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