Merge branch 'master' into add-influxdb2-client

2025-11-04 01:25:06 +01:00 · 2022-03-22 11:10:32 +01:00
parent 830019e67f 31f31fcece
commit 2811136fd4
33 changed files with 2194 additions and 955 deletions
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,5 +14,4 @@ jobs:
        run: |
          go build ./...
          go vet ./...
-          go test  .
-          env BASEPATH="../" go test  ./repository
+          go test ./...
--- a/README.md
+++ b/README.md
@@ -1,10 +1,38 @@
-# ClusterCockpit with a Golang backend
+# ClusterCockpit REST and GraphQL API backend

 [![Build](https://github.com/ClusterCockpit/cc-backend/actions/workflows/test.yml/badge.svg)](https://github.com/ClusterCockpit/cc-backend/actions/workflows/test.yml)

-Create your job-archive accoring to [this specification](https://github.com/ClusterCockpit/cc-specifications). At least one cluster with a valid `cluster.json` file is required. Having no jobs in the job-archive at all is fine. You may use the sample job-archive available for download [in cc-docker/develop](https://github.com/ClusterCockpit/cc-docker/tree/develop).
+This is a Golang backend implementation for a REST and GraphQL API according to the [ClusterCockpit specifications](https://github.com/ClusterCockpit/cc-specifications).
+It also includes a web interface for ClusterCockpit based on the components implemented in
+[cc-frontend](https://github.com/ClusterCockpit/cc-frontend), which is included as a git submodule.
+This implementation replaces the previous PHP Symfony based ClusterCockpit web-interface.

-### Run server
+## Overview
+
+This is a golang web backend for the ClusterCockpit job-specific performance monitoring framework.
+It provides a REST API for integrating ClusterCockpit with a HPC cluster batch system and external analysis scripts.
+Data exchange between the web frontend and backend is based on a GraphQL API.
+The web frontend is also served by the backend using [Svelte](https://svelte.dev/) components implemented in [cc-frontend](https://github.com/ClusterCockpit/cc-frontend).
+Layout and styling is based on [Bootstrap 5](https://getbootstrap.com/) using [Bootstrap Icons](https://icons.getbootstrap.com/).
+The backend uses [SQLite 3](https://sqlite.org/) as relational SQL database by default. It can optionally use a MySQL/MariaDB database server.
+Finished batch jobs are stored in a so called job archive following [this specification](https://github.com/ClusterCockpit/cc-specifications/tree/master/job-archive).
+The backend supports authentication using local accounts or an external LDAP directory.
+Authorization for APIs is implemented using [JWT](https://jwt.io/) tokens created with  public/private key encryption.
+
+## Demo Setup
+
+We provide a shell skript that downloads demo data and automatically builds and starts cc-backend.
+You need `wget`, `go`, and `yarn` in your path to start the demo. The demo will download 32MB of data (223MB on disk).
+
+```sh
+# The frontend is a submodule, so use `--recursive`
+git clone --recursive git@github.com:ClusterCockpit/cc-backend.git
+
+./startDemo.sh
+```
+You can access the web interface at http://localhost:8080. Credentials for login: `demo:AdminDev`. Please note that some views do not work without a metric backend (e.g., the Systems view).
+
+## Howto Build and Run

 ```sh
 # The frontend is a submodule, so use `--recursive`
@@ -41,22 +69,39 @@ vim ./.env
 # Show other options:
 ./cc-backend --help
 ```
+### Run as systemd daemon

-In order to run this program as a deamon, look at [utils/systemd/README.md](./utils/systemd/README.md) where a systemd unit file and more explanation is provided.
+In order to run this program as a daemon, look at [utils/systemd/README.md](./utils/systemd/README.md) where a systemd unit file and more explanation is provided.
+
+## Configuration and Setup
+
+cc-backend can be used as a local web-interface for an existing job archive or
+as a general web-interface server for a live ClusterCockpit Monitoring
+framework.
+
+Create your job-archive according to [this specification](https://github.com/ClusterCockpit/cc-specifications). At least
+one cluster with a valid `cluster.json` file is required. Having no jobs in the
+job-archive at all is fine. You may use the sample job-archive available for
+download [in cc-docker/develop](https://github.com/ClusterCockpit/cc-docker/tree/develop).

 ### Configuration

-A config file in the JSON format can be provided using `--config` to override the defaults. Look at the beginning of `server.go` for the defaults and consequently the format of the configuration file.
+A config file in the JSON format can be provided using `--config` to override the defaults.
+Look at the beginning of `server.go` for the defaults and consequently the format of the configuration file.

 ### Update GraphQL schema

-This project uses [gqlgen](https://github.com/99designs/gqlgen) for the GraphQL API. The schema can be found in `./graph/schema.graphqls`. After changing it, you need to run `go run github.com/99designs/gqlgen` which will update `graph/model`. In case new resolvers are needed, they will be inserted into `graph/schema.resolvers.go`, where you will need to implement them.
+This project uses [gqlgen](https://github.com/99designs/gqlgen) for the GraphQL
+API. The schema can be found in `./graph/schema.graphqls`. After changing it,
+you need to run `go run github.com/99designs/gqlgen` which will update
+`graph/model`. In case new resolvers are needed, they will be inserted into
+`graph/schema.resolvers.go`, where you will need to implement them.

-### Project Structure
+## Project Structure

 - `api/` contains the REST API. The routes defined there should be called whenever a job starts/stops. The API is documented in the OpenAPI 3.0 format in [./api/openapi.yaml](./api/openapi.yaml).
 - `auth/` is where the (optional) authentication middleware can be found, which adds the currently authenticated user to the request context. The `user` table is created and managed here as well.
-  - `auth/ldap.go` contains everything to do with automatically syncing and authenticating users form an LDAP server. 
+  - `auth/ldap.go` contains everything to do with automatically syncing and authenticating users form an LDAP server.
 - `config` handles the `cluster.json` files and the user-specific configurations (changeable via GraphQL) for the Web-UI such as the selected metrics etc.
 - `frontend` is a submodule, this is where the Svelte based frontend resides.
 - `graph/generated` should *not* be touched.
@@ -68,24 +113,15 @@ This project uses [gqlgen](https://github.com/99designs/gqlgen) for the GraphQL
  - `metricdata/archive.go` provides functions for fetching metrics from the job-archive and archiving a job to the job-archive.
  - `metricdata/cc-metric-store.go` contains an implementation of the `MetricDataRepository` interface which can fetch data from an [cc-metric-store](https://github.com/ClusterCockpit/cc-metric-store)
  - `metricdata/influxdb-v2` contains an implementation of the `MetricDataRepository` interface which can fetch data from an InfluxDBv2 database. It is currently disabled and out of date and can not be used as of writing.
+- `repository/` all SQL related stuff.
+- `repository/init.go` initializes the `job` (and `tag` and `jobtag`) table if the `--init-db` flag is provided. Not only is the table created in the correct schema, but the job-archive is traversed as well.
 - `schema/` contains type definitions used all over this project extracted in this package as Go disallows cyclic dependencies between packages.
  - `schema/float.go` contains a custom `float64` type which overwrites JSON and GraphQL Marshaling/Unmarshalling. This is needed because a regular optional `Float` in GraphQL will map to `*float64` types in Go. Wrapping every single metric value in an allocation would be a lot of overhead.
  - `schema/job.go` provides the types representing a job and its resources. Those can be used as type for a `meta.json` file and/or a row in the `job` table.
 - `templates/` is mostly full of HTML templates and a small helper go module.
 - `utils/systemd` describes how to deploy/install this as a systemd service
- `utils/` is mostly outdated. Look at the [cc-util repo](https://github.com/ClusterCockpit/cc-util) for more up-to-date scripts.
+- `test/` rudimentery tests.
+- `utils/`
 - `.env` *must* be changed before you deploy this. It contains a Base64 encoded [Ed25519](https://en.wikipedia.org/wiki/EdDSA) key-pair, the secret used for sessions and the password to the LDAP server if LDAP authentication is enabled.
 - `gqlgen.yml` configures the behaviour and generation of [gqlgen](https://github.com/99designs/gqlgen).
- `init-db.go` initializes the `job` (and `tag` and `jobtag`) table if the `--init-db` flag is provided. Not only is the table created in the correct schema, but the job-archive is traversed as well.
 - `server.go` contains the main function and starts the actual http server.
-
-### TODO
-
- [ ] write (unit) tests
- [ ] fix `LoadNodeData` in cc-metric-store MetricDataRepository. Currently does not work for non-node scoped metrics because partition is unkown for a node
- [ ] make tokens and sessions (currently based on cookies) expire after some configurable time
- [ ] when authenticating using a JWT, check if that user still exists
- [ ] fix InfluxDB MetricDataRepository (new or old line-protocol format? Support node-level metrics only?)
- [ ] documentation, comments in the code base
- [ ] write more TODOs
- [ ] use more prepared statements and [sqrl](https://github.com/elgris/sqrl) instead of *squirrel*
--- a/api/openapi.yaml
+++ b/api/openapi.yaml
@@ -38,6 +38,9 @@ paths:
        - name: items-per-page
          in: query
          schema: { type: integer }
+        - name: with-metadata
+          in: query
+          schema: { type: boolean }
      responses:
        200:
          description: 'Array of jobs'
--- a/api/rest.go
+++ b/api/rest.go
@@ -108,6 +108,7 @@ type TagJobApiRequest []*struct {

 // Return a list of jobs
 func (api *RestApi) getJobs(rw http.ResponseWriter, r *http.Request) {
+	withMetadata := false
 	filter := &model.JobFilter{}
 	page := &model.PageRequest{ItemsPerPage: -1, Page: 1}
 	order := &model.OrderByInput{Field: "startTime", Order: model.SortDirectionEnumDesc}
@@ -156,6 +157,8 @@ func (api *RestApi) getJobs(rw http.ResponseWriter, r *http.Request) {
 				return
 			}
 			page.ItemsPerPage = x
+		case "with-metadata":
+			withMetadata = true
 		default:
 			http.Error(rw, "invalid query parameter: "+key, http.StatusBadRequest)
 			return
@@ -170,6 +173,13 @@ func (api *RestApi) getJobs(rw http.ResponseWriter, r *http.Request) {

 	results := make([]*schema.JobMeta, 0, len(jobs))
 	for _, job := range jobs {
+		if withMetadata {
+			if _, err := api.JobRepository.FetchMetadata(job); err != nil {
+				http.Error(rw, err.Error(), http.StatusInternalServerError)
+				return
+			}
+		}
+
 		res := &schema.JobMeta{
 			ID:        &job.ID,
 			BaseJob:   job.BaseJob,
@@ -274,15 +284,15 @@ func (api *RestApi) startJob(rw http.ResponseWriter, r *http.Request) {
 	}

 	// Check if combination of (job_id, cluster_id, start_time) already exists:
-	job, err := api.JobRepository.Find(&req.JobID, &req.Cluster, &req.StartTime)
+	job, err := api.JobRepository.Find(&req.JobID, &req.Cluster, nil)
 	if err != nil && err != sql.ErrNoRows {
 		handleError(fmt.Errorf("checking for duplicate failed: %w", err), http.StatusInternalServerError, rw)
 		return
-	}
-
-	if err != sql.ErrNoRows {
-		handleError(fmt.Errorf("a job with that jobId, cluster and startTime already exists: dbid: %d", job.ID), http.StatusUnprocessableEntity, rw)
-		return
+	} else if err == nil {
+		if (req.StartTime - job.StartTimeUnix) < 86400 {
+			handleError(fmt.Errorf("a job with that jobId, cluster and startTime already exists: dbid: %d", job.ID), http.StatusUnprocessableEntity, rw)
+			return
+		}
 	}

 	id, err := api.JobRepository.Start(&req)
--- a/auth/auth.go
+++ b/auth/auth.go
@@ -14,6 +14,7 @@ import (
 	"strings"
 	"time"

