cc-backend/internal/repository/job.go
2023-02-21 16:21:47 +01:00

973 lines
30 KiB
Go

// Copyright (C) 2022 NHR@FAU, University Erlangen-Nuremberg.
// All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package repository
import (
"context"
"database/sql"
"encoding/json"
"errors"
"fmt"
"strconv"
"sync"
"time"
"github.com/99designs/gqlgen/graphql"
"github.com/ClusterCockpit/cc-backend/internal/auth"
"github.com/ClusterCockpit/cc-backend/internal/graph/model"
"github.com/ClusterCockpit/cc-backend/internal/metricdata"
"github.com/ClusterCockpit/cc-backend/pkg/archive"
"github.com/ClusterCockpit/cc-backend/pkg/log"
"github.com/ClusterCockpit/cc-backend/pkg/lrucache"
"github.com/ClusterCockpit/cc-backend/pkg/schema"
sq "github.com/Masterminds/squirrel"
"github.com/jmoiron/sqlx"
)
var (
jobRepoOnce sync.Once
jobRepoInstance *JobRepository
)
type JobRepository struct {
DB *sqlx.DB
driver string
stmtCache *sq.StmtCache
cache *lrucache.Cache
archiveChannel chan *schema.Job
archivePending sync.WaitGroup
}
func GetJobRepository() *JobRepository {
jobRepoOnce.Do(func() {
db := GetConnection()
jobRepoInstance = &JobRepository{
DB: db.DB,
driver: db.Driver,
stmtCache: sq.NewStmtCache(db.DB),
cache: lrucache.New(1024 * 1024),
archiveChannel: make(chan *schema.Job, 128),
}
// start archiving worker
go jobRepoInstance.archivingWorker()
})
return jobRepoInstance
}
var jobColumns []string = []string{
"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.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.SubCluster, &job.StartTimeUnix, &job.Partition, &job.ArrayJobId,
&job.NumNodes, &job.NumHWThreads, &job.NumAcc, &job.Exclusive, &job.MonitoringStatus, &job.SMT, &job.State,
&job.Duration, &job.Walltime, &job.RawResources /*&job.RawMetaData*/); err != nil {
log.Warn("Error while scanning rows")
return nil, err
}
if err := json.Unmarshal(job.RawResources, &job.Resources); err != nil {
log.Warn("Error while unmarhsaling raw resources json")
return nil, err
}
// if err := json.Unmarshal(job.RawMetaData, &job.MetaData); err != nil {
// return nil, err
// }
job.StartTime = time.Unix(job.StartTimeUnix, 0)
if job.Duration == 0 && job.State == schema.JobStateRunning {
job.Duration = int32(time.Since(job.StartTime).Seconds())
}
job.RawResources = nil
return job, nil
}
func (r *JobRepository) FetchJobName(job *schema.Job) (*string, error) {
start := time.Now()
cachekey := fmt.Sprintf("metadata:%d", job.ID)
if cached := r.cache.Get(cachekey, nil); cached != nil {
job.MetaData = cached.(map[string]string)
if jobName := job.MetaData["jobName"]; jobName != "" {
return &jobName, 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
}
if len(job.RawMetaData) == 0 {
return nil, nil
}
if err := json.Unmarshal(job.RawMetaData, &job.MetaData); err != nil {
return nil, err
}
r.cache.Put(cachekey, job.MetaData, len(job.RawMetaData), 24*time.Hour)
log.Infof("Timer FetchJobName %s", time.Since(start))
if jobName := job.MetaData["jobName"]; jobName != "" {
return &jobName, nil
} else {
return new(string), nil
}
}
func (r *JobRepository) FetchMetadata(job *schema.Job) (map[string]string, error) {
start := time.Now()
cachekey := fmt.Sprintf("metadata:%d", job.ID)
if cached := r.cache.Get(cachekey, nil); cached != nil {
job.MetaData = cached.(map[string]string)
return job.MetaData, nil
}
if err := sq.Select("job.meta_data").From("job").Where("job.id = ?", job.ID).
