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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-20202) Add profiler endpoint to HS2 and LLAP
Date Fri, 14 Sep 2018 05:27:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-20202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16614381#comment-16614381
] 

Hive QA commented on HIVE-20202:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12939526/HIVE-20202.9.patch

{color:red}ERROR:{color} -1 due to no test(s) being added or modified.

{color:green}SUCCESS:{color} +1 due to 14939 tests passed

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/13770/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/13770/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-13770/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12939526 - PreCommit-HIVE-Build

> Add profiler endpoint to HS2 and LLAP
> -------------------------------------
>
>                 Key: HIVE-20202
>                 URL: https://issues.apache.org/jira/browse/HIVE-20202
>             Project: Hive
>          Issue Type: New Feature
>    Affects Versions: 4.0.0, 3.2.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>            Priority: Major
>         Attachments: HIVE-20202.1.patch, HIVE-20202.2.patch, HIVE-20202.3.patch, HIVE-20202.4.patch,
HIVE-20202.5.patch, HIVE-20202.6.patch, HIVE-20202.7.patch, HIVE-20202.8.patch, HIVE-20202.9.patch
>
>
> Add a web endpoint for profiling based on async-profiler. This servlet should be added
to httpserver so that HS2 and LLAP daemons can output flamegraphs when their /prof endpoint
is hit. Since this will be based on [https://github.com/jvm-profiling-tools/async-profiler] heap
allocation, lock contentions, HW counters etc. will also be supported in addition to cpu profiling.
In most cases the profiling overhead is pretty low and is safe to run on production. More
analysis on CPU and memory overhead here [https://github.com/jvm-profiling-tools/async-profiler/issues/14] and
[https://github.com/jvm-profiling-tools/async-profiler/issues/131] 
>  
> For the impatient, here is the usage doc and the sample output [https://github.com/prasanthj/nightswatch/blob/master/README.md] 



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