+	"github.com/ClusterCockpit/cc-backend/graph/model"
 	"github.com/ClusterCockpit/cc-backend/log"
 	sq "github.com/Masterminds/squirrel"
 	"github.com/golang-jwt/jwt/v4"
@@ -71,11 +72,11 @@ func (auth *Authentication) Init(db *sqlx.DB, ldapConfig *LdapConfig) error {
 	auth.db = db
 	_, err := db.Exec(`
 	CREATE TABLE IF NOT EXISTS user (
-		username varchar(255) PRIMARY KEY,
+		username varchar(255) PRIMARY KEY NOT NULL,
 		password varchar(255) DEFAULT NULL,
-		ldap     tinyint      DEFAULT 0,
+		ldap     tinyint      NOT NULL DEFAULT 0,
 		name     varchar(255) DEFAULT NULL,
-		roles    varchar(255) DEFAULT NULL,
+		roles    varchar(255) NOT NULL DEFAULT "[]",
 		email    varchar(255) DEFAULT NULL);`)
 	if err != nil {
 		return err
@@ -233,6 +234,28 @@ func (auth *Authentication) FetchUser(username string) (*User, error) {
 	return user, nil
 }

+func FetchUser(ctx context.Context, db *sqlx.DB, username string) (*model.User, error) {
+	me := GetUser(ctx)
+	if me != nil && !me.HasRole(RoleAdmin) && me.Username != username {
+		return nil, errors.New("forbidden")
+	}
+
+	user := &model.User{Username: username}
+	var name, email sql.NullString
+	if err := sq.Select("name", "email").From("user").Where("user.username = ?", username).
+		RunWith(db).QueryRow().Scan(&name, &email); err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+
+		return nil, err
+	}
+
+	user.Name = name.String
+	user.Email = email.String
+	return user, nil
+}
+
 // Handle a POST request that should log the user in, starting a new session.
 func (auth *Authentication) Login(onsuccess http.Handler, onfailure func(rw http.ResponseWriter, r *http.Request, loginErr error)) http.Handler {
 	return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
--- a/config/config.go
+++ b/config/config.go
@@ -20,10 +20,14 @@ import (

 var db *sqlx.DB
 var lookupConfigStmt *sqlx.Stmt
+
 var lock sync.RWMutex
 var uiDefaults map[string]interface{}
+
 var cache *lrucache.Cache = lrucache.New(1024)
+
 var Clusters []*model.Cluster
+var nodeLists map[string]map[string]NodeList

 func Init(usersdb *sqlx.DB, authEnabled bool, uiConfig map[string]interface{}, jobArchive string) error {
 	db = usersdb
@@ -34,6 +38,7 @@ func Init(usersdb *sqlx.DB, authEnabled bool, uiConfig map[string]interface{}, j
 	}

 	Clusters = []*model.Cluster{}
+	nodeLists = map[string]map[string]NodeList{}
 	for _, de := range entries {
 		raw, err := os.ReadFile(filepath.Join(jobArchive, de.Name(), "cluster.json"))
 		if err != nil {
@@ -53,8 +58,8 @@ func Init(usersdb *sqlx.DB, authEnabled bool, uiConfig map[string]interface{}, j
 			return err
 		}

-		if len(cluster.Name) == 0 || len(cluster.MetricConfig) == 0 || len(cluster.Partitions) == 0 {
-			return errors.New("cluster.name, cluster.metricConfig and cluster.Partitions should not be empty")
+		if len(cluster.Name) == 0 || len(cluster.MetricConfig) == 0 || len(cluster.SubClusters) == 0 {
+			return errors.New("cluster.name, cluster.metricConfig and cluster.SubClusters should not be empty")
 		}

 		for _, mc := range cluster.MetricConfig {
@@ -83,6 +88,19 @@ func Init(usersdb *sqlx.DB, authEnabled bool, uiConfig map[string]interface{}, j
 		}

 		Clusters = append(Clusters, &cluster)
+
+		nodeLists[cluster.Name] = make(map[string]NodeList)
+		for _, sc := range cluster.SubClusters {
+			if sc.Nodes == "" {
+				continue
+			}
+
+			nl, err := ParseNodeList(sc.Nodes)
+			if err != nil {
+				return fmt.Errorf("in %s/cluster.json: %w", cluster.Name, err)
+			}
+			nodeLists[cluster.Name][sc.Name] = nl
+		}
 	}

 	if authEnabled {
@@ -188,7 +206,7 @@ func UpdateConfig(key, value string, ctx context.Context) error {
 	return nil
 }

-func GetClusterConfig(cluster string) *model.Cluster {
+func GetCluster(cluster string) *model.Cluster {
 	for _, c := range Clusters {
 		if c.Name == cluster {
 			return c
@@ -197,11 +215,11 @@ func GetClusterConfig(cluster string) *model.Cluster {
 	return nil
 }

-func GetPartition(cluster, partition string) *model.Partition {
+func GetSubCluster(cluster, subcluster string) *model.SubCluster {
 	for _, c := range Clusters {
 		if c.Name == cluster {
-			for _, p := range c.Partitions {
-				if p.Name == partition {
+			for _, p := range c.SubClusters {
+				if p.Name == subcluster {
 					return p
 				}
 			}
@@ -222,3 +240,40 @@ func GetMetricConfig(cluster, metric string) *model.MetricConfig {
 	}
 	return nil
 }
+
+// AssignSubCluster sets the `job.subcluster` property of the job based
+// on its cluster and resources.
+func AssignSubCluster(job *schema.BaseJob) error {
+	cluster := GetCluster(job.Cluster)
+	if cluster == nil {
+		return fmt.Errorf("unkown cluster: %#v", job.Cluster)
+	}
+
+	if job.SubCluster != "" {
+		for _, sc := range cluster.SubClusters {
+			if sc.Name == job.SubCluster {
+				return nil
+			}
+		}
+		return fmt.Errorf("already assigned subcluster %#v unkown (cluster: %#v)", job.SubCluster, job.Cluster)
+	}
+
+	if len(job.Resources) == 0 {
+		return fmt.Errorf("job without any resources/hosts")
+	}
+
+	host0 := job.Resources[0].Hostname
+	for sc, nl := range nodeLists[job.Cluster] {
+		if nl != nil && nl.Contains(host0) {
+			job.SubCluster = sc
+			return nil
+		}
+	}
+
+	if cluster.SubClusters[0].Nodes == "" {
+		job.SubCluster = cluster.SubClusters[0].Name
+		return nil
+	}
+
+	return fmt.Errorf("no subcluster found for cluster %#v and host %#v", job.Cluster, host0)
+}
--- a/config/nodelist.go
+++ b/config/nodelist.go
@@ -0,0 +1,136 @@
+package config
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/ClusterCockpit/cc-backend/log"
+)
+
+type NLExprString string
+
+func (nle NLExprString) consume(input string) (next string, ok bool) {
+	str := string(nle)
+	if strings.HasPrefix(input, str) {
+		return strings.TrimPrefix(input, str), true
+	}
+	return "", false
+}
+
+type NLExprIntRange struct {
+	start, end int64
+	zeroPadded bool
+	digits     int
+}
+
+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")
+		return "", false
+	}
+
+	if len(input) < nle.digits {
+		return "", false
+	}
+
+	numerals, rest := input[:nle.digits], input[nle.digits:]
+	for len(numerals) > 1 && numerals[0] == '0' {
+		numerals = numerals[1:]
+	}
+
+	x, err := strconv.ParseInt(numerals, 10, 32)
+	if err != nil {
+		return "", false
+	}
+
+	if nle.start <= x && x <= nle.end {
+		return rest, true
+	}
+
+	return "", false
+}
+
+type NodeList [][]interface {
+	consume(input string) (next string, ok bool)
+}
+
+func (nl *NodeList) Contains(name string) bool {
+	var ok bool
+	for _, term := range *nl {
+		str := name
+		for _, expr := range term {
+			str, ok = expr.consume(str)
+			if !ok {
+				break
+			}
+		}
+
+		if ok && str == "" {
+			return true
+		}
+	}
+
+	return false
+}
+
+func ParseNodeList(raw string) (NodeList, error) {
+	nl := NodeList{}
+
+	isLetter := func(r byte) bool { return ('a' <= r && r <= 'z') || ('A' <= r && r <= 'Z') }
+	isDigit := func(r byte) bool { return '0' <= r && r <= '9' }
+
+	for _, rawterm := range strings.Split(raw, ",") {
+		exprs := []interface {
+			consume(input string) (next string, ok bool)
+		}{}
+		for i := 0; i < len(rawterm); i++ {
+			c := rawterm[i]
+			if isLetter(c) || isDigit(c) {
+				j := i
+				for j < len(rawterm) && (isLetter(rawterm[j]) || isDigit(rawterm[j])) {
+					j++
+				}
+				exprs = append(exprs, NLExprString(rawterm[i:j]))
+				i = j - 1
+			} else if c == '[' {
+				end := strings.Index(rawterm[i:], "]")
+				if end == -1 {
+					return nil, fmt.Errorf("node list: unclosed '['")
+				}
+
+				minus := strings.Index(rawterm[i:i+end], "-")
+				if minus == -1 {
+					return nil, fmt.Errorf("node list: no '-' found inside '[...]'")
+				}
+
+				s1, s2 := rawterm[i+1:i+minus], rawterm[i+minus+1:i+end]
+				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)
+				}
+
+				x1, err := strconv.ParseInt(s1, 10, 32)
+				if err != nil {
+					return nil, fmt.Errorf("node list: %w", err)
+				}
+				x2, err := strconv.ParseInt(s2, 10, 32)
+				if err != nil {
+					return nil, fmt.Errorf("node list: %w", err)
+				}
+
+				exprs = append(exprs, NLExprIntRange{
+					start:      x1,
+					end:        x2,
+					digits:     len(s1),
+					zeroPadded: true,
+				})
+				i += end
+			} else {
+				return nil, fmt.Errorf("node list: invalid character: %#v", rune(c))
+			}
+		}
+		nl = append(nl, exprs)
+	}
+
+	return nl, nil
+}
--- a/config/nodelist_test.go
+++ b/config/nodelist_test.go
@@ -0,0 +1,37 @@
+package config
+
+import (
+	"testing"
+)
+
+func TestNodeList(t *testing.T) {
+	nl, err := ParseNodeList("hallo,wel123t,emmy[01-99],fritz[005-500],woody[100-200]")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// fmt.Printf("terms\n")
+	// for i, term := range nl.terms {
+	// 	fmt.Printf("term %d: %#v\n", i, term)
+	// }
+
+	if nl.Contains("hello") || nl.Contains("woody") {
+		t.Fail()
+	}
+
+	if nl.Contains("fritz1") || nl.Contains("fritz9") || nl.Contains("fritz004") || nl.Contains("woody201") {
+		t.Fail()
+	}
+
+	if !nl.Contains("hallo") || !nl.Contains("wel123t") {
+		t.Fail()
+	}
+
+	if !nl.Contains("emmy01") || !nl.Contains("emmy42") || !nl.Contains("emmy99") {
+		t.Fail()
+	}
+
+	if !nl.Contains("woody100") || !nl.Contains("woody199") {
+		t.Fail()
+	}
+}
--- a/go.mod
+++ b/go.mod
@@ -8,6 +8,7 @@ require (
 	github.com/go-ldap/ldap/v3 v3.4.1
 	github.com/go-sql-driver/mysql v1.5.0
 	github.com/golang-jwt/jwt/v4 v4.1.0
+	github.com/google/gops v0.3.22
 	github.com/gorilla/handlers v1.5.1
 	github.com/gorilla/mux v1.8.0
 	github.com/gorilla/sessions v1.2.1
@@ -18,6 +19,7 @@ require (
 	github.com/vektah/gqlparser/v2 v2.1.0
 	golang.org/x/crypto v0.0.0-20211117183948-ae814b36b871
 )
+<<<<<<< HEAD

