[jira] [Commented] (MAPREDUCE-3115) OOM When the value for the property "mapred.map.multithreadedrunner.class" is set to MultithreadedMapper instance.

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3115?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14525135#comment-14525135 ] 

Hadoop QA commented on MAPREDUCE-3115:
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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 41s | 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 30s | 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:green}+1{color} | checkstyle |   1m 20s | There were no new checkstyle issues. |
| {color:red}-1{color} | whitespace |   0m  0s | The patch has 2  line(s) that end in whitespace. Use git apply --whitespace=fix. |
| {color:green}+1{color} | install |   1m 32s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 33s | The patch built with eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   1m 56s | The patch does not introduce any new Findbugs (version 2.0.3) warnings. |
| {color:green}+1{color} | mapreduce tests |   1m 34s | Tests passed in hadoop-mapreduce-client-core. |
| {color:green}+1{color} | mapreduce tests | 106m 51s | Tests passed in hadoop-mapreduce-client-jobclient. |
| | | 145m 58s | |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12555686/MAPREDUCE-3115.2.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / f1a152c |
| whitespace | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5584/artifact/patchprocess/whitespace.txt |
| hadoop-mapreduce-client-core test log | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5584/artifact/patchprocess/testrun_hadoop-mapreduce-client-core.txt |
| hadoop-mapreduce-client-jobclient test log | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5584/artifact/patchprocess/testrun_hadoop-mapreduce-client-jobclient.txt |
| Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5584/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf907.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/5584/console |


This message was automatically generated.

> OOM When the value for the property "mapred.map.multithreadedrunner.class" is set to MultithreadedMapper instance.
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3115
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3115
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv1
>    Affects Versions: 0.23.0, 1.0.0
>         Environment: NA
>            Reporter: Bhallamudi Venkata Siva Kamesh
>         Attachments: MAPREDUCE-3115.2.patch, MAPREDUCE-3115.patch
>
>
> When we set the value for the property *mapred.map.multithreadedrunner.class* as instance of MultithreadedMapper, using MultithreadedMapper.setMapperClass(), it simply throws IllegalArgumentException.
> But when we set the same property, using job's conf object using job.getConfiguration().setClass(*mapred.map.multithreadedrunner.class*, MultithreadedMapper.class, Mapper.class), throws OOM.



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