mirror of
https://github.com/ClusterCockpit/cc-backend
synced 2025-07-19 03:11:40 +02:00
Refactor directory structure
This commit is contained in:
Jan Eitzinger
411
internal/repository/job.go
Normal file
411
internal/repository/job.go
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@@ -0,0 +1,411 @@
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package repository
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import (
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"context"
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"database/sql"
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"encoding/json"
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"errors"
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"fmt"
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"strconv"
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"sync"
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"time"
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"github.com/ClusterCockpit/cc-backend/internal/auth"
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"github.com/ClusterCockpit/cc-backend/internal/graph/model"
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"github.com/ClusterCockpit/cc-backend/pkg/log"
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"github.com/ClusterCockpit/cc-backend/pkg/schema"
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sq "github.com/Masterminds/squirrel"
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"github.com/iamlouk/lrucache"
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"github.com/jmoiron/sqlx"
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)
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var (
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jobRepoOnce sync.Once
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jobRepoInstance *JobRepository
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)
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type JobRepository struct {
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DB *sqlx.DB
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stmtCache *sq.StmtCache
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cache *lrucache.Cache
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}
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func GetRepository() *JobRepository {
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jobRepoOnce.Do(func() {
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db := GetConnection()
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jobRepoInstance = &JobRepository{
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DB: db.DB,
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stmtCache: sq.NewStmtCache(db.DB),
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cache: lrucache.New(1024 * 1024),
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}
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})
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return jobRepoInstance
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}
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var jobColumns []string = []string{
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"job.id", "job.job_id", "job.user", "job.project", "job.cluster", "job.subcluster", "job.start_time", "job.partition", "job.array_job_id",
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"job.num_nodes", "job.num_hwthreads", "job.num_acc", "job.exclusive", "job.monitoring_status", "job.smt", "job.job_state",
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"job.duration", "job.walltime", "job.resources", // "job.meta_data",
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}
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func scanJob(row interface{ Scan(...interface{}) error }) (*schema.Job, error) {
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job := &schema.Job{}
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if err := row.Scan(
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&job.ID, &job.JobID, &job.User, &job.Project, &job.Cluster, &job.SubCluster, &job.StartTimeUnix, &job.Partition, &job.ArrayJobId,
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&job.NumNodes, &job.NumHWThreads, &job.NumAcc, &job.Exclusive, &job.MonitoringStatus, &job.SMT, &job.State,
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&job.Duration, &job.Walltime, &job.RawResources /*&job.MetaData*/); err != nil {
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return nil, err
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}
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if err := json.Unmarshal(job.RawResources, &job.Resources); err != nil {
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return nil, err
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}
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job.StartTime = time.Unix(job.StartTimeUnix, 0)
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if job.Duration == 0 && job.State == schema.JobStateRunning {
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job.Duration = int32(time.Since(job.StartTime).Seconds())
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}
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job.RawResources = nil
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return job, nil
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}
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func (r *JobRepository) FetchMetadata(job *schema.Job) (map[string]string, error) {
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cachekey := fmt.Sprintf("metadata:%d", job.ID)
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if cached := r.cache.Get(cachekey, nil); cached != nil {
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job.MetaData = cached.(map[string]string)
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return job.MetaData, nil
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}
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if err := sq.Select("job.meta_data").From("job").Where("job.id = ?", job.ID).
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RunWith(r.stmtCache).QueryRow().Scan(&job.RawMetaData); err != nil {
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return nil, err
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}
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if len(job.RawMetaData) == 0 {
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return nil, nil
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}
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if err := json.Unmarshal(job.RawMetaData, &job.MetaData); err != nil {
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return nil, err
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}
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r.cache.Put(cachekey, job.MetaData, len(job.RawMetaData), 24*time.Hour)
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return job.MetaData, nil
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}
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func (r *JobRepository) UpdateMetadata(job *schema.Job, key, val string) (err error) {
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cachekey := fmt.Sprintf("metadata:%d", job.ID)
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r.cache.Del(cachekey)
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if job.MetaData == nil {
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if _, err = r.FetchMetadata(job); err != nil {
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return err
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}
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}
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if job.MetaData != nil {
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cpy := make(map[string]string, len(job.MetaData)+1)
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for k, v := range job.MetaData {
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cpy[k] = v
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}
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cpy[key] = val
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job.MetaData = cpy
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} else {
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job.MetaData = map[string]string{key: val}
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}
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if job.RawMetaData, err = json.Marshal(job.MetaData); err != nil {
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return err
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}
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if _, err = sq.Update("job").Set("meta_data", job.RawMetaData).Where("job.id = ?", job.ID).RunWith(r.stmtCache).Exec(); err != nil {
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return err
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}
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r.cache.Put(cachekey, job.MetaData, len(job.RawMetaData), 24*time.Hour)
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return nil
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}
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// Find executes a SQL query to find a specific batch job.