 require (
 	github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c // indirect
@@ -36,3 +38,5 @@ require (
 	golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 // indirect
 	gopkg.in/yaml.v2 v2.3.0 // indirect
 )
+=======
+>>>>>>> master
--- a/go.sum
+++ b/go.sum
@@ -5,6 +5,7 @@ github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c/go.mod h1:chxPXzS
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/Masterminds/squirrel v1.5.1 h1:kWAKlLLJFxZG7N2E0mBMNWVp5AuUX+JUrnhFN74Eg+w=
 github.com/Masterminds/squirrel v1.5.1/go.mod h1:NNaOrjSoIDfDA40n7sr2tPNZRfjzjA400rg+riTZj10=
+github.com/StackExchange/wmi v1.2.1/go.mod h1:rcmrprowKIVzvc+NUiLncP2uuArMWLCbu9SBzvHz7e8=
 github.com/agnivade/levenshtein v1.0.1/go.mod h1:CURSv5d9Uaml+FovSIICkLbAUZ9S4RqaHDIsdSBg7lM=
 github.com/agnivade/levenshtein v1.0.3 h1:M5ZnqLOoZR8ygVq0FfkXsNOKzMCk0xRiow0R5+5VkQ0=
 github.com/agnivade/levenshtein v1.0.3/go.mod h1:4SFRZbbXWLF4MU1T9Qg0pGgH3Pjs+t6ie5efyrwRJXs=
@@ -32,14 +33,24 @@ github.com/go-chi/chi v3.3.2+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxm
 github.com/go-chi/chi/v5 v5.0.0/go.mod h1:BBug9lr0cqtdAhsu6R4AAdvufI0/XBzAQSsUqJpoZOs=
 github.com/go-ldap/ldap/v3 v3.4.1 h1:fU/0xli6HY02ocbMuozHAYsaHLcnkLjvho2r5a34BUU=
 github.com/go-ldap/ldap/v3 v3.4.1/go.mod h1:iYS1MdmrmceOJ1QOTnRXrIs7i3kloqtmGQjRvjKpyMg=
+<<<<<<< HEAD
 github.com/go-openapi/jsonpointer v0.19.5/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
 github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
+=======
+github.com/go-ole/go-ole v1.2.5/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
+github.com/go-ole/go-ole v1.2.6-0.20210915003542-8b1f7f90f6b1/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
+>>>>>>> master
 github.com/go-sql-driver/mysql v1.5.0 h1:ozyZYNQW3x3HtqT1jira07DN2PArx2v7/mN66gGcHOs=
 github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
 github.com/gogo/protobuf v1.0.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang-jwt/jwt/v4 v4.1.0 h1:XUgk2Ex5veyVFVeLm0xhusUTQybEbexJXrvPNOKkSY0=
 github.com/golang-jwt/jwt/v4 v4.1.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg=
+<<<<<<< HEAD
 github.com/golangci/lint-1 v0.0.0-20181222135242-d2cdd8c08219/go.mod h1:/X8TswGSh1pIozq4ZwCfxS0WA5JGXguxk94ar/4c87Y=
+=======
+github.com/google/gops v0.3.22 h1:lyvhDxfPLHAOR2xIYwjPhN387qHxyU21Sk9sz/GhmhQ=
+github.com/google/gops v0.3.22/go.mod h1:7diIdLsqpCihPSX3fQagksT/Ku/y4RL9LHTlKyEUDl8=
+>>>>>>> master
 github.com/gorilla/context v0.0.0-20160226214623-1ea25387ff6f/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=
 github.com/gorilla/handlers v1.5.1 h1:9lRY6j8DEeeBT10CvO9hGW0gmky0BprnvDI5vfhUHH4=
 github.com/gorilla/handlers v1.5.1/go.mod h1:t8XrUpc4KVXb7HGyJ4/cEnwQiaxrX/hz1Zv/4g96P1Q=
@@ -62,6 +73,7 @@ github.com/influxdata/line-protocol v0.0.0-20200327222509-2487e7298839 h1:W9WBk7
 github.com/influxdata/line-protocol v0.0.0-20200327222509-2487e7298839/go.mod h1:xaLFMmpvUxqXtVkUJfg9QmT88cDaCJ3ZKgdZ78oO8Qo=
 github.com/jmoiron/sqlx v1.3.1 h1:aLN7YINNZ7cYOPK3QC83dbM6KT0NMqVMw961TqrejlE=
 github.com/jmoiron/sqlx v1.3.1/go.mod h1:2BljVx/86SuTyjE+aPYlHCTNvZrnJXghYGpNiXLBMCQ=
+github.com/keybase/go-ps v0.0.0-20190827175125-91aafc93ba19/go.mod h1:hY+WOq6m2FpbvyrI93sMaypsttvaIL5nhVR92dTMUcQ=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
@@ -102,6 +114,7 @@ github.com/rs/cors v1.6.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/sergi/go-diff v1.1.0 h1:we8PVUC3FE2uYfodKH/nBHMSetSfHDR6scGdBi+erh0=
 github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
+github.com/shirou/gopsutil/v3 v3.21.9/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
 github.com/shurcooL/httpfs v0.0.0-20171119174359-809beceb2371/go.mod h1:ZY1cvUeJuFPAdZ/B6v7RHavJWZn2YPVFQ1OSXhCGOkg=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/shurcooL/vfsgen v0.0.0-20180121065927-ffb13db8def0/go.mod h1:TrYk7fJVaAttu97ZZKrO9UbRa8izdowaMIZcxYMbVaw=
@@ -112,6 +125,13 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+<<<<<<< HEAD
+=======
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/tklauser/go-sysconf v0.3.9/go.mod h1:11DU/5sG7UexIrp/O6g35hrWzu0JxlwQ3LSFUzyeuhs=
+github.com/tklauser/numcpus v0.3.0/go.mod h1:yFGUr7TUHQRAhyqBcEg0Ge34zDBAsIvJJcyE6boqnA8=
+github.com/urfave/cli/v2 v2.1.1 h1:Qt8FeAtxE/vfdrLmR3rxR6JRE0RoVmbXu8+6kZtYU4k=
+>>>>>>> master
 github.com/urfave/cli/v2 v2.1.1/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
@@ -119,6 +139,7 @@ github.com/valyala/fasttemplate v1.2.1/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+
 github.com/vektah/dataloaden v0.2.1-0.20190515034641-a19b9a6e7c9e/go.mod h1:/HUdMve7rvxZma+2ZELQeNh88+003LL7Pf/CZ089j8U=
 github.com/vektah/gqlparser/v2 v2.1.0 h1:uiKJ+T5HMGGQM2kRKQ8Pxw8+Zq9qhhZhz/lieYvCMns=
 github.com/vektah/gqlparser/v2 v2.1.0/go.mod h1:SyUiHgLATUR8BiYURfTirrTcGpcE+4XkV2se04Px1Ms=
+github.com/xlab/treeprint v1.1.0/go.mod h1:gj5Gd3gPdKtR1ikdDK6fnFLdmIS0X30kTTuNd/WEJu0=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@@ -139,8 +160,12 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+<<<<<<< HEAD
 golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+=======
+golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+>>>>>>> master
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -149,7 +174,13 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+<<<<<<< HEAD
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
+=======
+golang.org/x/sys v0.0.0-20210816074244-15123e1e1f71/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210902050250-f475640dd07b h1:S7hKs0Flbq0bbc9xgYt4stIEG1zNDFqyrPwAX2Wj/sE=
+golang.org/x/sys v0.0.0-20210902050250-f475640dd07b/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+>>>>>>> master
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -172,5 +203,7 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+rsc.io/goversion v1.2.0/go.mod h1:Eih9y/uIBS3ulggl7KNJ09xGSLcuNaLgmvvqa07sgfo=
 sourcegraph.com/sourcegraph/appdash v0.0.0-20180110180208-2cc67fd64755/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=
 sourcegraph.com/sourcegraph/appdash-data v0.0.0-20151005221446-73f23eafcf67/go.mod h1:L5q+DGLGOQFpo1snNEkLOJT2d1YTW66rWNzatr3He1k=
--- a/gqlgen.yml
+++ b/gqlgen.yml
@@ -61,6 +61,10 @@ models:
        resolver: true
      metaData:
        resolver: true
+  Cluster:
+    fields:
+      partitions:
+        resolver: true
  NullableFloat: { model: "github.com/ClusterCockpit/cc-backend/schema.Float" }
  MetricScope: { model: "github.com/ClusterCockpit/cc-backend/schema.MetricScope" }
  JobStatistics: { model: "github.com/ClusterCockpit/cc-backend/schema.JobStatistics" }
--- a/graph/generated/generated.go
+++ b/graph/generated/generated.go
--- a/graph/model/models.go
+++ b/graph/model/models.go
@@ -9,7 +9,7 @@ type Cluster struct {
 	Name         string          `json:"name"`
 	MetricConfig []*MetricConfig `json:"metricConfig"`
 	FilterRanges *FilterRanges   `json:"filterRanges"`
-	Partitions   []*Partition    `json:"partitions"`
+	SubClusters  []*SubCluster   `json:"subClusters"`

 	// NOT part of the GraphQL API. This has to be a JSON object with a field `"kind"`.
 	// All other fields depend on that kind (e.g. "cc-metric-store", "influxdb-v2").
--- a/graph/model/models_gen.go
+++ b/graph/model/models_gen.go
@@ -33,6 +33,11 @@ type FloatRange struct {
 	To   float64 `json:"to"`
 }

+type Footprints struct {
+	Nodehours []schema.Float      `json:"nodehours"`
+	Metrics   []*MetricFootprints `json:"metrics"`
+}
+
 type HistoPoint struct {
 	Count int `json:"count"`
 	Value int `json:"value"`
@@ -92,19 +97,20 @@ type JobsStatistics struct {
 }

 type MetricConfig struct {
-	Name     string             `json:"name"`
-	Unit     string             `json:"unit"`
-	Scope    schema.MetricScope `json:"scope"`
-	Timestep int                `json:"timestep"`
-	Peak     float64            `json:"peak"`
-	Normal   float64            `json:"normal"`
-	Caution  float64            `json:"caution"`
-	Alert    float64            `json:"alert"`
+	Name        string             `json:"name"`
+	Unit        string             `json:"unit"`
+	Scope       schema.MetricScope `json:"scope"`
+	Aggregation *string            `json:"aggregation"`
+	Timestep    int                `json:"timestep"`
+	Peak        float64            `json:"peak"`
+	Normal      float64            `json:"normal"`
+	Caution     float64            `json:"caution"`
+	Alert       float64            `json:"alert"`
 }

 type MetricFootprints struct {
-	Name       string         `json:"name"`
-	Footprints []schema.Float `json:"footprints"`
+	Metric string         `json:"metric"`
+	Data   []schema.Float `json:"data"`
 }

 type NodeMetrics struct {
@@ -122,8 +128,16 @@ type PageRequest struct {
 	Page         int `json:"page"`
 }

