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Posted to issues-all@impala.apache.org by "Thomas Tauber-Marshall (Jira)" <ji...@apache.org> on 2021/04/01 16:35:00 UTC
[jira] [Assigned] (IMPALA-10591) Fix issues with failed
ReleaseQueryBackends rpc
[ https://issues.apache.org/jira/browse/IMPALA-10591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Thomas Tauber-Marshall reassigned IMPALA-10591:
-----------------------------------------------
Assignee: Thomas Tauber-Marshall
> Fix issues with failed ReleaseQueryBackends rpc
> -----------------------------------------------
>
> Key: IMPALA-10591
> URL: https://issues.apache.org/jira/browse/IMPALA-10591
> Project: IMPALA
> Issue Type: Sub-task
> Components: Backend
> Affects Versions: Impala 4.0
> Reporter: Thomas Tauber-Marshall
> Assignee: Thomas Tauber-Marshall
> Priority: Major
> Fix For: Impala 4.0
>
>
> Currently, if the admission control service is being used, the coordinator will attempt the ReleaseQueryBackends rpc up to 3 times before giving up. If a ReleaseQueryBackends rpc fails it can lead to resources not being released properly. If a subsequent ReleaseQuery rpc succeeds, we'll hit a DCHECK as AdmissionController::ReleaseQuery() assumes that all backends have already been released.
> We should clean this up and ensure that resources are always released properly.
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