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https://issues.apache.org/jira/browse/HIVE-26155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-26155 started by Antal Sinkovits.
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> Create a new connection pool for compaction
> -------------------------------------------
>
> Key: HIVE-26155
> URL: https://issues.apache.org/jira/browse/HIVE-26155
> Project: Hive
> Issue Type: Improvement
> Components: Standalone Metastore
> Reporter: Antal Sinkovits
> Assignee: Antal Sinkovits
> Priority: Major
> Labels: compaction
>
> Currently the TxnHandler uses 2 connection pools to communicate with the HMS:
> the default one and one for mutexing. If compaction is configured incorrectly
> (e.g. too many Initiators are running on the same db) then compaction can use
> up all the connections in the default connection pool and all user queries
> can get stuck.
> We should have a separate connection pool (configurable size) just for
> compaction-related activities.
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