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