-type Partition struct {
+type StringInput struct {
+	Eq         *string `json:"eq"`
+	Contains   *string `json:"contains"`
+	StartsWith *string `json:"startsWith"`
+	EndsWith   *string `json:"endsWith"`
+}
+
+type SubCluster struct {
 	Name            string    `json:"name"`
+	Nodes           string    `json:"nodes"`
 	ProcessorType   string    `json:"processorType"`
 	SocketsPerNode  int       `json:"socketsPerNode"`
 	CoresPerSocket  int       `json:"coresPerSocket"`
@@ -134,13 +148,6 @@ type Partition struct {
 	Topology        *Topology `json:"topology"`
 }

-type StringInput struct {
-	Eq         *string `json:"eq"`
-	Contains   *string `json:"contains"`
-	StartsWith *string `json:"startsWith"`
-	EndsWith   *string `json:"endsWith"`
-}
-
 type TimeRange struct {
 	From *time.Time `json:"from"`
 	To   *time.Time `json:"to"`
@@ -160,6 +167,12 @@ type Topology struct {
 	Accelerators []*Accelerator `json:"accelerators"`
 }

+type User struct {
+	Username string `json:"username"`
+	Name     string `json:"name"`
+	Email    string `json:"email"`
+}
+
 type Aggregate string

 const (
--- a/graph/schema.graphqls
+++ b/graph/schema.graphqls
@@ -11,8 +11,10 @@ type Job {
  user:             String!
  project:          String!
  cluster:          String!
+  subCluster:       String!
  startTime:        Time!
  duration:         Int!
+  walltime:         Int!
  numNodes:         Int!
  numHWThreads:     Int!
  numAcc:           Int!
@@ -22,20 +24,24 @@ type Job {
  arrayJobId:       Int!
  monitoringStatus: Int!
  state:            JobState!
-  metaData:         Any
  tags:             [Tag!]!
  resources:        [Resource!]!
+
+  metaData:         Any
+  userData:         User
 }

 type Cluster {
  name:         String!
+  partitions:   [String!]!        # Slurm partitions
  metricConfig: [MetricConfig!]!
  filterRanges: FilterRanges!
-  partitions:   [Partition!]!
+  subClusters:  [SubCluster!]!    # Hardware partitions/subclusters
 }

-type Partition {
+type SubCluster {
  name:            String!
+  nodes:           String!
  processorType:   String!
  socketsPerNode:  Int!
  coresPerSocket:  Int!
@@ -62,14 +68,15 @@ type Accelerator {
 }

 type MetricConfig {
-  name:     String!
-  unit:     String!
-  scope:    MetricScope!
-  timestep: Int!
-  peak:     Float!
-  normal:   Float!
-  caution:  Float!
-  alert:    Float!
+  name:        String!
+  unit:        String!
+  scope:       MetricScope!
+  aggregation: String
+  timestep:    Int!
+  peak:        Float!
+  normal:      Float!
+  caution:     Float!
+  alert:       Float!
 }

 type Tag {
@@ -118,8 +125,13 @@ type StatsSeries {
 }

 type MetricFootprints {
-  name: String!
-  footprints: [NullableFloat!]!
+  metric: String!
+  data:   [NullableFloat!]!
+}
+
+type Footprints {
+  nodehours: [NullableFloat!]!
+  metrics:   [MetricFootprints!]!
 }

 enum Aggregate { USER, PROJECT, CLUSTER }
@@ -134,13 +146,21 @@ type Count {
  count: Int!
 }

+type User {
+  username: String!
+  name:     String!
+  email:    String!
+}
+
 type Query {
  clusters:     [Cluster!]!   # List of all clusters
  tags:         [Tag!]!       # List of all tags

+  user(username: String!): User
+
  job(id: ID!): Job
  jobMetrics(id: ID!, metrics: [String!], scopes: [MetricScope!]): [JobMetricWithName!]!
-  jobsFootprints(filter: [JobFilter!], metrics: [String!]!): [MetricFootprints]!
+  jobsFootprints(filter: [JobFilter!], metrics: [String!]!): Footprints

  jobs(filter: [JobFilter!], page: PageRequest, order: OrderByInput): JobResultList!
  jobsStatistics(filter: [JobFilter!], groupBy: Aggregate): [JobsStatistics!]!
--- a/graph/schema.resolvers.go
+++ b/graph/schema.resolvers.go
@@ -18,14 +18,22 @@ import (
 	"github.com/ClusterCockpit/cc-backend/schema"
 )

-func (r *jobResolver) MetaData(ctx context.Context, obj *schema.Job) (interface{}, error) {
-	return r.Repo.FetchMetadata(obj)
+func (r *clusterResolver) Partitions(ctx context.Context, obj *model.Cluster) ([]string, error) {
+	return r.Repo.Partitions(obj.Name)
 }

 func (r *jobResolver) Tags(ctx context.Context, obj *schema.Job) ([]*schema.Tag, error) {
 	return r.Repo.GetTags(&obj.ID)
 }

+func (r *jobResolver) MetaData(ctx context.Context, obj *schema.Job) (interface{}, error) {
+	return r.Repo.FetchMetadata(obj)
+}
+
+func (r *jobResolver) UserData(ctx context.Context, obj *schema.Job) (*model.User, error) {
+	return auth.FetchUser(ctx, r.DB, obj.User)
+}
+
 func (r *mutationResolver) CreateTag(ctx context.Context, typeArg string, name string) (*schema.Tag, error) {
 	id, err := r.Repo.CreateTag(typeArg, name)
 	if err != nil {
@@ -98,6 +106,10 @@ func (r *queryResolver) Tags(ctx context.Context) ([]*schema.Tag, error) {
 	return r.Repo.GetTags(nil)
 }

+func (r *queryResolver) User(ctx context.Context, username string) (*model.User, error) {
+	return auth.FetchUser(ctx, r.DB, username)
+}
+
 func (r *queryResolver) Job(ctx context.Context, id string) (*schema.Job, error) {
 	numericId, err := strconv.ParseInt(id, 10, 64)
 	if err != nil {
@@ -144,7 +156,7 @@ func (r *queryResolver) JobMetrics(ctx context.Context, id string, metrics []str
 	return res, err
 }

-func (r *queryResolver) JobsFootprints(ctx context.Context, filter []*model.JobFilter, metrics []string) ([]*model.MetricFootprints, error) {
+func (r *queryResolver) JobsFootprints(ctx context.Context, filter []*model.JobFilter, metrics []string) (*model.Footprints, error) {
 	return r.jobsFootprints(ctx, filter, metrics)
 }

@@ -204,7 +216,7 @@ func (r *queryResolver) NodeMetrics(ctx context.Context, cluster string, partiti
 	}

 	if metrics == nil {
-		for _, mc := range config.GetClusterConfig(cluster).MetricConfig {
+		for _, mc := range config.GetCluster(cluster).MetricConfig {
 			metrics = append(metrics, mc.Name)
 		}
 	}
@@ -236,6 +248,9 @@ func (r *queryResolver) NodeMetrics(ctx context.Context, cluster string, partiti
 	return nodeMetrics, nil
 }

+// Cluster returns generated.ClusterResolver implementation.
+func (r *Resolver) Cluster() generated.ClusterResolver { return &clusterResolver{r} }
+
 // Job returns generated.JobResolver implementation.
 func (r *Resolver) Job() generated.JobResolver { return &jobResolver{r} }

@@ -245,6 +260,7 @@ func (r *Resolver) Mutation() generated.MutationResolver { return &mutationResol
 // Query returns generated.QueryResolver implementation.
 func (r *Resolver) Query() generated.QueryResolver { return &queryResolver{r} }

+type clusterResolver struct{ *Resolver }
 type jobResolver struct{ *Resolver }
 type mutationResolver struct{ *Resolver }
 type queryResolver struct{ *Resolver }
--- a/graph/stats.go
+++ b/graph/stats.go
@@ -32,8 +32,8 @@ func (r *queryResolver) jobsStatistics(ctx context.Context, filter []*model.JobF

 	// `socketsPerNode` and `coresPerSocket` can differ from cluster to cluster, so we need to explicitly loop over those.
 	for _, cluster := range config.Clusters {
-		for _, partition := range cluster.Partitions {
-			corehoursCol := fmt.Sprintf("CAST(ROUND(SUM(job.duration * job.num_nodes * %d * %d) / 3600) as int)", partition.SocketsPerNode, partition.CoresPerSocket)
+		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 query sq.SelectBuilder
 			if groupBy == nil {
 				query = sq.Select(
@@ -54,7 +54,7 @@ func (r *queryResolver) jobsStatistics(ctx context.Context, filter []*model.JobF

 			query = query.
 				Where("job.cluster = ?", cluster.Name).
-				Where("job.partition = ?", partition.Name)
+				Where("job.subcluster = ?", subcluster.Name)

 			query = repository.SecurityCheck(ctx, query)
 			for _, f := range filter {
@@ -254,7 +254,7 @@ func (r *Resolver) rooflineHeatmap(ctx context.Context, filter []*model.JobFilte
 }

 // Helper function for the jobsFootprints GraphQL query placed here so that schema.resolvers.go is not too full.
-func (r *queryResolver) jobsFootprints(ctx context.Context, filter []*model.JobFilter, metrics []string) ([]*model.MetricFootprints, error) {
+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 {
 		return nil, err
@@ -268,19 +268,25 @@ func (r *queryResolver) jobsFootprints(ctx context.Context, filter []*model.JobF
 		avgs[i] = make([]schema.Float, 0, len(jobs))
 	}

+	nodehours := make([]schema.Float, 0, len(jobs))
 	for _, job := range jobs {
 		if err := metricdata.LoadAverages(job, metrics, avgs, ctx); err != nil {
 			return nil, err
 		}
+
+		nodehours = append(nodehours, schema.Float(float64(job.Duration)/60.0*float64(job.NumNodes)))
 	}

 	res := make([]*model.MetricFootprints, len(avgs))
 	for i, arr := range avgs {
 		res[i] = &model.MetricFootprints{
-			Name:       metrics[i],
-			Footprints: arr,
+			Metric: metrics[i],
+			Data:   arr,
 		}
 	}

-	return res, nil
+	return &model.Footprints{
+		Nodehours: nodehours,
+		Metrics:   res,
+	}, nil
 }
--- a/metricdata/archive.go
+++ b/metricdata/archive.go
@@ -157,14 +157,14 @@ func GetStatistics(job *schema.Job) (map[string]schema.JobStatistics, error) {
 // Writes a running job to the job-archive
 func ArchiveJob(job *schema.Job, ctx context.Context) (*schema.JobMeta, error) {
 	allMetrics := make([]string, 0)
-	metricConfigs := config.GetClusterConfig(job.Cluster).MetricConfig
+	metricConfigs := config.GetCluster(job.Cluster).MetricConfig
 	for _, mc := range metricConfigs {
 		allMetrics = append(allMetrics, mc.Name)
 	}

-	// TODO: For now: Only single-node-jobs get archived in full resolution
+	// TODO: Talk about this! What resolutions to store data at...
 	scopes := []schema.MetricScope{schema.MetricScopeNode}
-	if job.NumNodes == 1 {
+	if job.NumNodes <= 8 {
 		scopes = append(scopes, schema.MetricScopeCore)
 	}

--- a/metricdata/cc-metric-store.go
+++ b/metricdata/cc-metric-store.go
@@ -243,7 +243,7 @@ var (

 func (ccms *CCMetricStore) buildQueries(job *schema.Job, metrics []string, scopes []schema.MetricScope) ([]ApiQuery, []schema.MetricScope, error) {
 	queries := make([]ApiQuery, 0, len(metrics)*len(scopes)*len(job.Resources))
-	topology := config.GetPartition(job.Cluster, job.Partition).Topology
+	topology := config.GetSubCluster(job.Cluster, job.SubCluster).Topology
 	assignedScope := []schema.MetricScope{}

 	for _, metric := range metrics {
--- a/metricdata/metricdata.go
+++ b/metricdata/metricdata.go
@@ -72,7 +72,7 @@ var cache *lrucache.Cache = lrucache.New(512 * 1024 * 1024)

