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https://issues.apache.org/jira/browse/IMPALA-13630?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Csaba Ringhofer resolved IMPALA-13630.
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Fix Version/s: Impala 5.0.0
Resolution: Fixed
> Don't hold KrpcDataStreamMgr::lock_ during CancelStream()
> ---------------------------------------------------------
>
> Key: IMPALA-13630
> URL: https://issues.apache.org/jira/browse/IMPALA-13630
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Csaba Ringhofer
> Priority: Major
> Fix For: Impala 5.0.0
>
>
> KrpcDataStreamMgr::Cancel()/KrpcDataStreamMgr::DeregisterRecvr() holds this
> global lock during the whole operation. KrpcDataStreamRecvr::CancelStream()
> may take some time to complete if it needs to wait for lock or there are a
> large number of deferred rpcs.
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