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https://issues.apache.org/jira/browse/HIVE-16072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15933122#comment-15933122
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Prasanth Jayachandran commented on HIVE-16072:
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[~leftylev] Thanks for pointing out! Yes. I think metrics added for LLAP should
be documented. Will update the docs shortly.
> LLAP: Add some additional jvm metrics for hadoop-metrics2
> ----------------------------------------------------------
>
> Key: HIVE-16072
> URL: https://issues.apache.org/jira/browse/HIVE-16072
> Project: Hive
> Issue Type: Bug
> Components: llap
> Affects Versions: 2.2.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Fix For: 2.2.0
>
> Attachments: HIVE-16072.1.patch, HIVE-16072.2.patch
>
>
> It will be helpful for debugging to expose some metrics like buffer pool,
> file descriptors etc. that are not exposed via Hadoop's JvmMetrics. We
> already a /jmx endpoint that gives out these info but we don't know the
> timestamp of allocations, number file descriptors to correlated with the
> logs. This will better suited for graphing tools.
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