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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-16072) LLAP: Add some additional jvm metrics for hadoop-metrics2
Date Fri, 17 Mar 2017 02:28:42 GMT

    [ https://issues.apache.org/jira/browse/HIVE-16072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15929346#comment-15929346
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Lefty Leverenz commented on HIVE-16072:
---------------------------------------

[~prasanth_j], should these metrics be documented in the wiki?  And should other LLAP metrics
created by HIVE-9801 also be documented?

> 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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