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https://issues.apache.org/jira/browse/YUNIKORN-2665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17853586#comment-17853586
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Manikandan R commented on YUNIKORN-2665:
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Backported to branch 1.5
> Gang app originator pod changes after restart
> ---------------------------------------------
>
> Key: YUNIKORN-2665
> URL: https://issues.apache.org/jira/browse/YUNIKORN-2665
> Project: Apache YuniKorn
> Issue Type: Bug
> Components: shim - kubernetes
> Affects Versions: 1.3.0, 1.4.0, 1.5.0, 1.5.1
> Reporter: Manikandan R
> Assignee: Manikandan R
> Priority: Critical
> Labels: pull-request-available
>
> Gang app choose the first pod (who created the app) as originator pod which
> becomes the real driver pod later. While processing gang app specifically
> after the placeholder creation and in the process of replacement, restart can
> lead to the below described incorrect behaviour:
> During restore, there is no guarantee on the ordering of pods coming from K8s
> lister especially when all the pods created with the same second timestamp.
> k8s use the seconds based timestamp, which means all pods created with in
> same second has same timestamp. During this situation, whichever pod comes
> first from lister, YK designate it as originator pod. So, any placeholder
> could become the originator pod and actual originator pod has been lost. This
> change could cause rippling effects leading to weird behaviour and needs to
> be fixed.
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