RunWith(r.stmtCache).QueryRow().Scan(&job.RawMetaData); err != nil {
log.Warn("Error while scanning for job metadata")
return nil, err
}
if len(job.RawMetaData) == 0 {
return nil, nil
}
if err := json.Unmarshal(job.RawMetaData, &job.MetaData); err != nil {
log.Warn("Error while unmarshaling raw metadata json")
return nil, err
}
r.cache.Put(cachekey, job.MetaData, len(job.RawMetaData), 24*time.Hour)
log.Infof("Timer FetchMetadata %s", time.Since(start))
return job.MetaData, nil
}
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 {
log.Warnf("Error while fetching metadata for job, DB ID '%v'", job.ID)
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 {
log.Warnf("Error while marshaling metadata for job, DB ID '%v'", job.ID)
return err
}
if _, err = sq.Update("job").Set("meta_data", job.RawMetaData).Where("job.id = ?", job.ID).RunWith(r.stmtCache).Exec(); err != nil {
log.Warnf("Error while updating metadata for job, DB ID '%v'", job.ID)
return err
}
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.
// It returns a pointer to a schema.Job data structure and an error variable.
// To check if no job was found test err == sql.ErrNoRows
func (r *JobRepository) Find(
jobId *int64,
cluster *string,
startTime *int64) (*schema.Job, error) {
start := time.Now()
q := sq.Select(jobColumns...).From("job").
Where("job.job_id = ?", *jobId)
if cluster != nil {
q = q.Where("job.cluster = ?", *cluster)
}
if startTime != nil {
q = q.Where("job.start_time = ?", *startTime)
}
log.Infof("Timer Find %s", time.Since(start))
return scanJob(q.RunWith(r.stmtCache).QueryRow())
}
// 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.
// It returns a pointer to a schema.Job data structure and an error variable.
// To check if no job was found test err == sql.ErrNoRows
func (r *JobRepository) FindAll(
jobId *int64,
cluster *string,
startTime *int64) ([]*schema.Job, error) {
start := time.Now()
q := sq.Select(jobColumns...).From("job").
Where("job.job_id = ?", *jobId)
if cluster != nil {
q = q.Where("job.cluster = ?", *cluster)
}
if startTime != nil {
q = q.Where("job.start_time = ?", *startTime)
}
rows, err := q.RunWith(r.stmtCache).Query()
if err != nil {
log.Error("Error while running query")
return nil, err
}
jobs := make([]*schema.Job, 0, 10)
for rows.Next() {
job, err := scanJob(rows)
if err != nil {
log.Warn("Error while scanning rows")
return nil, err
}
jobs = append(jobs, job)
}
log.Infof("Timer FindAll %s", time.Since(start))
return jobs, nil
}
// FindById executes a SQL query to find a specific batch job.
// The job is queried using the database id.
// It returns a pointer to a schema.Job data structure and an error variable.
// To check if no job was found test err == sql.ErrNoRows
func (r *JobRepository) FindById(jobId int64) (*schema.Job, error) {
q := sq.Select(jobColumns...).
From("job").Where("job.id = ?", jobId)
return scanJob(q.RunWith(r.stmtCache).QueryRow())
}
// Start inserts a new job in the table, returning the unique job ID.
// Statistics are not transfered!
func (r *JobRepository) Start(job *schema.JobMeta) (id int64, err error) {
job.RawResources, err = json.Marshal(job.Resources)
if err != nil {
return -1, fmt.Errorf("REPOSITORY/JOB > encoding resources field failed: %w", err)
}
job.RawMetaData, err = json.Marshal(job.MetaData)
if err != nil {
return -1, fmt.Errorf("REPOSITORY/JOB > encoding metaData field failed: %w", err)
}
res, err := r.DB.NamedExec(`INSERT INTO job (
job_id, user, project, cluster, subcluster, `+"`partition`"+`, array_job_id, num_nodes, num_hwthreads, num_acc,
exclusive, monitoring_status, smt, job_state, start_time, duration, walltime, resources, meta_data
) VALUES (
: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
}
return res.LastInsertId()
}
// Stop updates the job with the database id jobId using the provided arguments.
func (r *JobRepository) Stop(
jobId int64,
duration int32,
state schema.JobState,
monitoringStatus int32) (err error) {
stmt := sq.Update("job").
Set("job_state", state).
Set("duration", duration).
Set("monitoring_status", monitoringStatus).