 // Fetches the metric data for a job.
 func LoadData(job *schema.Job, metrics []string, scopes []schema.MetricScope, ctx context.Context) (schema.JobData, error) {
-	data := cache.Get(cacheKey(job, metrics, scopes), func() (interface{}, time.Duration, int) {
+	data := cache.Get(cacheKey(job, metrics, scopes), func() (_ interface{}, ttl time.Duration, size int) {
 		var jd schema.JobData
 		var err error
 		if job.State == schema.JobStateRunning ||
@@ -88,7 +88,7 @@ func LoadData(job *schema.Job, metrics []string, scopes []schema.MetricScope, ct
 			}

 			if metrics == nil {
-				cluster := config.GetClusterConfig(job.Cluster)
+				cluster := config.GetCluster(job.Cluster)
 				for _, mc := range cluster.MetricConfig {
 					metrics = append(metrics, mc.Name)
 				}
@@ -102,30 +102,43 @@ func LoadData(job *schema.Job, metrics []string, scopes []schema.MetricScope, ct
 					return err, 0, 0
 				}
 			}
+			size = jd.Size()
 		} else {
 			jd, err = loadFromArchive(job)
 			if err != nil {
 				return err, 0, 0
 			}

+			// Avoid sending unrequested data to the client:
 			if metrics != nil {
 				res := schema.JobData{}
 				for _, metric := range metrics {
-					if metricdata, ok := jd[metric]; ok {
-						res[metric] = metricdata
+					if perscope, ok := jd[metric]; ok {
+						if len(scopes) > 1 {
+							subset := make(map[schema.MetricScope]*schema.JobMetric)
+							for _, scope := range scopes {
+								if jm, ok := perscope[scope]; ok {
+									subset[scope] = jm
+								}
+							}
+							perscope = subset
+						}
+
+						res[metric] = perscope
 					}
 				}
 				jd = res
 			}
+			size = 1 // loadFromArchive() caches in the same cache.
 		}

-		ttl := 5 * time.Hour
+		ttl = 5 * time.Hour
 		if job.State == schema.JobStateRunning {
 			ttl = 2 * time.Minute
 		}

 		prepareJobData(job, jd, scopes)
-		return jd, ttl, jd.Size()
+		return jd, ttl, size
 	})

 	if err, ok := data.(error); ok {
@@ -176,7 +189,7 @@ func LoadNodeData(cluster, partition string, metrics, nodes []string, scopes []s
 	}

 	if metrics == nil {
-		for _, m := range config.GetClusterConfig(cluster).MetricConfig {
+		for _, m := range config.GetCluster(cluster).MetricConfig {
 			metrics = append(metrics, m.Name)
 		}
 	}
--- a/repository/import.go
+++ b/repository/import.go
@@ -16,12 +16,12 @@ import (
 )

 const NamedJobInsert string = `INSERT INTO job (
-	job_id, user, project, cluster, ` + "`partition`" + `, array_job_id, num_nodes, num_hwthreads, num_acc,
-	exclusive, monitoring_status, smt, job_state, start_time, duration, resources, meta_data,
+	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,
 	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
 ) VALUES (
-	:job_id, :user, :project, :cluster, :partition, :array_job_id, :num_nodes, :num_hwthreads, :num_acc,
-	:exclusive, :monitoring_status, :smt, :job_state, :start_time, :duration, :resources, :meta_data,
+	: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,
 	: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
 );`

@@ -122,12 +122,13 @@ func (r *JobRepository) ImportJob(jobMeta *schema.JobMeta, jobData *schema.JobDa
 	return nil
 }

+// This function also sets the subcluster if necessary!
 func SanityChecks(job *schema.BaseJob) error {
-	if c := config.GetClusterConfig(job.Cluster); c == nil {
+	if c := config.GetCluster(job.Cluster); c == nil {
 		return fmt.Errorf("no such cluster: %#v", job.Cluster)
 	}
-	if p := config.GetPartition(job.Cluster, job.Partition); p == nil {
-		return fmt.Errorf("no such partition: %#v (on cluster %#v)", job.Partition, job.Cluster)
+	if err := config.AssignSubCluster(job); err != nil {
+		return err
 	}
 	if !job.State.Valid() {
 		return fmt.Errorf("not a valid job state: %#v", job.State)
--- a/repository/init.go
+++ b/repository/init.go
@@ -1,4 +1,4 @@
-package main
+package repository

 import (
 	"bufio"
@@ -9,14 +9,13 @@ import (
 	"time"

 	"github.com/ClusterCockpit/cc-backend/log"
-	"github.com/ClusterCockpit/cc-backend/repository"
 	"github.com/ClusterCockpit/cc-backend/schema"
 	"github.com/jmoiron/sqlx"
 )

 // `AUTO_INCREMENT` is in a comment because of this hack:
 // https://stackoverflow.com/a/41028314 (sqlite creates unique ids automatically)
-const JOBS_DB_SCHEMA string = `
+const JobsDBSchema string = `
 	DROP TABLE IF EXISTS jobtag;
 	DROP TABLE IF EXISTS job;
 	DROP TABLE IF EXISTS tag;
@@ -25,13 +24,15 @@ const JOBS_DB_SCHEMA string = `
 		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,
+		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
@@ -66,7 +67,8 @@ const JOBS_DB_SCHEMA string = `
 		FOREIGN KEY (tag_id) REFERENCES tag (id) ON DELETE CASCADE);
 `

-const JOBS_DB_INDEXES string = `
+// 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);
@@ -75,12 +77,12 @@ const JOBS_DB_INDEXES string = `

 // Delete the tables "job", "tag" and "jobtag" from the database and
 // repopulate them using the jobs found in `archive`.
-func initDB(db *sqlx.DB, archive string) error {
+func InitDB(db *sqlx.DB, archive string) error {
 	starttime := time.Now()
 	log.Print("Building job table...")

 	// Basic database structure:
-	_, err := db.Exec(JOBS_DB_SCHEMA)
+	_, err := db.Exec(JobsDBSchema)
 	if err != nil {
 		return err
 	}
@@ -94,16 +96,21 @@ func initDB(db *sqlx.DB, archive string) error {
 		return err
 	}

+	// Inserts are bundled into transactions because in sqlite,
+	// that speeds up inserts A LOT.
 	tx, err := db.Beginx()
 	if err != nil {
 		return err
 	}

-	stmt, err := tx.PrepareNamed(repository.NamedJobInsert)
+	stmt, err := tx.PrepareNamed(NamedJobInsert)
 	if err != nil {
 		return err
 	}

+	// Not using log.Print because we want the line to end with `\r` and
+	// this function is only ever called when a special command line flag
+	// is passed anyways.
 	fmt.Printf("%d jobs inserted...\r", 0)
 	i := 0
 	tags := make(map[string]int64)
@@ -157,6 +164,8 @@ func initDB(db *sqlx.DB, archive string) error {
 					return err
 				}

+				// For compability with the old job-archive directory structure where
+				// there was no start time directory.
 				for _, startTimeDir := range startTimeDirs {
 					if startTimeDir.Type().IsRegular() && startTimeDir.Name() == "meta.json" {
 						if err := handleDirectory(dirpath); err != nil {
@@ -178,7 +187,7 @@ func initDB(db *sqlx.DB, archive string) error {

 	// Create indexes after inserts so that they do not
 	// need to be continually updated.
-	if _, err := db.Exec(JOBS_DB_INDEXES); err != nil {
+	if _, err := db.Exec(JobsDbIndexes); err != nil {
 		return err
 	}

@@ -224,7 +233,7 @@ func loadJob(tx *sqlx.Tx, stmt *sqlx.NamedStmt, tags map[string]int64, path stri
 		return err
 	}

-	if err := repository.SanityChecks(&job.BaseJob); err != nil {
+	if err := SanityChecks(&job.BaseJob); err != nil {
 		return err
 	}

@@ -260,11 +269,3 @@ func loadJob(tx *sqlx.Tx, stmt *sqlx.NamedStmt, tags map[string]int64, path stri

 	return nil
 }
-
-func loadJobStat(job *schema.JobMeta, metric string) float64 {
-	if stats, ok := job.Statistics[metric]; ok {
-		return stats.Avg
-	}
-
-	return 0.0
-}
--- a/repository/job.go
+++ b/repository/job.go
@@ -13,6 +13,7 @@ import (
 	"github.com/ClusterCockpit/cc-backend/graph/model"
 	"github.com/ClusterCockpit/cc-backend/schema"
 	sq "github.com/Masterminds/squirrel"
+	"github.com/iamlouk/lrucache"
 	"github.com/jmoiron/sqlx"
 )

@@ -20,25 +21,27 @@ type JobRepository struct {
 	DB *sqlx.DB

 	stmtCache *sq.StmtCache
+	cache     *lrucache.Cache
 }

 func (r *JobRepository) Init() error {
 	r.stmtCache = sq.NewStmtCache(r.DB)
+	r.cache = lrucache.New(1024 * 1024)
 	return nil
 }

 var jobColumns []string = []string{
-	"job.id", "job.job_id", "job.user", "job.project", "job.cluster", "job.start_time", "job.partition", "job.array_job_id",
+	"job.id", "job.job_id", "job.user", "job.project", "job.cluster", "job.subcluster", "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",
+	"job.duration", "job.walltime", "job.resources", // "job.meta_data",
 }

 func scanJob(row interface{ Scan(...interface{}) error }) (*schema.Job, error) {
 	job := &schema.Job{}
 	if err := row.Scan(
-		&job.ID, &job.JobID, &job.User, &job.Project, &job.Cluster, &job.StartTimeUnix, &job.Partition, &job.ArrayJobId,
+		&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.RawResources /*&job.MetaData*/); err != nil {
+		&job.Duration, &job.Walltime, &job.RawResources /*&job.MetaData*/); err != nil {
 		return nil, err
 	}

@@ -56,6 +59,12 @@ func scanJob(row interface{ Scan(...interface{}) error }) (*schema.Job, error) {
 }

 func (r *JobRepository) FetchMetadata(job *schema.Job) (map[string]string, error) {
+	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 {
 		return nil, err
@@ -69,9 +78,42 @@ func (r *JobRepository) FetchMetadata(job *schema.Job) (map[string]string, error
 		return nil, err
 	}

+	r.cache.Put(cachekey, job.MetaData, len(job.RawMetaData), 24*time.Hour)
 	return job.MetaData, nil
 }

