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Posted to issues@yunikorn.apache.org by "Rainie Li (Jira)" <ji...@apache.org> on 2024/03/10 06:50:00 UTC

[jira] [Closed] (YUNIKORN-2322) Investigate YuniKorn stuck when scheduling latency is high

     [ https://issues.apache.org/jira/browse/YUNIKORN-2322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rainie Li closed YUNIKORN-2322.
-------------------------------
    Resolution: Fixed

> Investigate YuniKorn stuck when scheduling latency is high
> ----------------------------------------------------------
>
>                 Key: YUNIKORN-2322
>                 URL: https://issues.apache.org/jira/browse/YUNIKORN-2322
>             Project: Apache YuniKorn
>          Issue Type: Task
>          Components: core - common
>            Reporter: Rainie Li
>            Assignee: Rainie Li
>            Priority: Major
>         Attachments: Screenshot 2024-01-10 at 4.31.52 PM.png, Screenshot 2024-01-10 at 4.33.40 PM.png, Screenshot 2024-01-11 at 3.40.48 PM-1.png, Screenshot 2024-01-11 at 3.40.48 PM.png, pprof.k8s_yunikorn_scheduler.samples.cpu.015.pb (2).gz
>
>
> We are seeing service stuck when latency increases, even cluster has resource, YuniKorn will not be able to schedule apps. We have to manually restart YuniKorn.
> we did profiling to find out most time are used by *tryReservedAllocate.* 
> Attached ** profiling screenshot and service latency data.



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