Where("job.id = ?", jobId)
_, err = stmt.RunWith(r.stmtCache).Exec()
return
}
func (r *JobRepository) DeleteJobsBefore(startTime int64) (int, error) {
var cnt int
qs := fmt.Sprintf("SELECT count(*) FROM job WHERE job.start_time < %d", startTime)
err := r.DB.Get(&cnt, qs) //ignore error as it will also occur in delete statement
_, err = r.DB.Exec(`DELETE FROM job WHERE job.start_time < ?`, startTime)
if err != nil {
log.Errorf(" DeleteJobsBefore(%d): error %#v", startTime, err)
} else {
log.Infof("DeleteJobsBefore(%d): Deleted %d jobs", startTime, cnt)
}
return cnt, err
}
func (r *JobRepository) DeleteJobById(id int64) error {
_, err := r.DB.Exec(`DELETE FROM job WHERE job.id = ?`, id)
if err != nil {
log.Errorf("DeleteJobById(%d): error %#v", id, err)
} else {
log.Infof("DeleteJobById(%d): Success", id)
}
return err
}
// TODO: Use node hours instead: SELECT job.user, sum(job.num_nodes * (CASE WHEN job.job_state = "running" THEN CAST(strftime('%s', 'now') AS INTEGER) - job.start_time ELSE job.duration END)) as x FROM job GROUP BY user ORDER BY x DESC;
func (r *JobRepository) CountGroupedJobs(ctx context.Context, aggreg model.Aggregate, filters []*model.JobFilter, weight *model.Weights, limit *int) (map[string]int, error) {
start := time.Now()
if !aggreg.IsValid() {
return nil, errors.New("invalid aggregate")
}
runner := (sq.BaseRunner)(r.stmtCache)
count := "count(*) as count"
if weight != nil {
switch *weight {
case model.WeightsNodeCount:
count = "sum(job.num_nodes) as count"
case model.WeightsNodeHours:
now := time.Now().Unix()
count = fmt.Sprintf(`sum(job.num_nodes * (CASE WHEN job.job_state = "running" THEN %d - job.start_time ELSE job.duration END)) as count`, now)
runner = r.DB
default:
log.Infof("CountGroupedJobs() Weight %v unknown.", *weight)
}
}
q := sq.Select("job."+string(aggreg), count).From("job").GroupBy("job." + string(aggreg)).OrderBy("count DESC")
q = SecurityCheck(ctx, q)
for _, f := range filters {
q = BuildWhereClause(f, q)
}
if limit != nil {
q = q.Limit(uint64(*limit))
}
counts := map[string]int{}
rows, err := q.RunWith(runner).Query()
if err != nil {
log.Error("Error while running query")
return nil, err
}
for rows.Next() {
var group string
var count int
if err := rows.Scan(&group, &count); err != nil {
log.Warn("Error while scanning rows")
return nil, err
}
counts[group] = count
}
log.Infof("Timer CountGroupedJobs %s", time.Since(start))
return counts, nil
}
func (r *JobRepository) UpdateMonitoringStatus(job int64, monitoringStatus int32) (err error) {
stmt := sq.Update("job").
Set("monitoring_status", monitoringStatus).
Where("job.id = ?", job)
_, err = stmt.RunWith(r.stmtCache).Exec()
return
}
// Stop updates the job with the database id jobId using the provided arguments.
func (r *JobRepository) MarkArchived(
jobId int64,
monitoringStatus int32,
metricStats map[string]schema.JobStatistics) error {
stmt := sq.Update("job").
Set("monitoring_status", monitoringStatus).
Where("job.id = ?", jobId)
for metric, stats := range metricStats {
switch metric {
case "flops_any":
stmt = stmt.Set("flops_any_avg", stats.Avg)
case "mem_used":
stmt = stmt.Set("mem_used_max", stats.Max)
case "mem_bw":
stmt = stmt.Set("mem_bw_avg", stats.Avg)
case "load":
stmt = stmt.Set("load_avg", stats.Avg)
case "net_bw":
stmt = stmt.Set("net_bw_avg", stats.Avg)
case "file_bw":
stmt = stmt.Set("file_bw_avg", stats.Avg)
default:
log.Infof("MarkArchived() Metric '%v' unknown", metric)
}
}
if _, err := stmt.RunWith(r.stmtCache).Exec(); err != nil {
log.Warn("Error while marking job as archived")
return err
}
return nil
}
// Archiving worker thread
func (r *JobRepository) archivingWorker() {
for {
select {
case job, ok := <-r.archiveChannel:
if !ok {
break
}
// not using meta data, called to load JobMeta into Cache?
