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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6334) Fetcher#copyMapOutput is leaking usedMemory upon IOException during InMemoryMapOutput shuffle handler
Date Tue, 28 Apr 2015 19:23:07 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14517833#comment-14517833
] 

Hadoop QA commented on MAPREDUCE-6334:
--------------------------------------

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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  14m 37s | 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} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | javac |   7m 31s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 30s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 22s | The applied patch does not increase
the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle |   5m 28s | There were no new checkstyle issues. |
| {color:green}+1{color} | install |   1m 34s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 32s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   1m 15s | The patch does not introduce any new Findbugs
(version 2.0.3) warnings. |
| {color:green}+1{color} | mapreduce tests |   1m 37s | Tests passed in hadoop-mapreduce-client-core.
|
| | |  42m 29s | |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12728866/MAPREDUCE-6334.002.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / eccf709 |
| hadoop-mapreduce-client-core test log | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5465/artifact/patchprocess/testrun_hadoop-mapreduce-client-core.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5465/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/5465/console |


This message was automatically generated.

> Fetcher#copyMapOutput is leaking usedMemory upon IOException during InMemoryMapOutput
shuffle handler
> -----------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6334
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6334
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>            Reporter: Eric Payne
>            Assignee: Eric Payne
>            Priority: Blocker
>         Attachments: MAPREDUCE-6334.001.patch, MAPREDUCE-6334.002.patch
>
>
> We are seeing this happen when
> - an NM's disk goes bad during the creation of map output(s)
> - the reducer's fetcher can read the shuffle header and reserve the memory
> - but gets an IOException when trying to shuffle for InMemoryMapOutput
> - shuffle fetch retry is enabled



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