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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6222) HistoryServer Hangs Processing Large Jobs
Date Fri, 01 May 2015 02:49:06 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14522690#comment-14522690
] 

Hadoop QA commented on MAPREDUCE-6222:
--------------------------------------

\\
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| (x) *{color:red}-1 overall{color}* |
\\
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  14m 38s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to include 1 new
or modified test files. |
| {color:green}+1{color} | javac |   7m 31s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 35s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 23s | The applied patch does not increase
the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle |   1m  0s | The applied patch generated  4 new checkstyle
issues (total was 19, now 23). |
| {color:green}+1{color} | whitespace |   0m  1s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 41s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 32s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   1m 39s | The patch does not introduce any new Findbugs
(version 2.0.3) warnings. |
| {color:green}+1{color} | mapreduce tests |   9m  3s | Tests passed in hadoop-mapreduce-client-app.
|
| {color:green}+1{color} | mapreduce tests |   5m 43s | Tests passed in hadoop-mapreduce-client-hs.
|
| | |  51m 57s | |
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12729625/MAPREDUCE-6222.006.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 87e9978 |
| checkstyle |  https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5479/artifact/patchprocess/diffcheckstylehadoop-mapreduce-client-app.txt
|
| hadoop-mapreduce-client-app test log | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5479/artifact/patchprocess/testrun_hadoop-mapreduce-client-app.txt
|
| hadoop-mapreduce-client-hs test log | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5479/artifact/patchprocess/testrun_hadoop-mapreduce-client-hs.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5479/testReport/
|
| Java | 1.7.0_55 |
| uname | Linux asf905.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep
3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5479/console |


This message was automatically generated.

> HistoryServer Hangs Processing Large Jobs
> -----------------------------------------
>
>                 Key: MAPREDUCE-6222
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6222
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Andrew Johnson
>            Assignee: Ray Chiang
>         Attachments: JHS New Display Top.png, JHS Original Display Top.png, MAPREDUCE-6222.001.patch,
MAPREDUCE-6222.002.patch, MAPREDUCE-6222.003.patch, MAPREDUCE-6222.005.patch, MAPREDUCE-6222.006.patch,
head.jhist, historyserver_jstack.txt
>
>
> I'm encountering an issue with the Mapreduce HistoryServer processing the history files
for large jobs.  This has come up several times with for jobs with around 60000 total tasks.
 When the HistoryServer loads the .jhist file from HDFS for a job of that size (which is usually
around 500 Mb), the HistoryServer's CPU usage spiked and the UI became unresponsive.  After
about 10 minutes I restarted the HistoryServer and it was behaving normally again.
> The cluster is running CDH 5.3 (2.5.0-cdh5.3.0).  I've attached the output of jstack
from a time this was occurring.



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