slight change to job structure

api/rest.go

@@ -4,8 +4,12 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"io"
 	"log"
 	"net/http"
+	"os"
+	"path/filepath"
+	"time"
 
 	"github.com/ClusterCockpit/cc-jobarchive/config"
 	"github.com/ClusterCockpit/cc-jobarchive/graph"
@@ -20,6 +24,7 @@ type RestApi struct {
 	DB              *sqlx.DB
 	Resolver        *graph.Resolver
 	AsyncArchiving  bool
+	MachineStateDir string
 }
 
 func (api *RestApi) MountRoutes(r *mux.Router) {
@@ -29,6 +34,9 @@ func (api *RestApi) MountRoutes(r *mux.Router) {
 
 	r.HandleFunc("/api/jobs/{id}", api.getJob).Methods(http.MethodGet)
 	r.HandleFunc("/api/jobs/tag_job/{id}", api.tagJob).Methods(http.MethodPost, http.MethodPatch)
+
+	r.HandleFunc("/api/machine_state/{cluster}/{host}", api.getMachineState).Methods(http.MethodGet)
+	r.HandleFunc("/api/machine_state/{cluster}/{host}", api.putMachineState).Methods(http.MethodPut, http.MethodPost)
 }
 
 type StartJobApiRespone struct {
@@ -150,12 +158,17 @@ func (api *RestApi) startJob(rw http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	req.RawResources, err = json.Marshal(req.Resources)
+	job := schema.Job{
+		BaseJob:   req.BaseJob,
+		StartTime: time.Unix(req.StartTime, 0),
+	}
+
+	job.RawResources, err = json.Marshal(req.Resources)
 	if err != nil {
 		log.Fatal(err)
 	}
 
-	res, err := api.DB.NamedExec(schema.JobInsertStmt, req)
+	res, err := api.DB.NamedExec(schema.JobInsertStmt, job)
 	if err != nil {
 		http.Error(rw, err.Error(), http.StatusInternalServerError)
 		return
@@ -278,3 +291,47 @@ func (api *RestApi) stopJob(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)
+		return
+	}
+
+	vars := mux.Vars(r)
+	cluster := vars["cluster"]
+	host := vars["host"]
+	dir := filepath.Join(api.MachineStateDir, cluster)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		http.Error(rw, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	filename := filepath.Join(dir, fmt.Sprintf("%s.json", host))
+	f, err := os.Create(filename)
+	if err != nil {
+		http.Error(rw, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	defer f.Close()
+
+	if _, err := io.Copy(f, r.Body); err != nil {
+		http.Error(rw, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	rw.WriteHeader(http.StatusCreated)
+}
+
+func (api *RestApi) getMachineState(rw http.ResponseWriter, r *http.Request) {
+	if api.MachineStateDir == "" {
+		http.Error(rw, "not enabled", http.StatusNotFound)
+		return
+	}
+
+	vars := mux.Vars(r)
+	filename := filepath.Join(api.MachineStateDir, vars["cluster"], fmt.Sprintf("%s.json", vars["host"]))
+
+	// Sets the content-type and 'Last-Modified' Header and so on automatically
+	http.ServeFile(rw, r, filename)
+}

init-db.go

@@ -185,14 +185,19 @@ func loadJob(tx *sqlx.Tx, stmt *sqlx.NamedStmt, tags map[string]int64, path stri
 	}
 	defer f.Close()
 
-	var job schema.JobMeta = schema.JobMeta{BaseJob: schema.JobDefaults}
-	if err := json.NewDecoder(bufio.NewReader(f)).Decode(&job); err != nil {
+	var jobMeta schema.JobMeta = schema.JobMeta{BaseJob: schema.JobDefaults}
+	if err := json.NewDecoder(bufio.NewReader(f)).Decode(&jobMeta); err != nil {
 		return err
 	}
 
+	job := schema.Job{
+		BaseJob:   jobMeta.BaseJob,
+		StartTime: time.Unix(jobMeta.StartTime, 0),
+	}
+
 	// TODO: Other metrics...
-	job.FlopsAnyAvg = loadJobStat(&job, "flops_any")
-	job.MemBwAvg = loadJobStat(&job, "mem_bw")
+	job.FlopsAnyAvg = loadJobStat(&jobMeta, "flops_any")
+	job.MemBwAvg = loadJobStat(&jobMeta, "mem_bw")
 
 	job.RawResources, err = json.Marshal(job.Resources)
 	if err != nil {

schema/job.go

@@ -8,6 +8,8 @@ import (
 	"time"
 )
 
