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https://issues.apache.org/jira/browse/IMPALA-3291?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-3291:
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Issue Type: Improvement (was: Bug)
> Pause monitor thread should check that the tcmalloc heap does not block
> -----------------------------------------------------------------------
>
> Key: IMPALA-3291
> URL: https://issues.apache.org/jira/browse/IMPALA-3291
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Affects Versions: Impala 2.6.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
>
> IMPALA-3114 added a "pause monitor" process which wakes up periodically to
> check that there are no pauses. However, it doesn't do anything when it wakes
> up aside from check the time. Since it does no allocation, it won't notice
> pauses like IMPALA-2800 where tcmalloc is holding a process-wide lock for
> many seconds. The pause monitor should do some allocation so that it can warn
> if the heap lock is blocked.
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