+func (r *JobRepository) UpdateMetadata(job *schema.Job, key, val string) (err error) {
+	cachekey := fmt.Sprintf("metadata:%d", job.ID)
+	r.cache.Del(cachekey)
+	if job.MetaData == nil {
+		if _, err = r.FetchMetadata(job); err != nil {
+			return err
+		}
+	}
+
+	if job.MetaData != nil {
+		cpy := make(map[string]string, len(job.MetaData)+1)
+		for k, v := range job.MetaData {
+			cpy[k] = v
+		}
+		cpy[key] = val
+		job.MetaData = cpy
+	} else {
+		job.MetaData = map[string]string{key: val}
+	}
+
+	if job.RawMetaData, err = json.Marshal(job.MetaData); err != nil {
+		return err
+	}
+
+	if _, err = sq.Update("job").Set("meta_data", job.RawMetaData).Where("job.id = ?", job.ID).RunWith(r.stmtCache).Exec(); err != nil {
+		return err
+	}
+
+	r.cache.Put(cachekey, job.MetaData, len(job.RawMetaData), 24*time.Hour)
+	return nil
+}
+
 // Find executes a SQL query to find a specific batch job.
 // The job is queried using the batch job id, the cluster name,
 // and the start time of the job in UNIX epoch time seconds.
@@ -120,11 +162,11 @@ func (r *JobRepository) Start(job *schema.JobMeta) (id int64, err error) {
 	}

 	res, err := r.DB.NamedExec(`INSERT INTO job (
-		job_id, user, project, cluster, `+"`partition`"+`, array_job_id, num_nodes, num_hwthreads, num_acc,
-		exclusive, monitoring_status, smt, job_state, start_time, duration, resources, meta_data
+		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
 	) VALUES (
-		:job_id, :user, :project, :cluster, :partition, :array_job_id, :num_nodes, :num_hwthreads, :num_acc,
-		:exclusive, :monitoring_status, :smt, :job_state, :start_time, :duration, :resources, :meta_data
+		: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
 	);`, job)
 	if err != nil {
 		return -1, err
@@ -260,3 +302,19 @@ func (r *JobRepository) FindJobOrUser(ctx context.Context, searchterm string) (j

 	return 0, "", ErrNotFound
 }
+
+func (r *JobRepository) Partitions(cluster string) ([]string, error) {
+	var err error
+	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 {
+			return nil, 0, 1000
+		}
+
+		return parts, 1 * time.Hour, 1
+	})
+	if err != nil {
+		return nil, err
+	}
+	return partitions.([]string), nil
+}
--- a/repository/job_test.go
+++ b/repository/job_test.go
@@ -5,14 +5,17 @@ import (
 	"testing"

 	"github.com/jmoiron/sqlx"
-
-	"github.com/ClusterCockpit/cc-backend/test"
+	_ "github.com/mattn/go-sqlite3"
 )

 var db *sqlx.DB

 func init() {
-	db = test.InitDB()
+	var err error
+	db, err = sqlx.Open("sqlite3", "../test/test.db")
+	if err != nil {
+		fmt.Println(err)
+	}
 }

 func setup(t *testing.T) *JobRepository {
--- a/routes.go
+++ b/routes.go
@@ -9,6 +9,9 @@ import (

 	"github.com/ClusterCockpit/cc-backend/auth"
 	"github.com/ClusterCockpit/cc-backend/config"
+	"github.com/ClusterCockpit/cc-backend/graph"
+	"github.com/ClusterCockpit/cc-backend/graph/model"
+	"github.com/ClusterCockpit/cc-backend/log"
 	"github.com/ClusterCockpit/cc-backend/schema"
 	"github.com/ClusterCockpit/cc-backend/templates"
 	"github.com/gorilla/mux"
@@ -24,6 +27,136 @@ type Route struct {
 	Setup    func(i InfoType, r *http.Request) InfoType
 }

+var routes []Route = []Route{
+	{"/", "home.tmpl", "ClusterCockpit", false, setupHomeRoute},
+	{"/config", "config.tmpl", "Settings", false, func(i InfoType, r *http.Request) InfoType { return i }},
+	{"/monitoring/jobs/", "monitoring/jobs.tmpl", "Jobs - ClusterCockpit", true, func(i InfoType, r *http.Request) InfoType { return i }},
+	{"/monitoring/job/{id:[0-9]+}", "monitoring/job.tmpl", "Job <ID> - ClusterCockpit", false, setupJobRoute},
+	{"/monitoring/users/", "monitoring/list.tmpl", "Users - ClusterCockpit", true, func(i InfoType, r *http.Request) InfoType { i["listType"] = "USER"; return i }},
+	{"/monitoring/projects/", "monitoring/list.tmpl", "Projects - ClusterCockpit", true, func(i InfoType, r *http.Request) InfoType { i["listType"] = "PROJECT"; return i }},
+	{"/monitoring/tags/", "monitoring/taglist.tmpl", "Tags - ClusterCockpit", false, setupTaglistRoute},
+	{"/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},
+}
+
+func setupHomeRoute(i InfoType, r *http.Request) InfoType {
+	type cluster struct {
+		Name            string
+		RunningJobs     int
+		TotalJobs       int
+		RecentShortJobs int
+	}
+
+	runningJobs, err := jobRepo.CountGroupedJobs(r.Context(), model.AggregateCluster, []*model.JobFilter{{
+		State: []schema.JobState{schema.JobStateRunning},
+	}}, nil)
+	if err != nil {
+		log.Errorf("failed to count jobs: %s", err.Error())
+		runningJobs = map[string]int{}
+	}
+	totalJobs, err := jobRepo.CountGroupedJobs(r.Context(), model.AggregateCluster, nil, nil)
+	if err != nil {
+		log.Errorf("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: &model.TimeRange{From: &from, To: nil},
+		Duration:  &model.IntRange{From: 0, To: graph.ShortJobDuration},
+	}}, nil)
+	if err != nil {
+		log.Errorf("failed to count jobs: %s", err.Error())
+		recentShortJobs = map[string]int{}
+	}
+
+	clusters := make([]cluster, 0)
+	for _, c := range config.Clusters {
+		clusters = append(clusters, cluster{
+			Name:            c.Name,
+			RunningJobs:     runningJobs[c.Name],
+			TotalJobs:       totalJobs[c.Name],
+			RecentShortJobs: recentShortJobs[c.Name],
+		})
+	}
+
+	i["clusters"] = clusters
+	return i
+}
+
+func setupJobRoute(i InfoType, r *http.Request) InfoType {
+	i["id"] = mux.Vars(r)["id"]
+	return i
+}
+
+func setupUserRoute(i InfoType, r *http.Request) InfoType {
+	username := mux.Vars(r)["id"]
+	i["id"] = username
+	i["username"] = username
+	if user, _ := auth.FetchUser(r.Context(), jobRepo.DB, username); user != nil {
+		i["name"] = user.Name
+		i["email"] = user.Email
+	}
+	return i
+}
+
+func setupClusterRoute(i InfoType, r *http.Request) InfoType {
+	vars := mux.Vars(r)
+	i["id"] = vars["cluster"]
+	i["cluster"] = vars["cluster"]
+	from, to := r.URL.Query().Get("from"), r.URL.Query().Get("to")
+	if from != "" || to != "" {
+		i["from"] = from
+		i["to"] = to
+	}
+	return i
+}
+
+func setupNodeRoute(i InfoType, r *http.Request) InfoType {
+	vars := mux.Vars(r)
+	i["cluster"] = vars["cluster"]
+	i["hostname"] = vars["hostname"]
+	from, to := r.URL.Query().Get("from"), r.URL.Query().Get("to")
+	if from != "" || to != "" {
+		i["from"] = from
+		i["to"] = to
+	}
+	return i
+}
+
+func setupAnalysisRoute(i InfoType, r *http.Request) InfoType {
+	i["cluster"] = mux.Vars(r)["cluster"]
+	return i
+}
+
+func setupTaglistRoute(i InfoType, r *http.Request) InfoType {
+	var username *string = nil
+	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleAdmin) {
+		username = &user.Username
+	}
+
+	tags, counts, err := jobRepo.CountTags(username)
+	tagMap := make(map[string][]map[string]interface{})
+	if err != nil {
+		log.Errorf("GetTags failed: %s", err.Error())
+		i["tagmap"] = tagMap
+		return i
+	}
+
+	for _, tag := range tags {
+		tagItem := map[string]interface{}{
+			"id":    tag.ID,
+			"name":  tag.Name,
+			"count": counts[tag.Name],
+		}
+		tagMap[tag.Type] = append(tagMap[tag.Type], tagItem)
+	}
+	i["tagmap"] = tagMap
+	return i
+}
+
 func buildFilterPresets(query url.Values) map[string]interface{} {
 	filterPresets := map[string]interface{}{}

@@ -41,8 +174,8 @@ func buildFilterPresets(query url.Values) map[string]interface{} {
 		filterPresets["user"] = query.Get("user")
 		filterPresets["userMatch"] = "eq"
 	}
-	if query.Get("state") != "" && schema.JobState(query.Get("state")).Valid() {
-		filterPresets["state"] = query.Get("state")
+	if len(query["state"]) != 0 {
+		filterPresets["state"] = query["state"]
 	}
 	if rawtags, ok := query["tag"]; ok {
 		tags := make([]int, len(rawtags))
@@ -55,6 +188,16 @@ func buildFilterPresets(query url.Values) map[string]interface{} {
 		}
 		filterPresets["tags"] = tags
 	}
+	if query.Get("duration") != "" {
+		parts := strings.Split(query.Get("duration"), "-")
+		if len(parts) == 2 {
+			a, e1 := strconv.Atoi(parts[0])
+			b, e2 := strconv.Atoi(parts[1])
+			if e1 == nil && e2 == nil {
+				filterPresets["duration"] = map[string]int{"from": a, "to": b}
+			}
+		}
+	}
 	if query.Get("numNodes") != "" {
 		parts := strings.Split(query.Get("numNodes"), "-")
 		if len(parts) == 2 {
@@ -65,6 +208,16 @@ func buildFilterPresets(query url.Values) map[string]interface{} {
 			}
 		}
 	}
+	if query.Get("numAccelerators") != "" {
+		parts := strings.Split(query.Get("numAccelerators"), "-")
+		if len(parts) == 2 {
+			a, e1 := strconv.Atoi(parts[0])
+			b, e2 := strconv.Atoi(parts[1])
+			if e1 == nil && e2 == nil {
+				filterPresets["numAccelerators"] = map[string]int{"from": a, "to": b}
+			}
+		}
+	}
 	if query.Get("jobId") != "" {
 		filterPresets["jobId"] = query.Get("jobId")
 	}
--- a/runtimeSetup.go
+++ b/runtimeSetup.go
@@ -12,6 +12,9 @@ import (
 	"syscall"
 )

+// Very simple and limited .env file reader.
+// All variable definitions found are directly
+// added to the processes environment.
 func loadEnv(file string) error {
 	f, err := os.Open(file)
 	if err != nil {
@@ -74,6 +77,10 @@ func loadEnv(file string) error {
 	return s.Err()
 }

+// Changes the processes user and group to that
+// specified in the config.json. The go runtime
+// takes care of all threads (and not only the calling one)
+// executing the underlying systemcall.
 func dropPrivileges() error {
 	if programConfig.Group != "" {
 		g, err := user.LookupGroup(programConfig.Group)
--- a/schema/job.go
+++ b/schema/job.go
@@ -14,6 +14,7 @@ type BaseJob struct {
 	User             string            `json:"user" db:"user"`
 	Project          string            `json:"project" db:"project"`
 	Cluster          string            `json:"cluster" db:"cluster"`
+	SubCluster       string            `json:"subCluster" db:"subcluster"`
 	Partition        string            `json:"partition" db:"partition"`
 	ArrayJobId       int32             `json:"arrayJobId" db:"array_job_id"`
 	NumNodes         int32             `json:"numNodes" db:"num_nodes"`
@@ -24,6 +25,7 @@ type BaseJob struct {
 	SMT              int32             `json:"smt" db:"smt"`
 	State            JobState          `json:"jobState" db:"job_state"`
 	Duration         int32             `json:"duration" db:"duration"`
+	Walltime         int64             `json:"walltime" db:"walltime"`
 	Tags             []*Tag            `json:"tags"`
 	RawResources     []byte            `json:"-" db:"resources"`
 	Resources        []*Resource       `json:"resources"`
@@ -54,7 +56,6 @@ type Job struct {
 type JobMeta struct {
 	ID *int64 `json:"id,omitempty"` // never used in the job-archive, only available via REST-API
 	BaseJob
-	Walltime   int64                    `json:"walltime"` // TODO: Missing in DB
 	StartTime  int64                    `json:"startTime" db:"start_time"`
 	Statistics map[string]JobStatistics `json:"statistics,omitempty"`
 }
--- a/server.go
+++ b/server.go
@@ -25,12 +25,11 @@ import (
 	"github.com/ClusterCockpit/cc-backend/config"
 	"github.com/ClusterCockpit/cc-backend/graph"
 	"github.com/ClusterCockpit/cc-backend/graph/generated"
-	"github.com/ClusterCockpit/cc-backend/graph/model"
 	"github.com/ClusterCockpit/cc-backend/log"
 	"github.com/ClusterCockpit/cc-backend/metricdata"
 	"github.com/ClusterCockpit/cc-backend/repository"
-	"github.com/ClusterCockpit/cc-backend/schema"
 	"github.com/ClusterCockpit/cc-backend/templates"
+	"github.com/google/gops/agent"
 	"github.com/gorilla/handlers"
 	"github.com/gorilla/mux"
 	"github.com/jmoiron/sqlx"
@@ -39,7 +38,6 @@ import (
 	_ "github.com/mattn/go-sqlite3"
 )

