[jira] [Assigned] (HIVE-22469) Lower Metastore DB Connection Pool Size in QTests

["David Mollitor (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-22469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Mollitor reassigned HIVE-22469:
-------------------------------------


> Lower Metastore DB Connection Pool Size in QTests
> -------------------------------------------------
>
>                 Key: HIVE-22469
>                 URL: https://issues.apache.org/jira/browse/HIVE-22469
>             Project: Hive
>          Issue Type: Improvement
>          Components: Test, Tests
>    Affects Versions: 3.2.0
>            Reporter: David Mollitor
>            Assignee: David Mollitor
>            Priority: Minor
>
> Hive Metastore uses the 'HikariCP' database connection pool.  The default number of connections to the database is 10.  For the Qtests, connecting to a local DerbyDB, there need not be more than 1 connection.  Anymore simply adds undo overhead and by looking at the QTest logs, I see a bunch of 'connection refused' from HikariCP.  It may be the case that the standalone DB does not support that many concurrent connections anyway.
> https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-MetaStore



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