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https://issues.apache.org/jira/browse/IMPALA-12321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenzhe Zhou resolved IMPALA-12321.
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Target Version: Impala 4.3.0
Resolution: Fixed
> Fix the race condition for updating active catalogd when CatalogD HA is
> enabled
> -------------------------------------------------------------------------------
>
> Key: IMPALA-12321
> URL: https://issues.apache.org/jira/browse/IMPALA-12321
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Affects Versions: Impala 4.3.0
> Reporter: Wenzhe Zhou
> Assignee: Wenzhe Zhou
> Priority: Major
> Fix For: Impala 4.3.0
>
>
> When CatalogD HA is enabled, statestored sends the address of current active
> catalogd to coordinators and catalogds during registration, or a new active
> catalogd is elected. Statestored sends the active catalogd in two different
> kinds of RPCs. If there are more than one election changes in short time,
> coordinators and catalogds could receive RPCs in the order which is different
> from the changing order on statestore. To make coordinators and catalogds to
> have same view as statestore, we have to avoid to overwrite the later version
> of active catalogd with previous change.
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