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Posted to issues@beam.apache.org by "Kenneth Knowles (Jira)" <ji...@apache.org> on 2021/04/26 22:30:00 UTC

[jira] [Commented] (BEAM-12229) WindmillStateCache has a 0% hit rate in 2.29

    [ https://issues.apache.org/jira/browse/BEAM-12229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17332789#comment-17332789 ] 

Kenneth Knowles commented on BEAM-12229:
----------------------------------------

Is there a way to test for this? Can we bisect?

> WindmillStateCache has a 0% hit rate in 2.29
> --------------------------------------------
>
>                 Key: BEAM-12229
>                 URL: https://issues.apache.org/jira/browse/BEAM-12229
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-dataflow
>    Affects Versions: 2.29.0
>            Reporter: Steve Niemitz
>            Assignee: Reuven Lax
>            Priority: P1
>
> After upgrading to 2.29, I noticed that our jobs have a 0% state cache hit rate.  I see a very high eviction rate from the cache as well (it used to be ~0, now its ~100,000+ evictions / second).
> We never were on 2.28, so I can't say if it worked there, but it did work on 2.27.
>  
>  



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