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// The job is queried using the batch job id, the cluster name,
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// and the start time of the job in UNIX epoch time seconds.
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// It returns a pointer to a schema.Job data structure and an error variable.
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// To check if no job was found test err == sql.ErrNoRows
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func (r *JobRepository) Find(
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jobId *int64,
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cluster *string,
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startTime *int64) (*schema.Job, error) {
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q := sq.Select(jobColumns...).From("job").
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Where("job.job_id = ?", *jobId)
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if cluster != nil {
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q = q.Where("job.cluster = ?", *cluster)
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}
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if startTime != nil {
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q = q.Where("job.start_time = ?", *startTime)
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}
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return scanJob(q.RunWith(r.stmtCache).QueryRow())
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}
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// FindById executes a SQL query to find a specific batch job.
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// The job is queried using the database id.
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// It returns a pointer to a schema.Job data structure and an error variable.
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// To check if no job was found test err == sql.ErrNoRows
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func (r *JobRepository) FindById(
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jobId int64) (*schema.Job, error) {
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q := sq.Select(jobColumns...).
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From("job").Where("job.id = ?", jobId)
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return scanJob(q.RunWith(r.stmtCache).QueryRow())
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}
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// Start inserts a new job in the table, returning the unique job ID.
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// Statistics are not transfered!
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func (r *JobRepository) Start(job *schema.JobMeta) (id int64, err error) {
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job.RawResources, err = json.Marshal(job.Resources)
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if err != nil {
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return -1, fmt.Errorf("encoding resources field failed: %w", err)
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}
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job.RawMetaData, err = json.Marshal(job.MetaData)
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if err != nil {
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return -1, fmt.Errorf("encoding metaData field failed: %w", err)
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}
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res, err := r.DB.NamedExec(`INSERT INTO job (
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job_id, user, project, cluster, subcluster, `+"`partition`"+`, array_job_id, num_nodes, num_hwthreads, num_acc,
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exclusive, monitoring_status, smt, job_state, start_time, duration, walltime, resources, meta_data
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) VALUES (
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:job_id, :user, :project, :cluster, :subcluster, :partition, :array_job_id, :num_nodes, :num_hwthreads, :num_acc,
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:exclusive, :monitoring_status, :smt, :job_state, :start_time, :duration, :walltime, :resources, :meta_data
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);`, job)
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if err != nil {
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return -1, err
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}
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return res.LastInsertId()
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}
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// Stop updates the job with the database id jobId using the provided arguments.
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func (r *JobRepository) Stop(
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jobId int64,
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duration int32,
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state schema.JobState,
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monitoringStatus int32) (err error) {
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stmt := sq.Update("job").
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Set("job_state", state).
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Set("duration", duration).
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Set("monitoring_status", monitoringStatus).
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Where("job.id = ?", jobId)
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_, err = stmt.RunWith(r.stmtCache).Exec()
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return
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}
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// 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;
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func (r *JobRepository) CountGroupedJobs(ctx context.Context, aggreg model.Aggregate, filters []*model.JobFilter, weight *model.Weights, limit *int) (map[string]int, error) {
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if !aggreg.IsValid() {
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return nil, errors.New("invalid aggregate")
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}
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runner := (sq.BaseRunner)(r.stmtCache)
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count := "count(*) as count"
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if weight != nil {
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switch *weight {
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case model.WeightsNodeCount:
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count = "sum(job.num_nodes) as count"
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case model.WeightsNodeHours:
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now := time.Now().Unix()
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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)
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runner = r.DB
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}
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}
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q := sq.Select("job."+string(aggreg), count).From("job").GroupBy("job." + string(aggreg)).OrderBy("count DESC")
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q = SecurityCheck(ctx, q)
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for _, f := range filters {
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q = BuildWhereClause(f, q)
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}
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if limit != nil {
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q = q.Limit(uint64(*limit))
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}
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counts := map[string]int{}
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rows, err := q.RunWith(runner).Query()
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if err != nil {
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return nil, err
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}
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for rows.Next() {
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var group string
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var count int
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if err := rows.Scan(&group, &count); err != nil {
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return nil, err
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}
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counts[group] = count
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}
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return counts, nil
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}
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func (r *JobRepository) UpdateMonitoringStatus(job int64, monitoringStatus int32) (err error) {
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stmt := sq.Update("job").
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Set("monitoring_status", monitoringStatus).
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Where("job.id = ?", job)
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_, err = stmt.RunWith(r.stmtCache).Exec()
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return
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}
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// Stop updates the job with the database id jobId using the provided arguments.
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func (r *JobRepository) Archive(
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jobId int64,
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monitoringStatus int32,
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metricStats map[string]schema.JobStatistics) error {
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stmt := sq.Update("job").
