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job_run_state_store.go
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job_run_state_store.go
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package job
import (
"sync"
"time"
log "github.com/sirupsen/logrus"
v1 "k8s.io/api/core/v1"
"k8s.io/client-go/tools/cache"
"github.com/armadaproject/armada/internal/executor/context"
"github.com/armadaproject/armada/internal/executor/util"
)
type RunStateStore interface {
ReportRunLeased(runMeta *RunMeta, job *SubmitJob)
ReportRunInvalid(runMeta *RunMeta)
ReportSuccessfulSubmission(runId string)
ReportFailedSubmission(runId string)
RequestRunCancellation(runId string)
RequestRunPreemption(runId string)
Delete(runId string)
Get(runId string) *RunState
GetAll() []*RunState
GetAllWithFilter(fn func(state *RunState) bool) []*RunState
GetByKubernetesId(kubernetesId string) *RunState
}
type JobRunStateStore struct {
// RunId -> RunState
jobRunState map[string]*RunState
lock sync.Mutex
clusterContext context.ClusterContext
}
func NewJobRunStateStore(clusterContext context.ClusterContext) *JobRunStateStore {
stateStore := &JobRunStateStore{
jobRunState: map[string]*RunState{},
lock: sync.Mutex{},
clusterContext: clusterContext,
}
clusterContext.AddPodEventHandler(cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
pod, ok := obj.(*v1.Pod)
if !ok {
log.Errorf("Failed to process pod event due to it being an unexpected type. Failed to process %+v", obj)
return
}
if util.IsLegacyManagedPod(pod) {
return
}
stateStore.reportRunActive(pod)
},
})
// On start up, make sure our state matches current k8s state
err := stateStore.reconcileStateWithKubernetes()
if err != nil {
panic(err)
}
return stateStore
}
// NewJobRunStateStoreWithInitialState This constructor is only intended for tests - as it does not reconcile with kubernetes state
func NewJobRunStateStoreWithInitialState(initialJobRuns []*RunState) *JobRunStateStore {
stateStore := &JobRunStateStore{
jobRunState: map[string]*RunState{},
lock: sync.Mutex{},
}
for _, jobRun := range initialJobRuns {
stateStore.jobRunState[jobRun.Meta.RunId] = jobRun
}
return stateStore
}
func (stateStore *JobRunStateStore) reconcileStateWithKubernetes() error {
pods, err := stateStore.clusterContext.GetAllPods()
if err != nil {
return err
}
pods = util.FilterPods(pods, func(pod *v1.Pod) bool {
return !util.IsLegacyManagedPod(pod)
})
for _, pod := range pods {
stateStore.reportRunActive(pod)
}
return nil
}
func (stateStore *JobRunStateStore) reportRunActive(pod *v1.Pod) {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
if !util.IsManagedPod(pod) {
return
}
runMeta, err := ExtractJobRunMeta(pod)
if err != nil {
log.Errorf("Failed to record pod %s as active because %s", pod.Name, err)
return
}
currentState, present := stateStore.jobRunState[runMeta.RunId]
if !present {
currentState = &RunState{
Meta: runMeta,
}
stateStore.jobRunState[runMeta.RunId] = currentState
}
currentState.Phase = Active
currentState.KubernetesId = string(pod.UID)
currentState.Job = nil // Now that the job is active, remove the object to save memory
currentState.LastPhaseTransitionTime = time.Now()
}
func (stateStore *JobRunStateStore) ReportRunLeased(runMeta *RunMeta, job *SubmitJob) {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
_, present := stateStore.jobRunState[runMeta.RunId]
if !present {
state := &RunState{
Meta: runMeta,
Job: job,
Phase: Leased,
LastPhaseTransitionTime: time.Now(),
}
stateStore.jobRunState[runMeta.RunId] = state
} else {
log.Warnf("run unexpectedly reported as leased (runId=%s, jobId=%s), state already exists", runMeta.RunId, runMeta.JobId)
}
}
func (stateStore *JobRunStateStore) ReportRunInvalid(runMeta *RunMeta) {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
_, present := stateStore.jobRunState[runMeta.RunId]
if !present {
state := &RunState{
Meta: runMeta,
Phase: Invalid,
LastPhaseTransitionTime: time.Now(),
}
stateStore.jobRunState[runMeta.RunId] = state
} else {
log.Warnf("run unexpectedly reported as invalid (runId=%s, jobId=%s), state already exists", runMeta.RunId, runMeta.JobId)
}
}
func (stateStore *JobRunStateStore) ReportSuccessfulSubmission(runId string) {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
currentState, present := stateStore.jobRunState[runId]
if !present {
log.Warnf("run %s unexpectedly reported as successful submission, no run with that id exists", runId)
return
}
currentState.Phase = SuccessfulSubmission
currentState.LastPhaseTransitionTime = time.Now()
}
func (stateStore *JobRunStateStore) ReportFailedSubmission(runId string) {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
currentState, present := stateStore.jobRunState[runId]
if !present {
log.Warnf("run %s unexpectedly reported as failed submission, no run with that id exists", runId)
return
}
currentState.Phase = FailedSubmission
currentState.LastPhaseTransitionTime = time.Now()
}
func (stateStore *JobRunStateStore) RequestRunCancellation(runId string) {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
if currentState, present := stateStore.jobRunState[runId]; present {
currentState.CancelRequested = true
}
}
func (stateStore *JobRunStateStore) RequestRunPreemption(runId string) {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
if currentState, present := stateStore.jobRunState[runId]; present {
currentState.PreemptionRequested = true
}
}
func (stateStore *JobRunStateStore) Delete(runId string) {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
delete(stateStore.jobRunState, runId)
}
func (stateStore *JobRunStateStore) Get(runId string) *RunState {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
run, exists := stateStore.jobRunState[runId]
if !exists {
return nil
}
return run.DeepCopy()
}
func (stateStore *JobRunStateStore) GetAll() []*RunState {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
result := make([]*RunState, 0, len(stateStore.jobRunState))
for _, jobRun := range stateStore.jobRunState {
result = append(result, jobRun.DeepCopy())
}
return result
}
func (stateStore *JobRunStateStore) GetByKubernetesId(kubernetesId string) *RunState {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
for _, run := range stateStore.jobRunState {
if run.KubernetesId == kubernetesId {
return run.DeepCopy()
}
}
return nil
}
func (stateStore *JobRunStateStore) GetAllWithFilter(fn func(state *RunState) bool) []*RunState {
stateStore.lock.Lock()
defer stateStore.lock.Unlock()
result := make([]*RunState, 0, len(stateStore.jobRunState))
for _, jobRun := range stateStore.jobRunState {
if fn(jobRun) {
result = append(result, jobRun.DeepCopy())
}
}
return result
}