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https://issues.apache.org/jira/browse/HIVE-19752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16500799#comment-16500799
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Sahil Takiar commented on HIVE-19752:
-------------------------------------
Thanks for taking a look [~vihangk1]. I double checked, and the {{HashMap}} in
each {{PerfLogger}} gets reset by the {{Driver}} so we shouldn't be leaking
them. Each {{PerfLogger}} is {{ThreadLocal}} too, so it should be garbage
collected after each session is closed.
> PerfLogger integration for critical Hive-on-S3 paths
> ----------------------------------------------------
>
> Key: HIVE-19752
> URL: https://issues.apache.org/jira/browse/HIVE-19752
> Project: Hive
> Issue Type: Sub-task
> Components: Hive
> Reporter: Sahil Takiar
> Assignee: Sahil Takiar
> Priority: Major
> Attachments: HIVE-19752.1.patch
>
>
> There are several areas where Hive performs a lot of S3 operations, it would
> be good to add PerfLogger statements around this so we can measure how long
> they take.
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