == 0 {
-						return nil, fmt.Errorf("node list: %#v and %#v are not of equal length or of length zero", s1, s2)
+						return nil, fmt.Errorf("ARCHIVE/NODELIST > %v and %v are not of equal length or of length zero", s1, s2)
 					}
 
 					x1, err := strconv.ParseInt(s1, 10, 32)
 					if err != nil {
-						return nil, fmt.Errorf("node list: %w", err)
+						return nil, fmt.Errorf("ARCHIVE/NODELIST > could not parse int: %w", err)
 					}
 					x2, err := strconv.ParseInt(s2, 10, 32)
 					if err != nil {
-						return nil, fmt.Errorf("node list: %w", err)
+						return nil, fmt.Errorf("ARCHIVE/NODELIST > could not parse int: %w", err)
 					}
 
 					nles = append(nles, NLExprIntRange{
@@ -172,7 +172,7 @@ func ParseNodeList(raw string) (NodeList, error) {
 				exprs = append(exprs, nles)
 				i += end
 			} else {
-				return nil, fmt.Errorf("node list: invalid character: %#v", rune(c))
+				return nil, fmt.Errorf("ARCHIVE/NODELIST > invalid character: %#v", rune(c))
 			}
 		}
 		nl = append(nl, exprs)

pkg/log/log.go

@@ -12,8 +12,8 @@ import (
 )
 
 // Provides a simple way of logging with different levels.
-// Time/Data are not logged on purpose because systemd adds
+// Time/Date are not logged because systemd adds
-// them for us.
+// them for us (Default, can be changed by flag '--logdate true').
 //
 // Uses these prefixes: https://www.freedesktop.org/software/systemd/man/sd-daemon.html
 
@@ -22,6 +22,7 @@ var (
 	InfoWriter  io.Writer = os.Stderr
 	WarnWriter  io.Writer = os.Stderr
 	ErrWriter   io.Writer = os.Stderr
+	CritWriter  io.Writer = os.Stderr
 )
 
 var (
@@ -29,18 +30,24 @@ var (
 	InfoPrefix  string = "<6>[INFO]     "
 	WarnPrefix  string = "<4>[WARNING]  "
 	ErrPrefix   string = "<3>[ERROR]    "
+	CritPrefix  string = "<2>[CRITICAL] "
 )
 
 var (
-	DebugLog *log.Logger = log.New(DebugWriter, DebugPrefix, 0)
+	DebugLog *log.Logger
-	InfoLog  *log.Logger = log.New(InfoWriter, InfoPrefix, 0)
+	InfoLog  *log.Logger
-	WarnLog  *log.Logger = log.New(WarnWriter, WarnPrefix, 0)
+	WarnLog  *log.Logger
-	ErrLog   *log.Logger = log.New(ErrWriter, ErrPrefix, 0)
+	ErrLog   *log.Logger
+	CritLog  *log.Logger
 )
 
-func init() {
+/* CONFIG */
-	if lvl, ok := os.LookupEnv("LOGLEVEL"); ok {
+
+func Init(lvl string, logdate bool) {
 	switch lvl {
+	case "crit":
+		ErrWriter = io.Discard
+		fallthrough
 	case "err", "fatal":
 		WarnWriter = io.Discard
 		fallthrough
@@ -51,80 +58,126 @@ func init() {
 		DebugWriter = io.Discard
 	case "debug":
 		// Nothing to do...
+		break
 	default:
-			Warnf("environment variable LOGLEVEL has invalid value %#v", lvl)
+		fmt.Printf("pkg/log: Flag 'loglevel' has invalid value %#v\npkg/log: Will use default loglevel 'debug'\n", lvl)
+		//SetLogLevel("debug")
 	}
+
+	if !logdate {
+		DebugLog = log.New(DebugWriter, DebugPrefix, 0)
+		InfoLog = log.New(InfoWriter, InfoPrefix, log.Lshortfile)
+		WarnLog = log.New(WarnWriter, WarnPrefix, log.Lshortfile)
+		ErrLog = log.New(ErrWriter, ErrPrefix, log.Llongfile)
+		CritLog = log.New(CritWriter, CritPrefix, log.Llongfile)
+	} else {
+		DebugLog = log.New(DebugWriter, DebugPrefix, log.LstdFlags)
+		InfoLog = log.New(InfoWriter, InfoPrefix, log.LstdFlags|log.Lshortfile)
+		WarnLog = log.New(WarnWriter, WarnPrefix, log.LstdFlags|log.Lshortfile)
+		ErrLog = log.New(ErrWriter, ErrPrefix, log.LstdFlags|log.Llongfile)
+		CritLog = log.New(CritWriter, CritPrefix, log.LstdFlags|log.Llongfile)
 	}
 }
 
