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Posted to dev@yunikorn.apache.org by Prabhu Joseph <pr...@gmail.com> on 2020/05/26 11:32:59 UTC
Issues related to applications
Hi,
Have observed below issues related to applications in Yunikorn, want to
check if these are expected behaviors or bugs
1. When there is no application, Yunikorn WebService /ws/v1/apps shows null
[image: Screen Shot 2020-05-25 at 11.24.06 PM.png]
2. After Deleting Kubernetes deployment, Yunikorn WebService and UI shows
the application as still running with zero containers. How to permanently
delete the entry from Yunikorn applications,
[root@kcloud deployments]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE
IP NODE NOMINATED NODE READINESS
GATES
nginx-778b8f576d-g9tnc 1/1 Running 0 51s
1.2.3.4 kcloud-1.openstacklocal <none> <none>
yunikorn-scheduler-548645c864-4q2sj 2/2 Running 0 17h
1.2.3.4 kcloud-1.openstacklocal <none> <none>
[root@kcloud deployments]# kubectl delete -f examples/nginx/nginx.yaml
deployment.apps "nginx" deleted
[root@kcloud deployments]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE
IP NODE NOMINATED NODE READINESS
GATES
yunikorn-scheduler-548645c864-4q2sj 2/2 Running 0 17h
1.2.3.4 kcloud-1.openstacklocal <none> <none>
[image: Screen Shot 2020-05-26 at 5.01.21 PM.png]
Thanks,
Prabhu Joseph
Re: Issues related to applications
Posted by Prabhu Joseph <pr...@gmail.com>.
Thanks Weiwei.
On Wed, May 27, 2020 at 1:09 AM Weiwei Yang <ww...@apache.org> wrote:
> Hi Prabhu
>
> Somehow the screenshot doesn't show up there. But I think I get your
> question.
> Unfortunately, that's a known limitation at present. Basically, we can only
> obtain the end-2-end app state via
>
> 1. app CRD (https://issues.apache.org/jira/browse/YUNIKORN-170)
> 2. the operator framework (
>
> https://github.com/apache/incubator-yunikorn-core/blob/master/docs/design/pluggable-app-management.md
> )
>
> #1 is a TODO, #2 is there and currently only available for
> spark-k8s-operator. Not work for other apps yet.
>
> Thanks
>
>
> On Tue, May 26, 2020 at 4:33 AM Prabhu Joseph <pr...@gmail.com>
> wrote:
>
> > Hi,
> >
> > Have observed below issues related to applications in Yunikorn, want to
> > check if these are expected behaviors or bugs
> >
> > 1. When there is no application, Yunikorn WebService /ws/v1/apps shows
> null
> >
> > [image: Screen Shot 2020-05-25 at 11.24.06 PM.png]
> >
> > 2. After Deleting Kubernetes deployment, Yunikorn WebService and UI shows
> > the application as still running with zero containers. How to permanently
> > delete the entry from Yunikorn applications,
> >
> > [root@kcloud deployments]# kubectl get pods -o wide
> >
> > NAME READY STATUS RESTARTS
> > AGE IP NODE NOMINATED NODE
> READINESS
> > GATES
> >
> > nginx-778b8f576d-g9tnc 1/1 Running 0
> > 51s 1.2.3.4 kcloud-1.openstacklocal <none> <none>
> >
> > yunikorn-scheduler-548645c864-4q2sj 2/2 Running 0
> > 17h 1.2.3.4 kcloud-1.openstacklocal <none> <none>
> >
> >
> > [root@kcloud deployments]# kubectl delete -f examples/nginx/nginx.yaml
> >
> > deployment.apps "nginx" deleted
> >
> >
> > [root@kcloud deployments]# kubectl get pods -o wide
> >
> > NAME READY STATUS RESTARTS
> > AGE IP NODE NOMINATED NODE
> READINESS
> > GATES
> >
> > yunikorn-scheduler-548645c864-4q2sj 2/2 Running 0
> > 17h 1.2.3.4 kcloud-1.openstacklocal <none> <none>
> >
> >
> >
> > [image: Screen Shot 2020-05-26 at 5.01.21 PM.png]
> >
> >
> >
> > Thanks,
> > Prabhu Joseph
> >
>
Re: Issues related to applications
Posted by Weiwei Yang <ww...@apache.org>.
Hi Prabhu
Somehow the screenshot doesn't show up there. But I think I get your
question.
Unfortunately, that's a known limitation at present. Basically, we can only
obtain the end-2-end app state via
1. app CRD (https://issues.apache.org/jira/browse/YUNIKORN-170)
2. the operator framework (
https://github.com/apache/incubator-yunikorn-core/blob/master/docs/design/pluggable-app-management.md
)
#1 is a TODO, #2 is there and currently only available for
spark-k8s-operator. Not work for other apps yet.
Thanks
On Tue, May 26, 2020 at 4:33 AM Prabhu Joseph <pr...@gmail.com>
wrote:
> Hi,
>
> Have observed below issues related to applications in Yunikorn, want to
> check if these are expected behaviors or bugs
>
> 1. When there is no application, Yunikorn WebService /ws/v1/apps shows null
>
> [image: Screen Shot 2020-05-25 at 11.24.06 PM.png]
>
> 2. After Deleting Kubernetes deployment, Yunikorn WebService and UI shows
> the application as still running with zero containers. How to permanently
> delete the entry from Yunikorn applications,
>
> [root@kcloud deployments]# kubectl get pods -o wide
>
> NAME READY STATUS RESTARTS
> AGE IP NODE NOMINATED NODE READINESS
> GATES
>
> nginx-778b8f576d-g9tnc 1/1 Running 0
> 51s 1.2.3.4 kcloud-1.openstacklocal <none> <none>
>
> yunikorn-scheduler-548645c864-4q2sj 2/2 Running 0
> 17h 1.2.3.4 kcloud-1.openstacklocal <none> <none>
>
>
> [root@kcloud deployments]# kubectl delete -f examples/nginx/nginx.yaml
>
> deployment.apps "nginx" deleted
>
>
> [root@kcloud deployments]# kubectl get pods -o wide
>
> NAME READY STATUS RESTARTS
> AGE IP NODE NOMINATED NODE READINESS
> GATES
>
> yunikorn-scheduler-548645c864-4q2sj 2/2 Running 0
> 17h 1.2.3.4 kcloud-1.openstacklocal <none> <none>
>
>
>
> [image: Screen Shot 2020-05-26 at 5.01.21 PM.png]
>
>
>
> Thanks,
> Prabhu Joseph
>