// will fail if job meta not in repository
if _, err := r.FetchMetadata(job); err != nil {
log.Errorf("archiving job (dbid: %d) failed: %s", job.ID, err.Error())
r.UpdateMonitoringStatus(job.ID, schema.MonitoringStatusArchivingFailed)
continue
}
// metricdata.ArchiveJob will fetch all the data from a MetricDataRepository and push into configured archive backend
// TODO: Maybe use context with cancel/timeout here
jobMeta, err := metricdata.ArchiveJob(job, context.Background())
if err != nil {
log.Errorf("archiving job (dbid: %d) failed: %s", job.ID, err.Error())
r.UpdateMonitoringStatus(job.ID, schema.MonitoringStatusArchivingFailed)
continue
}
// Update the jobs database entry one last time:
if err := r.MarkArchived(job.ID, schema.MonitoringStatusArchivingSuccessful, jobMeta.Statistics); err != nil {
log.Errorf("archiving job (dbid: %d) failed: %s", job.ID, err.Error())
continue
}
log.Printf("archiving job (dbid: %d) successful", job.ID)
r.archivePending.Done()
}
}
}
// Trigger async archiving
func (r *JobRepository) TriggerArchiving(job *schema.Job) {
r.archivePending.Add(1)
r.archiveChannel <- job
}
// Wait for background thread to finish pending archiving operations
func (r *JobRepository) WaitForArchiving() {
// close channel and wait for worker to process remaining jobs
r.archivePending.Wait()
}
var ErrNotFound = errors.New("no such jobname, project or user")
var ErrForbidden = errors.New("not authorized")
// FindJobnameOrUserOrProject returns a jobName or a username or a projectId if a jobName or user or project matches the search term.
// If query is found to be an integer (= conversion to INT datatype succeeds), skip back to parent call
// If nothing matches the search, `ErrNotFound` is returned.
func (r *JobRepository) FindJobnameOrUserOrProject(ctx context.Context, searchterm string) (metasnip string, username string, project string, err error) {
user := auth.GetUser(ctx)
if _, err := strconv.Atoi(searchterm); err == nil { // Return empty on successful conversion: parent method will redirect for integer jobId
return "", "", "", nil
} else { // has to have letters
if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
err := sq.Select("job.user").Distinct().From("job").
Where("job.user = ?", searchterm).
RunWith(r.stmtCache).QueryRow().Scan(&username)
if err != nil && err != sql.ErrNoRows {
return "", "", "", err
} else if err == nil {
return "", username, "", nil
}
if username == "" { // Try with Name2Username query
errtwo := sq.Select("user.username").Distinct().From("user").
Where("user.name LIKE ?", fmt.Sprint("%"+searchterm+"%")).
RunWith(r.stmtCache).QueryRow().Scan(&username)
if errtwo != nil && errtwo != sql.ErrNoRows {
return "", "", "", errtwo
} else if errtwo == nil {
return "", username, "", nil
}
}
}
if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
err := sq.Select("job.project").Distinct().From("job").
Where("job.project = ?", searchterm).
RunWith(r.stmtCache).QueryRow().Scan(&project)
if err != nil && err != sql.ErrNoRows {
return "", "", "", err
} else if err == nil {
return "", "", project, nil
}
}
// All Authorizations: If unlabeled query not username or projectId, try for jobname: Match Metadata, on hit, parent method redirects to jobName GQL query
err := sq.Select("job.cluster").Distinct().From("job").
Where("job.meta_data LIKE ?", "%"+searchterm+"%").
RunWith(r.stmtCache).QueryRow().Scan(&metasnip)
if err != nil && err != sql.ErrNoRows {
return "", "", "", err
} else if err == nil {
return metasnip[0:1], "", "", nil
}
return "", "", "", ErrNotFound
}
}
func (r *JobRepository) FindUser(ctx context.Context, searchterm string) (username string, err error) {
user := auth.GetUser(ctx)
if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
err := sq.Select("job.user").Distinct().From("job").
Where("job.user = ?", searchterm).
RunWith(r.stmtCache).QueryRow().Scan(&username)
if err != nil && err != sql.ErrNoRows {
return "", err
} else if err == nil {
return username, nil
}
return "", ErrNotFound
} else {
log.Infof("Non-Admin User %s : Requested Query Username -> %s: Forbidden", user.Name, searchterm)
return "", ErrForbidden
}
}
func (r *JobRepository) FindUserByName(ctx context.Context, searchterm string) (username string, err error) {
user := auth.GetUser(ctx)
if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
err := sq.Select("user.username").Distinct().From("user").