-func Debug(v ...interface{}) {
+/* PRINT */
-	if DebugWriter != io.Discard {
+
-		DebugLog.Print(v...)
+// Private helper
-	}
+func printStr(v ...interface{}) string {
-}
+	return fmt.Sprint(v...)
-
-func Info(v ...interface{}) {
-	if InfoWriter != io.Discard {
-		InfoLog.Print(v...)
-	}
 }
 
+// Uses Info() -> If errorpath required at some point:
+// Will need own writer with 'Output(2, out)' to correctly render path
 func Print(v ...interface{}) {
 	Info(v...)
 }
 
-func Warn(v ...interface{}) {
+func Debug(v ...interface{}) {
-	if WarnWriter != io.Discard {
+	DebugLog.Output(2, printStr(v...))
-		WarnLog.Print(v...)
 }
+
+func Info(v ...interface{}) {
+	InfoLog.Output(2, printStr(v...))
+}
+
+func Warn(v ...interface{}) {
+	WarnLog.Output(2, printStr(v...))
 }
 
 func Error(v ...interface{}) {
-	if ErrWriter != io.Discard {
+	ErrLog.Output(2, printStr(v...))
-		ErrLog.Print(v...)
-	}
 }
 
+// Writes panic stacktrace, but keeps application alive
+func Panic(v ...interface{}) {
+	ErrLog.Output(2, printStr(v...))
+	panic("Panic triggered ...")
+}
+
+func Crit(v ...interface{}) {
+	CritLog.Output(2, printStr(v...))
+}
+
+// Writes critical log, stops application
 func Fatal(v ...interface{}) {
-	Error(v...)
+	CritLog.Output(2, printStr(v...))
 	os.Exit(1)
 }
 
-func Debugf(format string, v ...interface{}) {
+/* PRINT FORMAT*/
-	if DebugWriter != io.Discard {
+
-		DebugLog.Printf(format, v...)
+// Private helper
-	}
+func printfStr(format string, v ...interface{}) string {
-}
+	return fmt.Sprintf(format, v...)
-
-func Infof(format string, v ...interface{}) {
-	if InfoWriter != io.Discard {
-		InfoLog.Printf(format, v...)
-	}
 }
 
+// Uses Infof() -> If errorpath required at some point:
+// Will need own writer with 'Output(2, out)' to correctly render path
 func Printf(format string, v ...interface{}) {
 	Infof(format, v...)
 }
 
-func Finfof(w io.Writer, format string, v ...interface{}) {
+func Debugf(format string, v ...interface{}) {
-	if w != io.Discard {
+	DebugLog.Output(2, printfStr(format, v...))
-		fmt.Fprintf(InfoWriter, InfoPrefix+format+"\n", v...)
 }
+
+func Infof(format string, v ...interface{}) {
+	InfoLog.Output(2, printfStr(format, v...))
 }
 
 func Warnf(format string, v ...interface{}) {
-	if WarnWriter != io.Discard {
+	WarnLog.Output(2, printfStr(format, v...))
-		WarnLog.Printf(format, v...)
-	}
 }
 
 func Errorf(format string, v ...interface{}) {
-	if ErrWriter != io.Discard {
+	ErrLog.Output(2, printfStr(format, v...))
-		ErrLog.Printf(format, v...)
-	}
 }
 
