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Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/06/19 20:02:00 UTC

[jira] [Resolved] (IMPALA-3393) Report thread wake up interval is not well distributed

     [ https://issues.apache.org/jira/browse/IMPALA-3393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong resolved IMPALA-3393.
-----------------------------------
    Resolution: Later

Closing unless we see that it is a problem in practice.

> Report thread wake up interval is not well distributed
> ------------------------------------------------------
>
>                 Key: IMPALA-3393
>                 URL: https://issues.apache.org/jira/browse/IMPALA-3393
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>    Affects Versions: Impala 2.5.0
>            Reporter: Huaisi Xu
>            Priority: Minor
>
> https://github.com/cloudera/Impala/blob/cdh5-trunk/be/src/runtime/plan-fragment-executor.cc#L398
> We take an integer from 0 to 4. so if there are 200 nodes then ~40 of them will report at the same time every 5 seconds. This does not take into account fragment start time is basically random...



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