Where("user.name = ?", searchterm).
RunWith(r.stmtCache).QueryRow().Scan(&username)
if err != nil && err != sql.ErrNoRows {
return "", err
} else if err == nil {
return username, nil
}
return "", ErrNotFound
} else {
log.Infof("Non-Admin User %s : Requested Query Name -> %s: Forbidden", user.Name, searchterm)
return "", ErrForbidden
}
}
func (r *JobRepository) FindUsers(ctx context.Context, searchterm string) (usernames []string, err error) {
user := auth.GetUser(ctx)
emptyResult := make([]string, 0)
if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
rows, err := sq.Select("job.user").Distinct().From("job").
Where("job.user LIKE ?", fmt.Sprint("%", searchterm, "%")).
RunWith(r.stmtCache).Query()
if err != nil && err != sql.ErrNoRows {
return emptyResult, err
} else if err == nil {
for rows.Next() {
var name string
err := rows.Scan(&name)
if err != nil {
rows.Close()
log.Warnf("Error while scanning rows: %v", err)
return emptyResult, err
}
usernames = append(usernames, name)
}
return usernames, nil
}
return emptyResult, ErrNotFound
} else {
log.Infof("Non-Admin User %s : Requested Query Usernames -> %s: Forbidden", user.Name, searchterm)
return emptyResult, ErrForbidden
}
}
func (r *JobRepository) FindUsersByName(ctx context.Context, searchterm string) (usernames []string, err error) {
user := auth.GetUser(ctx)
emptyResult := make([]string, 0)
if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
rows, err := sq.Select("user.username").Distinct().From("user").
Where("user.name LIKE ?", fmt.Sprint("%", searchterm, "%")).
RunWith(r.stmtCache).Query()
if err != nil && err != sql.ErrNoRows {
return emptyResult, err
} else if err == nil {
for rows.Next() {
var username string
err := rows.Scan(&username)
if err != nil {
rows.Close()
log.Warnf("Error while scanning rows: %v", err)
return emptyResult, err
}
usernames = append(usernames, username)
}
return usernames, nil
}
return emptyResult, ErrNotFound
} else {
log.Infof("Non-Admin User %s : Requested Query name -> %s: Forbidden", user.Name, searchterm)
return emptyResult, ErrForbidden
}
}
func (r *JobRepository) FindNameByUser(ctx context.Context, searchterm string) (name string, err error) {
user := auth.GetUser(ctx)
if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
err := sq.Select("user.name").Distinct().From("user").
Where("user.username = ?", searchterm).
RunWith(r.stmtCache).QueryRow().Scan(&name)
if err != nil && err != sql.ErrNoRows {
return "", err
} else if err == nil {
return name, nil
}
return "", ErrNotFound
} else {
log.Infof("Non-Admin User %s : Requested Query Name -> %s: Forbidden", user.Name, searchterm)
return "", ErrForbidden
}
}
func (r *JobRepository) FindProject(ctx context.Context, searchterm string) (project string, err error) {
user := auth.GetUser(ctx)
if user == nil || user.HasRole(auth.RoleAdmin) || user.HasRole(auth.RoleSupport) {
err := sq.Select("job.project").Distinct().From("job").
Where("job.project = ?", searchterm).
RunWith(r.stmtCache).QueryRow().Scan(&project)
if err != nil && err != sql.ErrNoRows {
return "", err
} else if err == nil {
return project, nil
}
return "", ErrNotFound
} else {
log.Infof("Non-Admin User %s : Requested Query Project -> %s: Forbidden", user.Name, project)
return "", ErrForbidden
}
}
func (r *JobRepository) Partitions(cluster string) ([]string, error) {
var err error
start := time.Now()
partitions := r.cache.Get("partitions:"+cluster, func() (interface{}, time.Duration, int) {
parts := []string{}
if err = r.DB.Select(&parts, `SELECT DISTINCT job.partition FROM job WHERE job.cluster = ?;`, cluster); err != nil {
return nil, 0, 1000
}
return parts, 1 * time.Hour, 1
})
if err != nil {
return nil, err
}
log.Infof("Timer Partitions %s", time.Since(start))
return partitions.([]string), nil
}
// AllocatedNodes returns a map of all subclusters to a map of hostnames to the amount of jobs running on that host.