+// Writes panic stacktrace, but keeps application alive
+func Panicf(format string, v ...interface{}) {
+	ErrLog.Output(2, printfStr(format, v...))
+	panic("Panic triggered ...")
+}
+
+func Critf(format string, v ...interface{}) {
+	CritLog.Output(2, printfStr(format, v...))
+}
+
+// Writes crit log, stops application
 func Fatalf(format string, v ...interface{}) {
-	Errorf(format, v...)
+	CritLog.Output(2, printfStr(format, v...))
 	os.Exit(1)
 }
+
+/* SPECIAL */
+
+// func Finfof(w io.Writer, format string, v ...interface{}) {
+// 	if w != io.Discard {
+// 		if logDateTime {
+// 			currentTime := time.Now()
+// 			fmt.Fprintf(InfoWriter, currentTime.String()+InfoPrefix+format+"\n", v...)
+// 		} else {
+// 			fmt.Fprintf(InfoWriter, InfoPrefix+format+"\n", v...)
+// 		}
+// 	}
+// }

pkg/lrucache/cache.go

@@ -69,7 +69,7 @@ func (c *Cache) Get(key string, computeValue ComputeValue) interface{} {
 		if now.After(entry.expiration) {
 			if !c.evictEntry(entry) {
 				if entry.expiration.IsZero() {
-					panic("cache entry that shoud have been waited for could not be evicted.")
+					panic("LRUCACHE/CACHE > cache entry that shoud have been waited for could not be evicted.")
 				}
 				c.mutex.Unlock()
 				return entry.value
@@ -208,7 +208,7 @@ func (c *Cache) Keys(f func(key string, val interface{})) {
 	size := 0
 	for key, e := range c.entries {
 		if key != e.key {
-			panic("key mismatch")
+			panic("LRUCACHE/CACHE > key mismatch")
 		}
 
 		if now.After(e.expiration) {
@@ -219,13 +219,13 @@ func (c *Cache) Keys(f func(key string, val interface{})) {
 
 		if e.prev != nil {
 			if e.prev.next != e {
-				panic("list corrupted")
+				panic("LRUCACHE/CACHE > list corrupted")
 			}
 		}
 
 		if e.next != nil {
 			if e.next.prev != e {
-				panic("list corrupted")
+				panic("LRUCACHE/CACHE > list corrupted")
 			}
 		}
 
@@ -234,18 +234,18 @@ func (c *Cache) Keys(f func(key string, val interface{})) {
 	}
 
 	if size != c.usedmemory {
-		panic("size calculations failed")
+		panic("LRUCACHE/CACHE > size calculations failed")
 	}
 
 	if c.head != nil {
 		if c.tail == nil || c.head.prev != nil {
-			panic("head/tail corrupted")
+			panic("LRUCACHE/CACHE > head/tail corrupted")
 		}
 	}
 
 	if c.tail != nil {
 		if c.head == nil || c.tail.next != nil {
-			panic("head/tail corrupted")
+			panic("LRUCACHE/CACHE > head/tail corrupted")
 		}
 	}
 }
@@ -281,7 +281,7 @@ func (c *Cache) unlinkEntry(e *cacheEntry) {
 
 func (c *Cache) evictEntry(e *cacheEntry) bool {
 	if e.waitingForComputation != 0 {
-		// panic("cannot evict this entry as other goroutines need the value")
+		// panic("LRUCACHE/CACHE > cannot evict this entry as other goroutines need the value")
 		return false
 	}
 

pkg/schema/float.go

@@ -9,6 +9,8 @@ import (
 	"io"
 	"math"
 	"strconv"
+
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 )
 
 // A custom float type is used so that (Un)MarshalJSON and
@@ -43,6 +45,7 @@ func (f *Float) UnmarshalJSON(input []byte) error {
 
 	val, err := strconv.ParseFloat(s, 64)
 	if err != nil {
+		log.Warn("Error while parsing custom float")
 		return err
 	}
 	*f = Float(val)

pkg/schema/job.go

@@ -133,12 +133,12 @@ const (
 func (e *JobState) UnmarshalGQL(v interface{}) error {
 	str, ok := v.(string)
 	if !ok {
-		return fmt.Errorf("enums must be strings")
+		return fmt.Errorf("SCHEMA/JOB > enums must be strings")
 	}
 
