[jira] [Assigned] (YUNIKORN-3112) Enhance rate limiting of unschedulable pod events

["TingYao Huang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YUNIKORN-3112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

TingYao Huang reassigned YUNIKORN-3112:
---------------------------------------

    Assignee: TingYao Huang

> Enhance rate limiting of unschedulable pod events
> -------------------------------------------------
>
>                 Key: YUNIKORN-3112
>                 URL: https://issues.apache.org/jira/browse/YUNIKORN-3112
>             Project: Apache YuniKorn
>          Issue Type: Bug
>          Components: core - scheduler
>            Reporter: Peter Bacsko
>            Assignee: TingYao Huang
>            Priority: Major
>
> Sending out events in every 15 seconds for unschedulable pods can result in performance degradation of etcd if the number of such pods are large.
> Possible approaches:
>  * More aggressive rate limiting, eg. 5 minutes instead of 15 seconds
>  * Do not send an update at all if the event message is not changing
>  * Do not send large messages - just send the failed plugin instead of a long diagnostic message (eg. "TaintToleration (4x)" instead of a longer "node(s) had untolerated taint \{xyz: abc} (4x); failed plugin: 'TaintToleration'")



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