// Hosts with zero jobs running on them will not show up!
func (r *JobRepository) AllocatedNodes(cluster string) (map[string]map[string]int, error) {
start := time.Now()
subclusters := make(map[string]map[string]int)
rows, err := sq.Select("resources", "subcluster").From("job").
Where("job.job_state = 'running'").
Where("job.cluster = ?", cluster).
RunWith(r.stmtCache).Query()
if err != nil {
log.Error("Error while running query")
return nil, err
}
var raw []byte
defer rows.Close()
for rows.Next() {
raw = raw[0:0]
var resources []*schema.Resource
var subcluster string
if err := rows.Scan(&raw, &subcluster); err != nil {
log.Warn("Error while scanning rows")
return nil, err
}
if err := json.Unmarshal(raw, &resources); err != nil {
log.Warn("Error while unmarshaling raw resources json")
return nil, err
}
hosts, ok := subclusters[subcluster]
if !ok {
hosts = make(map[string]int)
subclusters[subcluster] = hosts
}
for _, resource := range resources {
hosts[resource.Hostname] += 1
}
}
log.Infof("Timer AllocatedNodes %s", time.Since(start))
return subclusters, nil
}
func (r *JobRepository) StopJobsExceedingWalltimeBy(seconds int) error {
start := time.Now()
res, err := sq.Update("job").
Set("monitoring_status", schema.MonitoringStatusArchivingFailed).
Set("duration", 0).
Set("job_state", schema.JobStateFailed).
Where("job.job_state = 'running'").
Where("job.walltime > 0").
Where(fmt.Sprintf("(%d - job.start_time) > (job.walltime + %d)", time.Now().Unix(), seconds)).
RunWith(r.DB).Exec()
if err != nil {
log.Warn("Error while stopping jobs exceeding walltime")
return err
}
rowsAffected, err := res.RowsAffected()
if err != nil {
log.Warn("Error while fetching affected rows after stopping due to exceeded walltime")
return err
}
if rowsAffected > 0 {
log.Infof("%d jobs have been marked as failed due to running too long", rowsAffected)
}
log.Infof("Timer StopJobsExceedingWalltimeBy %s", time.Since(start))
return nil
}
// TODO: Move to config
const ShortJobDuration int = 5 * 60
// GraphQL validation should make sure that no unkown values can be specified.
var groupBy2column = map[model.Aggregate]string{
model.AggregateUser: "job.user",
model.AggregateProject: "job.project",
model.AggregateCluster: "job.cluster",
}
// Helper function for the jobsStatistics GraphQL query placed here so that schema.resolvers.go is not too full.
func (r *JobRepository) JobsStatistics(ctx context.Context,
filter []*model.JobFilter,
groupBy *model.Aggregate) ([]*model.JobsStatistics, error) {
start := time.Now()
// In case `groupBy` is nil (not used), the model.JobsStatistics used is at the key '' (empty string)
stats := map[string]*model.JobsStatistics{}
var castType string
if r.driver == "sqlite3" {
castType = "int"
} else if r.driver == "mysql" {
castType = "unsigned"
}
// `socketsPerNode` and `coresPerSocket` can differ from cluster to cluster, so we need to explicitly loop over those.
for _, cluster := range archive.Clusters {
for _, subcluster := range cluster.SubClusters {
corehoursCol := fmt.Sprintf("CAST(ROUND(SUM(job.duration * job.num_nodes * %d * %d) / 3600) as %s)", subcluster.SocketsPerNode, subcluster.CoresPerSocket, castType)
var query sq.SelectBuilder
if groupBy == nil {
query = sq.Select(
"''",
"COUNT(job.id)",
fmt.Sprintf("CAST(ROUND(SUM(job.duration) / 3600) as %s)", castType),
corehoursCol,
).From("job")
} else {
col := groupBy2column[*groupBy]
query = sq.Select(
col,
"COUNT(job.id)",
fmt.Sprintf("CAST(ROUND(SUM(job.duration) / 3600) as %s)", castType),
corehoursCol,
).From("job").GroupBy(col)
}
query = query.
Where("job.cluster = ?", cluster.Name).