-var db *sqlx.DB
 var jobRepo *repository.JobRepository

 // Format of the configurartion (file). See below for the defaults.
@@ -83,6 +81,10 @@ type ProgramConfig struct {
 	HttpsCertFile string `json:"https-cert-file"`
 	HttpsKeyFile  string `json:"https-key-file"`

+	// If not the empty string and `addr` does not end in ":80",
+	// redirect every request incoming at port 80 to that url.
+	RedirectHttpTo string `json:"redirect-http-to"`
+
 	// 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"`
@@ -102,8 +104,6 @@ var programConfig ProgramConfig = ProgramConfig{
 	LdapConfig:            nil,
 	SessionMaxAge:         "168h",
 	JwtMaxAge:             "0",
-	HttpsCertFile:         "",
-	HttpsKeyFile:          "",
 	UiDefaults: map[string]interface{}{
 		"analysis_view_histogramMetrics":     []string{"flops_any", "mem_bw", "mem_used"},
 		"analysis_view_scatterPlotMetrics":   [][]string{{"flops_any", "mem_bw"}, {"flops_any", "cpu_load"}, {"cpu_load", "mem_bw"}},
@@ -112,7 +112,7 @@ var programConfig ProgramConfig = ProgramConfig{
 		"job_view_selectedMetrics":           []string{"flops_any", "mem_bw", "mem_used"},
 		"plot_general_colorBackground":       true,
 		"plot_general_colorscheme":           []string{"#00bfff", "#0000ff", "#ff00ff", "#ff0000", "#ff8000", "#ffff00", "#80ff00"},
-		"plot_general_lineWidth":             1,
+		"plot_general_lineWidth":             3,
 		"plot_list_hideShortRunningJobs":     5 * 60,
 		"plot_list_jobsPerPage":              10,
 		"plot_list_selectedMetrics":          []string{"cpu_load", "ipc", "mem_used", "flops_any", "mem_bw"},
@@ -124,146 +124,28 @@ var programConfig ProgramConfig = ProgramConfig{
 	},
 }

-func setupHomeRoute(i InfoType, r *http.Request) InfoType {
-	type cluster struct {
-		Name            string
-		RunningJobs     int
-		TotalJobs       int
-		RecentShortJobs int
-	}
-
-	runningJobs, err := jobRepo.CountGroupedJobs(r.Context(), model.AggregateCluster, []*model.JobFilter{{
-		State: []schema.JobState{schema.JobStateRunning},
-	}}, nil)
-	if err != nil {
-		log.Errorf("failed to count jobs: %s", err.Error())
-		runningJobs = map[string]int{}
-	}
-	totalJobs, err := jobRepo.CountGroupedJobs(r.Context(), model.AggregateCluster, nil, nil)
-	if err != nil {
-		log.Errorf("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: &model.TimeRange{From: &from, To: nil},
-		Duration:  &model.IntRange{From: 0, To: graph.ShortJobDuration},
-	}}, nil)
-	if err != nil {
-		log.Errorf("failed to count jobs: %s", err.Error())
-		recentShortJobs = map[string]int{}
-	}
-
-	clusters := make([]cluster, 0)
-	for _, c := range config.Clusters {
-		clusters = append(clusters, cluster{
-			Name:            c.Name,
-			RunningJobs:     runningJobs[c.Name],
-			TotalJobs:       totalJobs[c.Name],
-			RecentShortJobs: recentShortJobs[c.Name],
-		})
-	}
-
-	i["clusters"] = clusters
-	return i
-}
-
-func setupJobRoute(i InfoType, r *http.Request) InfoType {
-	i["id"] = mux.Vars(r)["id"]
-	return i
-}
-
-func setupUserRoute(i InfoType, r *http.Request) InfoType {
-	i["id"] = mux.Vars(r)["id"]
-	i["username"] = mux.Vars(r)["id"]
-	return i
-}
-
-func setupClusterRoute(i InfoType, r *http.Request) InfoType {
-	vars := mux.Vars(r)
-	i["id"] = vars["cluster"]
-	i["cluster"] = vars["cluster"]
-	from, to := r.URL.Query().Get("from"), r.URL.Query().Get("to")
-	if from != "" || to != "" {
-		i["from"] = from
-		i["to"] = to
-	}
-	return i
-}
-
-func setupNodeRoute(i InfoType, r *http.Request) InfoType {
-	vars := mux.Vars(r)
-	i["cluster"] = vars["cluster"]
-	i["hostname"] = vars["hostname"]
-	from, to := r.URL.Query().Get("from"), r.URL.Query().Get("to")
-	if from != "" || to != "" {
-		i["from"] = from
-		i["to"] = to
-	}
-	return i
-}
-
-func setupAnalysisRoute(i InfoType, r *http.Request) InfoType {
-	i["cluster"] = mux.Vars(r)["cluster"]
-	return i
-}
-
-func setupTaglistRoute(i InfoType, r *http.Request) InfoType {
-	var username *string = nil
-	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleAdmin) {
-		username = &user.Username
-	}
-
-	tags, counts, err := jobRepo.CountTags(username)
-	tagMap := make(map[string][]map[string]interface{})
-	if err != nil {
-		log.Errorf("GetTags failed: %s", err.Error())
-		i["tagmap"] = tagMap
-		return i
-	}
-
-	for _, tag := range tags {
-		tagItem := map[string]interface{}{
-			"id":    tag.ID,
-			"name":  tag.Name,
-			"count": counts[tag.Name],
-		}
-		tagMap[tag.Type] = append(tagMap[tag.Type], tagItem)
-	}
-	log.Infof("TAGS %+v", tags)
-	i["tagmap"] = tagMap
-	return i
-}
-
-var routes []Route = []Route{
-	{"/", "home.tmpl", "ClusterCockpit", false, setupHomeRoute},
-	{"/config", "config.tmpl", "Settings", false, func(i InfoType, r *http.Request) InfoType { return i }},
-	{"/monitoring/jobs/", "monitoring/jobs.tmpl", "Jobs - ClusterCockpit", true, func(i InfoType, r *http.Request) InfoType { return i }},
-	{"/monitoring/job/{id:[0-9]+}", "monitoring/job.tmpl", "Job <ID> - ClusterCockpit", false, setupJobRoute},
-	{"/monitoring/users/", "monitoring/list.tmpl", "Users - ClusterCockpit", true, func(i InfoType, r *http.Request) InfoType { i["listType"] = "USER"; return i }},
-	{"/monitoring/projects/", "monitoring/list.tmpl", "Projects - ClusterCockpit", true, func(i InfoType, r *http.Request) InfoType { i["listType"] = "PROJECT"; return i }},
-	{"/monitoring/tags/", "monitoring/taglist.tmpl", "Tags - ClusterCockpit", false, setupTaglistRoute},
-	{"/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},
-}
-
 func main() {
-	var flagReinitDB, flagStopImmediately, flagSyncLDAP bool
+	var flagReinitDB, flagStopImmediately, flagSyncLDAP, flagGops bool
 	var flagConfigFile, flagImportJob string
 	var flagNewUser, flagDelUser, flagGenJWT string
-	flag.BoolVar(&flagReinitDB, "init-db", false, "Go through job-archive and re-initialize `job`, `tag`, and `jobtag` tables")
-	flag.BoolVar(&flagSyncLDAP, "sync-ldap", false, "Sync the `user` table with ldap")
+	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(&flagStopImmediately, "no-server", false, "Do not start a server, stop right after initialization and argument handling")
-	flag.StringVar(&flagConfigFile, "config", "", "Location of the config file for this server (overwrites the defaults)")
+	flag.BoolVar(&flagGops, "gops", false, "Listen via github.com/google/gops/agent (for debugging)")
+	flag.StringVar(&flagConfigFile, "config", "", "Overwrite the global config options by those specified in `config.json`")
 	flag.StringVar(&flagNewUser, "add-user", "", "Add a new user. Argument format: `<username>:[admin,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 the username")
+	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.Parse()

+	// See https://github.com/google/gops (Runtime overhead is almost zero)
+	if flagGops {
+		if err := agent.Listen(agent.Options{}); err != nil {
+			log.Fatalf("gops/agent.Listen failed: %s", err.Error())
+		}
+	}
+
 	if err := loadEnv("./.env"); err != nil && !os.IsNotExist(err) {
 		log.Fatalf("parsing './.env' file failed: %s", err.Error())
 	}
@@ -281,18 +163,24 @@ func main() {
 		}
 	}

+	// As a special case for `db`, allow using an environment variable instead of the value
+	// stored in the config. This can be done for people having security concerns about storing
+	// the password for their mysql database in the config.json.
 	if strings.HasPrefix(programConfig.DB, "env:") {
 		envvar := strings.TrimPrefix(programConfig.DB, "env:")
 		programConfig.DB = os.Getenv(envvar)
 	}

 	var err error
+	var db *sqlx.DB
 	if programConfig.DBDriver == "sqlite3" {
 		db, err = sqlx.Open("sqlite3", fmt.Sprintf("%s?_foreign_keys=on", programConfig.DB))
 		if err != nil {
 			log.Fatal(err)
 		}

+		// sqlite does not multithread. Having more than one connection open would just mean
+		// waiting for locks.
 		db.SetMaxOpenConns(1)
 	} else if programConfig.DBDriver == "mysql" {
 		db, err = sqlx.Open("mysql", fmt.Sprintf("%s?multiStatements=true", programConfig.DB))
@@ -307,7 +195,9 @@ func main() {
 		log.Fatalf("unsupported database driver: %s", programConfig.DBDriver)
 	}

-	// Initialize sub-modules...
+	// Initialize sub-modules and handle all command line flags.
+	// The order here is important! For example, the metricdata package
+	// depends on the config package.

 	var authentication *auth.Authentication
 	if !programConfig.DisableAuthentication {
@@ -370,7 +260,7 @@ func main() {
 	}

 	if flagReinitDB {
-		if err := initDB(db, programConfig.JobArchive); err != nil {
+		if err := repository.InitDB(db, programConfig.JobArchive); err != nil {
 			log.Fatal(err)
 		}
 	}
@@ -390,11 +280,13 @@ func main() {
 		return
 	}

-	// Build routes...
+	// Setup the http.Handler/Router used by the server

 	resolver := &graph.Resolver{DB: db, Repo: jobRepo}
 	graphQLEndpoint := handler.NewDefaultServer(generated.NewExecutableSchema(generated.Config{Resolvers: resolver}))
 	if os.Getenv("DEBUG") != "1" {
+		// Having this handler means that a error message is returned via GraphQL instead of the connection simply beeing closed.
+		// The problem with this is that then, no more stacktrace is printed to stderr.
 		graphQLEndpoint.SetRecoverFunc(func(ctx context.Context, err interface{}) error {
 			switch e := err.(type) {
 			case string:
@@ -407,7 +299,6 @@ func main() {
 		})
 	}