 	*e = JobState(str)
 	if !e.Valid() {
-		return errors.New("invalid job state")
+		return errors.New("SCHEMA/JOB > invalid job state")
 	}
 
 	return nil

pkg/schema/metrics.go

@@ -92,12 +92,12 @@ func (e *MetricScope) Max(other MetricScope) MetricScope {
 func (e *MetricScope) UnmarshalGQL(v interface{}) error {
 	str, ok := v.(string)
 	if !ok {
-		return fmt.Errorf("enums must be strings")
+		return fmt.Errorf("SCHEMA/METRICS > enums must be strings")
 	}
 
 	*e = MetricScope(str)
 	if !e.Valid() {
-		return fmt.Errorf("%s is not a valid MetricScope", str)
+		return fmt.Errorf("SCHEMA/METRICS > %s is not a valid MetricScope", str)
 	}
 	return nil
 }
@@ -303,7 +303,7 @@ func (jm *JobMetric) AddPercentiles(ps []int) bool {
 
 	for _, p := range ps {
 		if p < 1 || p > 99 {
-			panic("invalid percentile")
+			panic("SCHEMA/METRICS > invalid percentile")
 		}
 
 		if _, ok := jm.StatisticsSeries.Percentiles[p]; ok {

pkg/schema/validate.go

@@ -45,21 +45,22 @@ func Validate(k Kind, r io.Reader) (err error) {
 	case Config:
 		s, err = jsonschema.Compile("embedfs://config.schema.json")
 	default:
-		return fmt.Errorf("unkown schema kind ")
+		return fmt.Errorf("SCHEMA/VALIDATE > unkown schema kind: %#v", k)
 	}
 
 	if err != nil {
+		log.Errorf("Error while compiling json schema for kind '%#v'", k)
 		return err
 	}
 
 	var v interface{}
 	if err := json.NewDecoder(r).Decode(&v); err != nil {
-		log.Errorf("schema.Validate() - Failed to decode %v", err)
+		log.Warnf("Error while decoding raw json schema: %#v", err)
 		return err
 	}
 
 	if err = s.Validate(v); err != nil {
-		return fmt.Errorf("%#v", err)
+		return fmt.Errorf("SCHEMA/VALIDATE > %#v", err)
 	}
 
 	return nil

pkg/units/units.go

@@ -192,7 +192,7 @@ func GetUnitUnitFactor(in Unit, out Unit) (func(value interface{}) interface{},
 	} else if in.getMeasure() == TemperatureF && out.getMeasure() == TemperatureC {
 		return convertTempF2TempC, nil
 	} else if in.getMeasure() != out.getMeasure() || in.getUnitDenominator() != out.getUnitDenominator() {
-		return func(value interface{}) interface{} { return 1.0 }, fmt.Errorf("invalid measures in in and out Unit")
+		return func(value interface{}) interface{} { return 1.0 }, fmt.Errorf("UNITS/UNITS > invalid measures in in and out Unit")
 	}
 	return GetPrefixPrefixFactor(in.getPrefix(), out.getPrefix()), nil
 }

startDemo.sh

@@ -11,7 +11,6 @@ else
     tar xJf job-archive-dev.tar.xz
     rm ./job-archive-dev.tar.xz
 
-    touch ./job.db
     cd ../web/frontend
     yarn install
     yarn build
@@ -21,5 +20,6 @@ else
     cp ./docs/config.json config.json
     go build ./cmd/cc-backend
 
+    ./cc-backend --migrate-db
     ./cc-backend --server --dev --init-db --add-user demo:admin:AdminDev
 fi

test/integration_test.go

@@ -20,6 +20,7 @@ import (
 	"github.com/ClusterCockpit/cc-backend/internal/metricdata"
 	"github.com/ClusterCockpit/cc-backend/internal/repository"
 	"github.com/ClusterCockpit/cc-backend/pkg/archive"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	"github.com/gorilla/mux"
 