Where("job.subcluster = ?", subcluster.Name)
query = SecurityCheck(ctx, query)
for _, f := range filter {
query = BuildWhereClause(f, query)
}
rows, err := query.RunWith(r.DB).Query()
if err != nil {
log.Warn("Error while querying DB for job statistics")
return nil, err
}
for rows.Next() {
var id sql.NullString
var jobs, walltime, corehours sql.NullInt64
if err := rows.Scan(&id, &jobs, &walltime, &corehours); err != nil {
log.Warn("Error while scanning rows")
return nil, err
}
if id.Valid {
if s, ok := stats[id.String]; ok {
s.TotalJobs += int(jobs.Int64)
s.TotalWalltime += int(walltime.Int64)
s.TotalCoreHours += int(corehours.Int64)
} else {
stats[id.String] = &model.JobsStatistics{
ID: id.String,
TotalJobs: int(jobs.Int64),
TotalWalltime: int(walltime.Int64),
TotalCoreHours: int(corehours.Int64),
}
}
}
}
}
}
if groupBy == nil {
query := sq.Select("COUNT(job.id)").From("job").Where("job.duration < ?", ShortJobDuration)
query = SecurityCheck(ctx, query)
for _, f := range filter {
query = BuildWhereClause(f, query)
}
if err := query.RunWith(r.DB).QueryRow().Scan(&(stats[""].ShortJobs)); err != nil {
log.Warn("Error while scanning rows for short job stats")
return nil, err
}
} else {
col := groupBy2column[*groupBy]
query := sq.Select(col, "COUNT(job.id)").From("job").Where("job.duration < ?", ShortJobDuration)
query = SecurityCheck(ctx, query)
for _, f := range filter {
query = BuildWhereClause(f, query)
}
rows, err := query.RunWith(r.DB).Query()
if err != nil {
log.Warn("Error while querying jobs for short jobs")
return nil, err
}
for rows.Next() {
var id sql.NullString
var shortJobs sql.NullInt64
if err := rows.Scan(&id, &shortJobs); err != nil {
log.Warn("Error while scanning rows for short jobs")
return nil, err
}
if id.Valid {
stats[id.String].ShortJobs = int(shortJobs.Int64)
}
}
}
// Calculating the histogram data is expensive, so only do it if needed.
// An explicit resolver can not be used because we need to know the filters.
histogramsNeeded := false
fields := graphql.CollectFieldsCtx(ctx, nil)
for _, col := range fields {
if col.Name == "histDuration" || col.Name == "histNumNodes" {
histogramsNeeded = true
}
}
res := make([]*model.JobsStatistics, 0, len(stats))
for _, stat := range stats {
res = append(res, stat)
id, col := "", ""
if groupBy != nil {
id = stat.ID
col = groupBy2column[*groupBy]
}
if histogramsNeeded {
var err error
value := fmt.Sprintf(`CAST(ROUND((CASE WHEN job.job_state = "running" THEN %d - job.start_time ELSE job.duration END) / 3600) as %s) as value`, time.Now().Unix(), castType)
stat.HistDuration, err = r.jobsStatisticsHistogram(ctx, value, filter, id, col)
if err != nil {
log.Warn("Error while loading job statistics histogram: running jobs")
return nil, err
}
stat.HistNumNodes, err = r.jobsStatisticsHistogram(ctx, "job.num_nodes as value", filter, id, col)
if err != nil {
log.Warn("Error while loading job statistics histogram: num nodes")
return nil, err
}
}
}
log.Infof("Timer JobStatistics %s", time.Since(start))
return res, nil
}
// `value` must be the column grouped by, but renamed to "value". `id` and `col` can optionally be used
// to add a condition to the query of the kind "<col> = <id>".
func (r *JobRepository) jobsStatisticsHistogram(ctx context.Context,
value string, filters []*model.JobFilter, id, col string) ([]*model.HistoPoint, error) {
start := time.Now()
query := sq.Select(value, "COUNT(job.id) AS count").From("job")
query = SecurityCheck(ctx, query)
for _, f := range filters {
query = BuildWhereClause(f, query)
}
if len(id) != 0 && len(col) != 0 {
query = query.Where(col+" = ?", id)
}
rows, err := query.GroupBy("value").RunWith(r.DB).Query()
if err != nil {
log.Error("Error while running query")
return nil, err
}
points := make([]*model.HistoPoint, 0)
for rows.Next() {
point := model.HistoPoint{}
if err := rows.Scan(&point.Value, &point.Count); err != nil {
log.Warn("Error while scanning rows")
return nil, err
}
points = append(points, &point)
}
log.Infof("Timer jobsStatisticsHistogram %s", time.Since(start))
return points, nil
}