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https://issues.apache.org/jira/browse/IMPALA-2990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Tauber-Marshall resolved IMPALA-2990.
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Resolution: Fixed
Fix Version/s: Impala 3.3.0
> Coordinator should timeout and cancel queries with unresponsive / stuck
> executors
> ---------------------------------------------------------------------------------
>
> Key: IMPALA-2990
> URL: https://issues.apache.org/jira/browse/IMPALA-2990
> Project: IMPALA
> Issue Type: Bug
> Components: Distributed Exec
> Affects Versions: Impala 2.3.0
> Reporter: Sailesh Mukil
> Assignee: Thomas Tauber-Marshall
> Priority: Critical
> Labels: hang, observability, supportability
> Fix For: Impala 3.3.0
>
>
> The coordinator currently waits indefinitely if it does not hear back from a
> backend. This could cause a query to hang indefinitely in case of a network
> error, etc.
> We should add logic for determining when a backend is unresponsive and kill
> the query. The logic should mostly revolve around Coordinator::Wait() and
> Coordinator::UpdateFragmentExecStatus() based on whether it receives periodic
> updates from a backed (via FragmentExecState::ReportStatusCb()).
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