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Set("monitoring_status", monitoringStatus).
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Where("job.id = ?", jobId)
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for metric, stats := range metricStats {
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switch metric {
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case "flops_any":
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stmt = stmt.Set("flops_any_avg", stats.Avg)
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case "mem_used":
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stmt = stmt.Set("mem_used_max", stats.Max)
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case "mem_bw":
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stmt = stmt.Set("mem_bw_avg", stats.Avg)
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case "load":
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stmt = stmt.Set("load_avg", stats.Avg)
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case "net_bw":
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stmt = stmt.Set("net_bw_avg", stats.Avg)
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case "file_bw":
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stmt = stmt.Set("file_bw_avg", stats.Avg)
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}
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}
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if _, err := stmt.RunWith(r.stmtCache).Exec(); err != nil {
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return err
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}
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return nil
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}
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var ErrNotFound = errors.New("no such job or user")
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// FindJobOrUser returns a job database ID or a username if a job or user machtes the search term.
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// As 0 is a valid job id, check if username is "" instead in order to check what machted.
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// If nothing matches the search, `ErrNotFound` is returned.
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func (r *JobRepository) FindJobOrUser(ctx context.Context, searchterm string) (job int64, username string, err error) {
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user := auth.GetUser(ctx)
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if id, err := strconv.Atoi(searchterm); err == nil {
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qb := sq.Select("job.id").From("job").Where("job.job_id = ?", id)
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if user != nil && !user.HasRole(auth.RoleAdmin) {
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qb = qb.Where("job.user = ?", user.Username)
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}
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err := qb.RunWith(r.stmtCache).QueryRow().Scan(&job)
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if err != nil && err != sql.ErrNoRows {
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return 0, "", err
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} else if err == nil {
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return job, "", nil
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}
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}
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if user == nil || user.HasRole(auth.RoleAdmin) {
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err := sq.Select("job.user").Distinct().From("job").
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Where("job.user = ?", searchterm).
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RunWith(r.stmtCache).QueryRow().Scan(&username)
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if err != nil && err != sql.ErrNoRows {
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return 0, "", err
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} else if err == nil {
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return 0, username, nil
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}
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}
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return 0, "", ErrNotFound
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}
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func (r *JobRepository) Partitions(cluster string) ([]string, error) {
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var err error
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partitions := r.cache.Get("partitions:"+cluster, func() (interface{}, time.Duration, int) {
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parts := []string{}
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if err = r.DB.Select(&parts, `SELECT DISTINCT job.partition FROM job WHERE job.cluster = ?;`, cluster); err != nil {
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return nil, 0, 1000
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}
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return parts, 1 * time.Hour, 1
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})
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if err != nil {
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return nil, err
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}
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return partitions.([]string), nil
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}
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// AllocatedNodes returns a map of all subclusters to a map of hostnames to the amount of jobs running on that host.
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// Hosts with zero jobs running on them will not show up!
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func (r *JobRepository) AllocatedNodes(cluster string) (map[string]map[string]int, error) {
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subclusters := make(map[string]map[string]int)
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rows, err := sq.Select("resources", "subcluster").From("job").
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Where("job.job_state = 'running'").
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Where("job.cluster = ?", cluster).
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RunWith(r.stmtCache).Query()
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if err != nil {
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return nil, err
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}
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var raw []byte
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defer rows.Close()
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for rows.Next() {
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raw = raw[0:0]
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var resources []*schema.Resource
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var subcluster string
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if err := rows.Scan(&raw, &subcluster); err != nil {
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return nil, err
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}
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if err := json.Unmarshal(raw, &resources); err != nil {
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return nil, err
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}
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hosts, ok := subclusters[subcluster]
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if !ok {
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hosts = make(map[string]int)
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subclusters[subcluster] = hosts
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}
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for _, resource := range resources {
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hosts[resource.Hostname] += 1
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}
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}
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return subclusters, nil
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}
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func (r *JobRepository) StopJobsExceedingWalltimeBy(seconds int) error {
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res, err := sq.Update("job").
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Set("monitoring_status", schema.MonitoringStatusArchivingFailed).
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Set("duration", 0).
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Set("job_state", schema.JobStateFailed).
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Where("job.job_state = 'running'").
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Where("job.walltime > 0").
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Where(fmt.Sprintf("(%d - job.start_time) > (job.walltime + %d)", time.Now().Unix(), seconds)).
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RunWith(r.DB).Exec()
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if err != nil {
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return err
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}
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rowsAffected, err := res.RowsAffected()
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if err != nil {
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return err
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}
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if rowsAffected > 0 {
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log.Warnf("%d jobs have been marked as failed due to running too long", rowsAffected)
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}
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return nil
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}
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Block a user