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From "Prasanth Jayachandran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-16383) Switch to HikariCP as default connection pooling
Date Wed, 05 Apr 2017 22:30:42 GMT

    [ https://issues.apache.org/jira/browse/HIVE-16383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15957914#comment-15957914
] 

Prasanth Jayachandran commented on HIVE-16383:
----------------------------------------------

[~thejas] Yes. That's correct. I think it makes sense to leave the pool size at the default
10 and not mess with it because of the reasons you had mentioned above. 

Regd. Eugene's comment, since we are directly passing the configs with datanucleus prefix
adding separate configs for TxnHandler and ObjectStore will complicate configs. IMHO we can
hold on to the current defaults for now and when required we can follow up adding separate
configs for each. 

> Switch to HikariCP as default connection pooling
> ------------------------------------------------
>
>                 Key: HIVE-16383
>                 URL: https://issues.apache.org/jira/browse/HIVE-16383
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>    Affects Versions: 3.0.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>         Attachments: HIVE-16383.1.patch
>
>
> Since 3.0 is planned to move to JDK8, we can now switch to HikariCP as default connection
pooling for DN because of its improved performance over others. 



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