-	graphQLPlayground := playground.Handler("GraphQL playground", "/query")
 	api := &api.RestApi{
 		JobRepository:   jobRepo,
 		Resolver:        resolver,
@@ -415,33 +306,21 @@ func main() {
 		Authentication:  authentication,
 	}

-	handleGetLogin := func(rw http.ResponseWriter, r *http.Request) {
-		templates.Render(rw, r, "login.tmpl", &templates.Page{
-			Title: "Login",
-		})
-	}
-
 	r := mux.NewRouter()
-	r.NotFoundHandler = http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
-		templates.Render(rw, r, "404.tmpl", &templates.Page{
-			Title: "Not found",
-		})
-	})

-	r.Handle("/playground", graphQLPlayground)
-
-	r.HandleFunc("/login", handleGetLogin).Methods(http.MethodGet)
+	r.HandleFunc("/login", func(rw http.ResponseWriter, r *http.Request) {
+		templates.Render(rw, r, "login.tmpl", &templates.Page{Title: "Login"})
+	}).Methods(http.MethodGet)
 	r.HandleFunc("/imprint", func(rw http.ResponseWriter, r *http.Request) {
-		templates.Render(rw, r, "imprint.tmpl", &templates.Page{
-			Title: "Imprint",
-		})
+		templates.Render(rw, r, "imprint.tmpl", &templates.Page{Title: "Imprint"})
 	})
 	r.HandleFunc("/privacy", func(rw http.ResponseWriter, r *http.Request) {
-		templates.Render(rw, r, "privacy.tmpl", &templates.Page{
-			Title: "Privacy",
-		})
+		templates.Render(rw, r, "privacy.tmpl", &templates.Page{Title: "Privacy"})
 	})

+	// Some routes, such as /login or /query, should only be accessible to a user that is logged in.
+	// Those should be mounted to this subrouter. If authentication is enabled, a middleware will prevent
+	// any unauthenticated accesses.
 	secured := r.PathPrefix("/").Subrouter()
 	if !programConfig.DisableAuthentication {
 		r.Handle("/login", authentication.Login(
@@ -480,8 +359,11 @@ func main() {
 				})
 		})
 	}
+
+	r.Handle("/playground", playground.Handler("GraphQL playground", "/query"))
 	secured.Handle("/query", graphQLEndpoint)

+	// Send a searchId and then reply with a redirect to a user or job.
 	secured.HandleFunc("/search", func(rw http.ResponseWriter, r *http.Request) {
 		if search := r.URL.Query().Get("searchId"); search != "" {
 			job, username, err := api.JobRepository.FindJobOrUser(r.Context(), search)
@@ -505,6 +387,7 @@ func main() {
 		}
 	})

+	// Mount all /monitoring/... and /api/... routes.
 	setupRoutes(secured, routes)
 	api.MountRoutes(secured)

@@ -515,11 +398,18 @@ func main() {
 		handlers.AllowedHeaders([]string{"X-Requested-With", "Content-Type", "Authorization"}),
 		handlers.AllowedMethods([]string{"GET", "POST", "HEAD", "OPTIONS"}),
 		handlers.AllowedOrigins([]string{"*"})))
-	handler := handlers.CustomLoggingHandler(log.InfoWriter, r, func(w io.Writer, params handlers.LogFormatterParams) {
-		log.Finfof(w, "%s %s (%d, %.02fkb, %dms)",
-			params.Request.Method, params.URL.RequestURI(),
-			params.StatusCode, float32(params.Size)/1024,
-			time.Since(params.TimeStamp).Milliseconds())
+	handler := handlers.CustomLoggingHandler(io.Discard, r, func(_ io.Writer, params handlers.LogFormatterParams) {
+		if strings.HasPrefix(params.Request.RequestURI, "/api/") {
+			log.Infof("%s %s (%d, %.02fkb, %dms)",
+				params.Request.Method, params.URL.RequestURI(),
+				params.StatusCode, float32(params.Size)/1024,
+				time.Since(params.TimeStamp).Milliseconds())
+		} else {
+			log.Debugf("%s %s (%d, %.02fkb, %dms)",
+				params.Request.Method, params.URL.RequestURI(),
+				params.StatusCode, float32(params.Size)/1024,
+				time.Since(params.TimeStamp).Milliseconds())
+		}
 	})

 	var wg sync.WaitGroup
@@ -537,6 +427,12 @@ func main() {
 		log.Fatal(err)
 	}

+	if !strings.HasSuffix(programConfig.Addr, ":80") && programConfig.RedirectHttpTo != "" {
+		go func() {
+			http.ListenAndServe(":80", http.RedirectHandler(programConfig.RedirectHttpTo, http.StatusMovedPermanently))
+		}()
+	}
+
 	if programConfig.HttpsCertFile != "" && programConfig.HttpsKeyFile != "" {
 		cert, err := tls.LoadX509KeyPair(programConfig.HttpsCertFile, programConfig.HttpsKeyFile)
 		if err != nil {
--- a/startDemo.sh
+++ b/startDemo.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+mkdir ./var
+cd ./var
+
+wget https://hpc-mover.rrze.uni-erlangen.de/HPC-Data/0x7b58aefb/eig7ahyo6fo2bais0ephuf2aitohv1ai/job-archive.tar.xz
+tar xJf job-archive.tar.xz
+rm ./job-archive.tar.xz
+
+touch ./job.db
+cd ../frontend
+yarn install
+yarn build
+
+cd ..
+go get
+go build
+
+./cc-backend --init-db --add-user demo:admin:AdminDev --no-server
+./cc-backend
--- a/templates/config.tmpl
+++ b/templates/config.tmpl
@@ -79,9 +79,7 @@
                            listElement.querySelectorAll('button.get-jwt').forEach(e => e.addEventListener('click', event => {
                                let row = event.target.parentElement.parentElement
                                let username = row.children[0].innerText
-                                let formData = new FormData()
-                                formData.append('username', username)
-                                fetch('/api/jwt/', { method: 'POST', body: formData })
+                                fetch(`/api/jwt/?username=${username}`)
                                    .then(res => res.text())
                                    .then(text => alert(text))
                            }))
--- a/test/api_test.go
+++ b/test/api_test.go
@@ -1,4 +1,4 @@
-package main
+package test

 import (
 	"bytes"
@@ -11,6 +11,7 @@ import (
 	"path/filepath"
 	"reflect"
 	"strconv"
+	"strings"
 	"testing"

 	"github.com/ClusterCockpit/cc-backend/api"
@@ -21,18 +22,21 @@ import (
 	"github.com/ClusterCockpit/cc-backend/schema"
 	"github.com/gorilla/mux"
 	"github.com/jmoiron/sqlx"
+
+	_ "github.com/mattn/go-sqlite3"
 )

 func setup(t *testing.T) *api.RestApi {
-	if db != nil {
-		panic("prefer using sub-tests (`t.Run`) or implement `cleanup` before calling setup twice.")
-	}
-
 	const testclusterJson = `{
 		"name": "testcluster",
-		"partitions": [
+		"subClusters": [
 			{
-				"name": "default",
+				"name": "sc0",
+				"nodes": "host120,host121,host122"
+			},
+			{
+				"name": "sc1",
+				"nodes": "host123,host124,host125",
 				"processorType": "Intel Core i7-4770",
 				"socketsPerNode": 1,
 				"coresPerSocket": 4,
@@ -91,17 +95,17 @@ func setup(t *testing.T) *api.RestApi {
 	}
 	f.Close()

-	db, err = sqlx.Open("sqlite3", fmt.Sprintf("%s?_foreign_keys=on", dbfilepath))
+	db, err := sqlx.Open("sqlite3", fmt.Sprintf("%s?_foreign_keys=on", dbfilepath))
 	if err != nil {
 		t.Fatal(err)
 	}

 	db.SetMaxOpenConns(1)
-	if _, err := db.Exec(JOBS_DB_SCHEMA); err != nil {
+	if _, err := db.Exec(repository.JobsDBSchema); err != nil {
 		t.Fatal(err)
 	}

-	if err := config.Init(db, false, programConfig.UiDefaults, jobarchive); err != nil {
+	if err := config.Init(db, false, map[string]interface{}{}, jobarchive); err != nil {
 		t.Fatal(err)
 	}

@@ -141,7 +145,7 @@ func TestRestApi(t *testing.T) {
 				Timestep: 60,
 				Series: []schema.Series{
 					{
-						Hostname:   "testhost",
+						Hostname:   "host123",
 						Statistics: &schema.MetricStatistics{Min: 0.1, Avg: 0.2, Max: 0.3},
 						Data:       []schema.Float{0.1, 0.1, 0.1, 0.2, 0.2, 0.2, 0.3, 0.3, 0.3},
 					},
@@ -173,7 +177,7 @@ func TestRestApi(t *testing.T) {
    	"tags":             [{ "type": "testTagType", "name": "testTagName" }],
    	"resources": [
        	{
-            	"hostname": "testhost",
+            	"hostname": "host123",
            	"hwthreads": [0, 1, 2, 3, 4, 5, 6, 7]
        	}
    	],
@@ -211,6 +215,7 @@ func TestRestApi(t *testing.T) {
 			job.User != "testuser" ||
 			job.Project != "testproj" ||
 			job.Cluster != "testcluster" ||
+			job.SubCluster != "sc1" ||
 			job.Partition != "default" ||
 			job.ArrayJobId != 0 ||
 			job.NumNodes != 1 ||
@@ -219,7 +224,7 @@ func TestRestApi(t *testing.T) {
 			job.Exclusive != 1 ||
 			job.MonitoringStatus != 1 ||
 			job.SMT != 1 ||
-			!reflect.DeepEqual(job.Resources, []*schema.Resource{{Hostname: "testhost", HWThreads: []int{0, 1, 2, 3, 4, 5, 6, 7}}}) ||
+			!reflect.DeepEqual(job.Resources, []*schema.Resource{{Hostname: "host123", HWThreads: []int{0, 1, 2, 3, 4, 5, 6, 7}}}) ||
 			job.StartTime.Unix() != 123456789 {
 			t.Fatalf("unexpected job properties: %#v", job)
 		}
@@ -291,4 +296,18 @@ func TestRestApi(t *testing.T) {
 			t.Fatal("unexpected data fetched from archive")
 		}
 	})
+
+	t.Run("CheckDoubleStart", func(t *testing.T) {
+		// Starting a job with the same jobId and cluster should only be allowed if the startTime is far appart!
+		body := strings.Replace(startJobBody, `"startTime": 123456789`, `"startTime": 123456790`, -1)
+
+		req := httptest.NewRequest(http.MethodPost, "/api/jobs/start_job/", bytes.NewBuffer([]byte(body)))
+		recorder := httptest.NewRecorder()
+
+		r.ServeHTTP(recorder, req)
+		response := recorder.Result()
+		if response.StatusCode != http.StatusUnprocessableEntity {
+			t.Fatal(response.Status, recorder.Body.String())
+		}
+	})
 }
--- a/test/db.go
+++ b/test/db.go
@@ -1,26 +0,0 @@
-package test
-
-import (
-	"fmt"
-	"os"
-
-	"github.com/jmoiron/sqlx"
-	_ "github.com/mattn/go-sqlite3"
-)
-
-func InitDB() *sqlx.DB {
-
-	bp := "./"
-	ebp := os.Getenv("BASEPATH")
-
-	if ebp != "" {
-		bp = ebp + "test/"
-	}
-
-	db, err := sqlx.Open("sqlite3", bp+"test.db")
-	if err != nil {
-		fmt.Println(err)
-	}
-
-	return db
-}
--- a/test/test.db
+++ b/test/test.db