[jira] [Comment Edited] (YUNIKORN-2510) Placeholder processing starts immediately despite maxApplications limit

["Peter Bacsko (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YUNIKORN-2510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17829568#comment-17829568 ] 

Peter Bacsko edited comment on YUNIKORN-2510 at 3/21/24 2:00 PM:
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-I'm not sure if it's realistic or not, but #1 can also cause to reach the namespace quota more quickly if there's any. AFAIK we don't recommend using it with Yunikorn.-

EDIT: not relevant.


was (Author: pbacsko):
I'm not sure if it's realistic or not, but #1 can also cause to reach the namespace quota more quickly if there's any. AFAIK we don't recommend using it with Yunikorn.

> Placeholder processing starts immediately despite maxApplications limit
> -----------------------------------------------------------------------
>
>                 Key: YUNIKORN-2510
>                 URL: https://issues.apache.org/jira/browse/YUNIKORN-2510
>             Project: Apache YuniKorn
>          Issue Type: Bug
>          Components: core - scheduler
>            Reporter: Peter Bacsko
>            Assignee: Peter Bacsko
>            Priority: Major
>
> If the maxApplication limit is hit inside {{Application.tryAllocate()}}, we still create the placeholder pods in the shim. This has two consequences:
> -1. Although they stay in Pending state, these pods still consume resources in the cluster, because they are tracked by the API server.-
> 2. Placeholder timer is started immediately. If the timeout expires, it affects the application, even if it's not in a runnable state.
> #2 is more problematic and needs to be addressed. #1 is up to discussion.
> EDIT: #1 doesn't seem to be a problem. After further reviewing the code, we only start the timer after the first allocation. So looks like we need to decide whether immediate creation of PH pods is OK or not.



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