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runservice scheduler: cancel unscheduled root tasks when run has result 

When run has a result set, root tasks not yet scheduled must be cancelled.
This commit is contained in:
Simone Gotti 2019-04-17 18:00:34 +02:00
parent 9f89a923c0
commit 1ac139434e
2 changed files with 101 additions and 17 deletions
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50
internal/services/runservice/scheduler/scheduler.go
View File

@ -97,14 +97,47 @@ func (s *Scheduler) runHasActiveExecutorTasks(ctx context.Context, runID string)
return len(activeTasks) > 0, nil
}
func advanceRunTasks(ctx context.Context, curRun *types.Run, rc *types.RunConfig) (*types.Run, error) {
func advanceRunTasks(ctx context.Context, curRun *types.Run, rc *types.RunConfig, activeExecutorTasks []*types.ExecutorTask) (*types.Run, error) {
log.Debugf("run: %s", util.Dump(curRun))
log.Debugf("rc: %s", util.Dump(rc))
// take a deepcopy of r so we do logic only on fixed status and not affeccted by current changes (due to random map iteration)
newRun := curRun.DeepCopy()
// get tasks that can be executed
// handle root tasks
for _, rt := range newRun.Tasks {
if rt.Skip {
continue
}
if rt.Status != types.RunTaskStatusNotStarted {
continue
}
rct := rc.Tasks[rt.ID]
parents := runconfig.GetParents(rc.Tasks, rct)
if len(parents) > 0 {
continue
}
// cancel task if the run has a result set and is not yet scheduled
if curRun.Result.IsSet() {
isScheduled := false
for _, et := range activeExecutorTasks {
if rt.ID == et.ID {
isScheduled = true
}
}
if isScheduled {
continue
}
if rt.Status == types.RunTaskStatusNotStarted {
rt.Status = types.RunTaskStatusCancelled
}
}
}
// handle all tasks
for _, rt := range newRun.Tasks {
if rt.Skip {
continue
@ -424,12 +457,12 @@ func (s *Scheduler) scheduleRun(ctx context.Context, r *types.Run, rc *types.Run
prevPhase := r.Phase
prevResult := r.Result
hasActiveTasks, err := s.runHasActiveExecutorTasks(ctx, r.ID)
activeExecutorTasks, err := s.runActiveExecutorTasks(ctx, r.ID)
if err != nil {
return err
}
if err := advanceRun(ctx, r, rc, hasActiveTasks); err != nil {
if err := advanceRun(ctx, r, rc, activeExecutorTasks); err != nil {
return err
}
@ -450,10 +483,6 @@ func (s *Scheduler) scheduleRun(ctx context.Context, r *types.Run, rc *types.Run
// if the run is set to stop, stop all tasks
if r.Stop {
activeExecutorTasks, err := s.runActiveExecutorTasks(ctx, r.ID)
if err != nil {
return err
}
for _, et := range activeExecutorTasks {
et.Stop = true
if _, err := store.AtomicPutExecutorTask(ctx, s.e, et); err != nil {
@ -467,7 +496,7 @@ func (s *Scheduler) scheduleRun(ctx context.Context, r *types.Run, rc *types.Run
// advance tasks
if r.Phase == types.RunPhaseRunning {
r, err := advanceRunTasks(ctx, r, rc)
r, err := advanceRunTasks(ctx, r, rc, activeExecutorTasks)
if err != nil {
return err
}
@ -489,8 +518,9 @@ func (s *Scheduler) scheduleRun(ctx context.Context, r *types.Run, rc *types.Run
// advanceRun updates the run result and phase. It must be the unique function that
// should update them.
func advanceRun(ctx context.Context, r *types.Run, rc *types.RunConfig, hasActiveTasks bool) error {
func advanceRun(ctx context.Context, r *types.Run, rc *types.RunConfig, activeExecutorTasks []*types.ExecutorTask) error {
log.Debugf("run: %s", util.Dump(r))
hasActiveTasks := len(activeExecutorTasks) > 0
// fail run if a task is failed
if !r.Result.IsSet() && r.Phase == types.RunPhaseRunning {

58
internal/services/runservice/scheduler/scheduler_test.go
View File

@ -89,10 +89,14 @@ func TestAdvanceRunTasks(t *testing.T) {
},
}
// initial run that matched the runconfig, all tasks are not started or skipped
// initial run that matched the runconfig:
// * the run is in phase running with result unknown
// * all tasks are not started or skipped
// (if the runconfig task as Skip == true). This must match the status
// generated by command.genRun()
run := &types.Run{
Phase: types.RunPhaseRunning,
Result: types.RunResultUnknown,
Tasks: map[string]*types.RunTask{
"task01": &types.RunTask{
ID: "task01",
@ -121,6 +125,7 @@ func TestAdvanceRunTasks(t *testing.T) {
name string
rc *types.RunConfig
r *types.Run
activeExecutorTasks []*types.ExecutorTask
out *types.Run
err error
}{
@ -301,12 +306,61 @@ func TestAdvanceRunTasks(t *testing.T) {
return run
}(),
},
{
name: "cancel all root not started tasks when run has a result set",
rc: func() *types.RunConfig {
rc := rc.DeepCopy()
return rc
}(),
r: func() *types.Run {
run := run.DeepCopy()
run.Result = types.RunResultSuccess
run.Tasks["task04"].Status = types.RunTaskStatusSuccess
return run
}(),
out: func() *types.Run {
run := run.DeepCopy()
run.Result = types.RunResultSuccess
run.Tasks["task01"].Status = types.RunTaskStatusCancelled
run.Tasks["task02"].Status = types.RunTaskStatusNotStarted
run.Tasks["task03"].Status = types.RunTaskStatusCancelled
run.Tasks["task04"].Status = types.RunTaskStatusSuccess
run.Tasks["task05"].Status = types.RunTaskStatusNotStarted
return run
}(),
},
{
name: "cancel all root not started tasks when run has a result set (task01 is already scheduled)",
rc: func() *types.RunConfig {
rc := rc.DeepCopy()
return rc
}(),
r: func() *types.Run {
run := run.DeepCopy()
run.Result = types.RunResultSuccess
run.Tasks["task04"].Status = types.RunTaskStatusSuccess
return run
}(),
activeExecutorTasks: []*types.ExecutorTask{
&types.ExecutorTask{ID: "task01"},
},
out: func() *types.Run {
run := run.DeepCopy()
run.Result = types.RunResultSuccess
run.Tasks["task01"].Status = types.RunTaskStatusNotStarted
run.Tasks["task02"].Status = types.RunTaskStatusNotStarted
run.Tasks["task03"].Status = types.RunTaskStatusCancelled
run.Tasks["task04"].Status = types.RunTaskStatusSuccess
run.Tasks["task05"].Status = types.RunTaskStatusNotStarted
return run
}(),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ctx := context.Background()
r, err := advanceRunTasks(ctx, tt.r, tt.rc)
r, err := advanceRunTasks(ctx, tt.r, tt.rc, tt.activeExecutorTasks)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}