@@ -245,6 +246,7 @@ func setup(t *testing.T) *api.RestApi {
 		]
 	}`
 
+	log.Init("info", true)
 	tmpdir := t.TempDir()
 	jobarchive := filepath.Join(tmpdir, "job-archive")
 	if err := os.Mkdir(jobarchive, 0777); err != nil {
@@ -267,11 +269,7 @@ func setup(t *testing.T) *api.RestApi {
 		t.Fatal(err)
 	}
 	dbfilepath := filepath.Join(tmpdir, "test.db")
-	f, err := os.Create(dbfilepath)
+	repository.MigrateDB("sqlite3", dbfilepath)
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
 
 	cfgFilePath := filepath.Join(tmpdir, "config.json")
 	if err := os.WriteFile(cfgFilePath, []byte(testconfig), 0666); err != nil {
@@ -292,10 +290,6 @@ func setup(t *testing.T) *api.RestApi {
 		t.Fatal(err)
 	}
 
-	if _, err := db.DB.Exec(repository.JobsDBSchema); err != nil {
-		t.Fatal(err)
-	}
-
 	jobRepo := repository.GetJobRepository()
 	resolver := &graph.Resolver{DB: db.DB, Repo: jobRepo}
 

web/frontend/src/Header.svelte

@@ -1,7 +1,7 @@
 <script>
     import { Icon, Button, InputGroup, Input, Collapse,
              Navbar, NavbarBrand, Nav, NavItem, NavLink, NavbarToggler,
-             Dropdown, DropdownToggle, DropdownMenu, DropdownItem } from 'sveltestrap'
+             Dropdown, DropdownToggle, DropdownMenu, DropdownItem, InputGroupText } from 'sveltestrap'
 
     export let username // empty string if auth. is disabled, otherwise the username as string
     export let authlevel // integer
@@ -93,6 +93,7 @@
             <InputGroup>
                 <Input type="text" placeholder={(authlevel >= 4) ? "Search jobId / username" : "Search jobId"} name="searchId"/>
                 <Button outline type="submit"><Icon name="search"/></Button>
+                <InputGroupText style="cursor:help;" title={isAdmin ? "Example: 'projectId:a100cd', Types are: jobId | jobName | projectId | username" | "name" : "Example: 'jobName:myjob', Types are jobId | jobName"}><Icon name="info-circle"/></InputGroupText>
             </InputGroup>
         </form>
         {#if username}

web/frontend/src/List.root.svelte

@@ -20,6 +20,7 @@
     const stats = operationStore(`query($filter: [JobFilter!]!) {
         rows: jobsStatistics(filter: $filter, groupBy: ${type}) {
             id
+            name
             totalJobs
             totalWalltime
             totalCoreHours
@@ -93,6 +94,15 @@
                     <Icon name="sort-numeric-down" />
                 </Button>
             </th>
+            {#if type == 'USER'}
+                <th scope="col">
+                    Name
+                    <Button color="{sorting.field == 'name' ? 'primary' : 'light'}"
+                        size="sm" on:click={e => changeSorting(e, 'name')}>
+                        <Icon name="sort-numeric-down" />
+                    </Button>
+                </th>
+            {/if}
             <th scope="col">
                 Total Jobs
                 <Button color="{sorting.field == 'totalJobs' ? 'primary' : 'light'}"
@@ -137,6 +147,9 @@
                             {row.id}
                         {/if}
                     </td>
+                    {#if type == 'USER'}
+                        <td>{row?.name ? row.name : ''}</td>
+                    {/if}
                     <td>{row.totalJobs}</td>
                     <td>{row.totalWalltime}</td>
                     <td>{row.totalCoreHours}</td>

web/frontend/src/filters/Filters.svelte

@@ -45,6 +45,7 @@
         arrayJobId: filterPresets.arrayJobId || null,
         user:       filterPresets.user       || '',
         project:    filterPresets.project    || '',
+        jobName:    filterPresets.jobName    || '',
 
         numNodes:         filterPresets.numNodes         || { from: null, to: null },
         numHWThreads:     filterPresets.numHWThreads     || { from: null, to: null },
@@ -94,6 +95,8 @@
             items.push({ user: { [filters.userMatch]: filters.user } })
         if (filters.project)
             items.push({ project: { [filters.projectMatch]: filters.project } })
+        if (filters.jobName)
+            items.push({ jobName: { contains: filters.jobName } })
         for (let stat of filters.stats)
             items.push({ [stat.field]: { from: stat.from, to: stat.to } })
 
