Deployment workload pending due to podgroup in Pending Phase

[wpeng102]

What happened:
Cluster has enough resource but deployment workload scheduled by volcano still pending due to podgroup in pending phase.

What you expected to happen:
Volcano schedule deployment workload well.

How to reproduce it (as minimally and precisely as possible):

1. Submit a deployoment workload which use volcano scheduler.
2. Update deployment resource request several times, each update will create a rs and volcano will create a podgroup

root@w00564621-res-33064-1r3xs:~/peng/yaml# kubectl get rs
NAME                             DESIRED   CURRENT   READY   AGE
deploy-with-volcano-545bc5465    0         0         0       114m
deploy-with-volcano-584fc556b5   3         3         3       115m
deploy-with-volcano-646b8c6b4b   1         1         0       112m
deploy-with-volcano-64b96f7df6   0         0         0       122m
deploy-with-volcano-678d5f7586   0         0         0       121m
deploy-with-volcano-6b5bb766b4   0         0         0       112m
deploy-with-volcano-6c9b444795   0         0         0       120m
deploy-with-volcano-7bd985746b   0         0         0       115m

root@w00564621-res-33064-1r3xs:~/peng/yaml# kubectl get pg
NAME                                            AGE
podgroup-07237d09-a605-4149-ae85-a32e666b1f21   121m
podgroup-1b6548ec-30bc-4d1a-8869-357a059331d9   116m
podgroup-3bd4da40-1b0f-4e6f-ac4a-97730e79fdf1   115m
podgroup-476434f7-791e-4228-bf2f-b0ebb664d0bb   122m
podgroup-845df9b1-f2bf-46ed-90db-1f874866b4ad   112m
podgroup-c6dbc539-5cda-4671-8d18-74cf82c8ae59   122m
podgroup-f0175b8a-b3f8-4739-b738-ff02ec39caba   113m

3. There will be many podgroup in Inqueue phase, in overcommit plugin it will compute inqueueResource for these Inqueue pg, even if it has no task.
   

   volcano/pkg/scheduler/plugins/overcommit/overcommit.go

   Lines 93 to 96 in f4d3d44

   	if job.PodGroup.Status.Phase == scheduling.PodGroupInqueue && job.PodGroup.Spec.MinResources != nil {
   	op.inqueueResource.Add(api.NewResource(*job.PodGroup.Spec.MinResources))
   	continue
   	}

4. Then submit new workload will pending because overcommit plugin thought all the resources used by the above Inqueue gp.

[wpeng102]

Volcano should create podgroup for deployoment instead of create podgroup for replicaset.

[stale]

Hello 👋 Looks like there was no activity on this issue for last 90 days.
Do you mind updating us on the status? Is this still reproducible or needed? If yes, just comment on this PR or push a commit. Thanks! 🤗
If there will be no activity for 60 days, this issue will be closed (we can always reopen an issue if we need!).

[stale]

Hello 👋 Looks like there was no activity on this issue for last 90 days.
Do you mind updating us on the status? Is this still reproducible or needed? If yes, just comment on this PR or push a commit. Thanks! 🤗
If there will be no activity for 60 days, this issue will be closed (we can always reopen an issue if we need!).

[stale]

Closing for now as there was no activity for last 60 days after marked as stale, let us know if you need this to be reopened! 🤗