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Posted to issues@hive.apache.org by "Prasanth Jayachandran (JIRA)" <ji...@apache.org> on 2016/02/18 20:06:18 UTC
[jira] [Assigned] (HIVE-13087) LLAP: Print STW pause time and
useful application time
[ https://issues.apache.org/jira/browse/HIVE-13087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Prasanth Jayachandran reassigned HIVE-13087:
--------------------------------------------
Assignee: Prasanth Jayachandran
> 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
>
> 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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