+// Common subset of Job and JobMeta. Use one of those, not
+// this type directly.
 type BaseJob struct {
 	ID               int64       `json:"id" db:"id"`
 	JobID            int64       `json:"jobId" db:"job_id"`
@@ -25,10 +27,15 @@ type BaseJob struct {
 	State            JobState    `json:"jobState" db:"job_state"`
 	Duration         int32       `json:"duration" db:"duration"`
 	Tags             []*Tag      `json:"tags"`
-	RawResources     []byte      `json:"-" db:"resources"`
-	Resources        []Resource  `json:"resources"`
+	Resources        []*Resource `json:"resources"`
 	MetaData         interface{} `json:"metaData" db:"meta_data"`
+}
 
+// This type is used as the GraphQL interface and using sqlx as a table row.
+type Job struct {
+	BaseJob
+	RawResources     []byte    `json:"-" db:"resources"`
+	StartTime        time.Time `json:"startTime" db:"start_time"`
 	MemUsedMax       float64   `json:"-" db:"mem_used_max"`
 	FlopsAnyAvg      float64   `json:"-" db:"flops_any_avg"`
 	MemBwAvg         float64   `json:"-" db:"mem_bw_avg"`
@@ -39,9 +46,13 @@ type BaseJob struct {
 	FileDataVolTotal float64   `json:"-" db:"file_data_vol_total"`
 }
 
+// When reading from the database or sending data via GraphQL, the start time can be in the much more
+// convenient time.Time type. In the `meta.json` files, the start time is encoded as a unix epoch timestamp.
+// This is why there is this struct, which contains all fields from the regular job struct, but "overwrites"
+// the StartTime field with one of type int64.
 type JobMeta struct {
 	BaseJob
-	StartTime  int64                    `json:"startTime" db:"start_time"`
+	StartTime  int64                    `json:"startTime"`
 	Statistics map[string]JobStatistics `json:"statistics,omitempty"`
 }
 
@@ -52,9 +63,9 @@ var JobDefaults BaseJob = BaseJob{
 }
 
 var JobColumns []string = []string{
-	"id", "job_id", "user", "project", "cluster", "partition", "array_job_id", "num_nodes",
-	"num_hwthreads", "num_acc", "exclusive", "monitoring_status", "smt", "job_state",
-	"duration", "resources", "meta_data",
+	"job.id", "job.job_id", "job.user", "job.project", "job.cluster", "job.start_time", "job.partition", "job.array_job_id", "job.num_nodes",
+	"job.num_hwthreads", "job.num_acc", "job.exclusive", "job.monitoring_status", "job.smt", "job.job_state",
+	"job.duration", "job.resources", "job.meta_data",
 }
 
 const JobInsertStmt string = `INSERT INTO job (
@@ -67,11 +78,6 @@ const JobInsertStmt string = `INSERT INTO job (
 	:mem_used_max, :flops_any_avg, :mem_bw_avg, :load_avg, :net_bw_avg, :net_data_vol_total, :file_bw_avg, :file_data_vol_total
 );`
 
-type Job struct {
-	BaseJob
-	StartTime time.Time `json:"startTime" db:"start_time"`
-}
-
 type Scannable interface {
 	StructScan(dest interface{}) error
 }

schema/metrics.go

@@ -5,14 +5,14 @@ import (
 	"io"
 )
 
-type JobData map[string]map[string]*JobMetric
+type JobData map[string]map[MetricScope]*JobMetric
 
 type JobMetric struct {
 	Unit             string       `json:"unit"`
 	Scope            MetricScope  `json:"scope"`
 	Timestep         int          `json:"timestep"`
 	Series           []Series     `json:"series"`
-	StatsSeries *StatsSeries `json:"statisticsSeries,omitempty"`
+	StatisticsSeries *StatsSeries `json:"statisticsSeries"`
 }
 
 type Series struct {
@@ -29,9 +29,9 @@ type MetricStatistics struct {
 }
 
 type StatsSeries struct {
-	Mean        []Float         `json:"mean,omitempty"`
-	Min         []Float         `json:"min,omitempty"`
-	Max         []Float         `json:"max,omitempty"`
+	Mean        []Float         `json:"mean"`
+	Min         []Float         `json:"min"`
+	Max         []Float         `json:"max"`
 	Percentiles map[int][]Float `json:"percentiles,omitempty"`
 }
 
@@ -41,8 +41,25 @@ const (
 	MetricScopeNode     MetricScope = "node"
 	MetricScopeSocket   MetricScope = "socket"
 	MetricScopeCpu      MetricScope = "cpu"
+	MetricScopeHWThread MetricScope = "hwthread"
 )
 
