[jira] [Updated] (HIVE-13087) LLAP: Print STW pause time and useful application time

["Prasanth Jayachandran (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-13087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Prasanth Jayachandran updated HIVE-13087:
-----------------------------------------
    Attachment: HIVE-13087.1.patch

> LLAP: Print STW pause time and useful application time
> ------------------------------------------------------
>
>                 Key: HIVE-13087
>                 URL: https://issues.apache.org/jira/browse/HIVE-13087
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 2.1.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>         Attachments: HIVE-13087.1.patch
>
>
> The daemons currently prints GC details. It will be useful to print the total useful time application spent and the total time for which application threads are stopped.
> Need to add
> {code}
> -XX:+PrintGCApplicationStoppedTime -XX:+PrintGCApplicationConcurrentTime
> {code}
> to get something like
> {code}
> Application time: 0.3440086 seconds
> Total time for which application threads were stopped: 0.0620105 seconds
> Application time: 0.2100691 seconds
> Total time for which application threads were stopped: 0.0890223 seconds
> {code}
> Reference: https://plumbr.eu/blog/performance-blog/logging-stop-the-world-pauses-in-jvm



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