@@ -123,12 +126,19 @@
             opts.push(`numNodes=${filters.numNodes.from}-${filters.numNodes.to}`)
         if (filters.numAccelerators.from && filters.numAccelerators.to)
             opts.push(`numAccelerators=${filters.numAccelerators.from}-${filters.numAccelerators.to}`)
-        if (filters.user)
+        if (filters.user.length != 0)
+            if (filters.userMatch != 'in') {
                 opts.push(`user=${filters.user}`)
+            } else {
+                for (let singleUser of filters.user)
+                    opts.push(`user=${singleUser}`)
+            }
         if (filters.userMatch != 'contains')
             opts.push(`userMatch=${filters.userMatch}`)
         if (filters.project)
             opts.push(`project=${filters.project}`)
+        if (filters.jobName)
+            opts.push(`jobName=${filters.jobName}`)
         if (filters.projectMatch != 'contains')
             opts.push(`projectMatch=${filters.projectMatch}`)
 

web/frontend/src/joblist/JobInfo.svelte

@@ -52,7 +52,10 @@
         {/if}
         {#if job.project && job.project != 'no project'}
             <br/>
-            <Icon name="people-fill"/> {job.project}
+            <Icon name="people-fill"/> 
+            <a class="fst-italic" href="/monitoring/jobs/?project={job.project}&projectMatch=eq" target="_blank">
+                {scrambleNames ? scramble(job.project) : job.project}
+            </a>
         {/if}
     </p>
 

web/frontend/src/joblist/JobList.svelte

@@ -33,7 +33,7 @@
     query($filter: [JobFilter!]!, $sorting: OrderByInput!, $paging: PageRequest! ){
         jobs(filter: $filter, order: $sorting, page: $paging) {
             items {
-                id, jobId, user, project, cluster, subCluster, startTime,
+                id, jobId, user, project, jobName, cluster, subCluster, startTime,
                 duration, numNodes, numHWThreads, numAcc, walltime,
                 SMT, exclusive, partition, arrayJobId,
                 monitoringStatus, state,

web/frontend/yarn.lock

@@ -230,7 +230,7 @@ commondir@^1.0.1:
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
-  integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
+  integrity sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==
 
 deepmerge@^4.2.2:
   version "4.2.2"
@@ -365,9 +365,9 @@ merge-stream@^2.0.0:
   integrity sha512-abv/qOcuPfk3URPfDzmZU1LKmuw8kT+0nIHvKrKgFrwifol/doWcdA4ZqsWQ8ENrFKkd67Mfpo/LovbIUsbt3w==
 
 minimatch@^3.0.4:
-  version "3.0.4"
+  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.1.2.tgz#19cd194bfd3e428f049a70817c038d89ab4be35b"
-  integrity sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==
+  integrity sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==
   dependencies:
     brace-expansion "^1.1.7"
 

web/web.go

@@ -24,6 +24,7 @@ var frontendFiles embed.FS
 func ServeFiles() http.Handler {
 	publicFiles, err := fs.Sub(frontendFiles, "frontend/public")
 	if err != nil {
+		log.Fatalf("WEB/WEB > cannot find frontend public files")
 		panic(err)
 	}
 	return http.FileServer(http.FS(publicFiles))
@@ -47,6 +48,7 @@ func init() {
 		templates[strings.TrimPrefix(path, "templates/")] = template.Must(template.Must(base.Clone()).ParseFS(templateFiles, path))
 		return nil
 	}); err != nil {
+		log.Fatalf("WEB/WEB > cannot find frontend template files")
 		panic(err)
 	}
 
@@ -79,6 +81,7 @@ type Page struct {
 func RenderTemplate(rw http.ResponseWriter, r *http.Request, file string, page *Page) {
 	t, ok := templates[file]
 	if !ok {
+		log.Fatalf("WEB/WEB > template '%s' not found", file)
 		panic("template not found")
 	}
 
@@ -88,8 +91,8 @@ func RenderTemplate(rw http.ResponseWriter, r *http.Request, file string, page *
 		}
 	}
 
-	log.Infof("%v\n", page.Config)
+	log.Infof("Page config : %v\n", page.Config)
 	if err := t.Execute(rw, page); err != nil {
-		log.Errorf("template error: %s", err.Error())
+		log.Errorf("Template error: %s", err.Error())
 	}
 }