+var metricScopeGranularity map[MetricScope]int = map[MetricScope]int{
+	MetricScopeNode:     1,
+	MetricScopeSocket:   2,
+	MetricScopeCpu:      3,
+	MetricScopeHWThread: 4,
+}
+
+func (e *MetricScope) MaxGranularity(other MetricScope) MetricScope {
+	a := metricScopeGranularity[*e]
+	b := metricScopeGranularity[other]
+	if a < b {
+		return *e
+	}
+	return other
+}
+
 func (e *MetricScope) UnmarshalGQL(v interface{}) error {
 	str, ok := v.(string)
 	if !ok {
@@ -50,7 +67,7 @@ func (e *MetricScope) UnmarshalGQL(v interface{}) error {
 	}
 
 	*e = MetricScope(str)
-	if *e != "node" && *e != "socket" && *e != "cpu" {
+	if _, ok := metricScopeGranularity[*e]; !ok {
 		return fmt.Errorf("%s is not a valid MetricScope", str)
 	}
 	return nil

server.go

@@ -6,7 +6,9 @@ import (
 	"fmt"
 	"log"
 	"net/http"
+	"net/url"
 	"os"
+	"strconv"
 
 	"github.com/99designs/gqlgen/graphql/handler"
 	"github.com/99designs/gqlgen/graphql/playground"
@@ -60,6 +62,9 @@ type ProgramConfig struct {
 	// If overwriten, at least all the options in the defaults below must
 	// be provided! Most options here can be overwritten by the user.
 	UiDefaults map[string]interface{} `json:"ui-defaults"`
+
+	// Where to store MachineState files
+	MachineStateDir string `json:"machine-state-dir"`
 }
 
 var programConfig ProgramConfig = ProgramConfig{
@@ -95,6 +100,7 @@ var programConfig ProgramConfig = ProgramConfig{
 		"plot_view_showRoofline":             true,
 		"plot_view_showStatTable":            true,
 	},
+	MachineStateDir: "./var/machine-state",
 }
 
 func main() {
@@ -180,6 +186,8 @@ func main() {
 	api := &api.RestApi{
 		DB:              db,
 		AsyncArchiving:  programConfig.AsyncArchiving,
+		Resolver:        resolver,
+		MachineStateDir: programConfig.MachineStateDir,
 	}
 
 	handleGetLogin := func(rw http.ResponseWriter, r *http.Request) {
@@ -255,18 +263,9 @@ func main() {
 }
 
 func monitoringRoutes(router *mux.Router, resolver *graph.Resolver) {
-	router.HandleFunc("/monitoring/jobs/", func(rw http.ResponseWriter, r *http.Request) {
-		conf, err := config.GetUIConfig(r)
-		if err != nil {
-			http.Error(rw, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
+	buildFilterPresets := func(query url.Values) map[string]interface{} {
 		filterPresets := map[string]interface{}{}
-		query := r.URL.Query()
-		if query.Get("tag") != "" {
-			filterPresets["tag"] = query.Get("tag")
-		}
+
 		if query.Get("cluster") != "" {
 			filterPresets["cluster"] = query.Get("cluster")
 		}
@@ -276,17 +275,32 @@ func monitoringRoutes(router *mux.Router, resolver *graph.Resolver) {
 		if query.Get("state") != "" && schema.JobState(query.Get("state")).Valid() {
 			filterPresets["state"] = query.Get("state")
 		}
-		if query.Get("from") != "" && query.Get("to") != "" {
-			filterPresets["startTime"] = map[string]string{
-				"from": query.Get("from"),
-				"to":   query.Get("to"),
+		if rawtags, ok := query["tag"]; ok {
+			tags := make([]int, len(rawtags))
+			for i, tid := range rawtags {
+				var err error
+				tags[i], err = strconv.Atoi(tid)
+				if err != nil {
+					tags[i] = -1
 				}
 			}
+			filterPresets["tags"] = tags
+		}
+
+		return filterPresets
+	}
+
+	router.HandleFunc("/monitoring/jobs/", func(rw http.ResponseWriter, r *http.Request) {
+		conf, err := config.GetUIConfig(r)
+		if err != nil {
+			http.Error(rw, err.Error(), http.StatusInternalServerError)
+			return
+		}
 
 		templates.Render(rw, r, "monitoring/jobs/", &templates.Page{
 			Title:         "Jobs - ClusterCockpit",
 			Config:        conf,
-			FilterPresets: filterPresets,
+			FilterPresets: buildFilterPresets(r.URL.Query()),
 		})
 	})
 
@@ -342,7 +356,8 @@ func monitoringRoutes(router *mux.Router, resolver *graph.Resolver) {
 		templates.Render(rw, r, "monitoring/user/", &templates.Page{
 			Title:         fmt.Sprintf("User %s - ClusterCockpit", id),
 			Config:        conf,
-			Infos:  map[string]interface{}{"userId": id},
+			Infos:         map[string]interface{}{"username": id},
+			FilterPresets: buildFilterPresets(r.URL.Query()),
 		})
 	})