[jira] [Commented] (MAPREDUCE-5451) MR uses LD_LIBRARY_PATH which doesn't mean anything in Windows

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

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13757408#comment-13757408 ] 

Hadoop QA commented on MAPREDUCE-5451:
--------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12601282/MAPREDUCE-5451-5.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:red}-1 core tests{color}.  The following test timeouts occurred in hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient:

org.apache.hadoop.mapreduce.v2.TestUberAM

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3980//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3980//console

This message is automatically generated.
                
> MR uses LD_LIBRARY_PATH which doesn't mean anything in Windows
> --------------------------------------------------------------
>
>                 Key: MAPREDUCE-5451
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5451
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 3.0.0, 2.1.1-beta
>         Environment: Windows
>            Reporter: Mostafa Elhemali
>            Assignee: Yingda Chen
>         Attachments: MAPREDUCE-5451-2.patch, MAPREDUCE-5451-3.patch, MAPREDUCE-5451-4.patch, MAPREDUCE-5451-5.patch, MAPREDUCE-5451.patch, YARN-729.patch
>
>
> In order to set the path for loading native libraries, MR relies on the default value of the mapreduce.admin.user.env configuration setting the LD_LIBRARY_PATH environment entry. There are two problems with this setting in Windows:
> a) LD_LIBRARY_PATH doesn't mean anything in Windows.
> b) It sets it using $HADOOP_COMMON_HOME, instead of %HADOOP_COMMON_HOME%.
> The default value here should be platform-dependent (use the PATH variable in Windows instead of LD_LIBRARY_PATH), or we should rely on another mechanism. The net effect is that in Windows unless this configuration is over-ridden MR jobs fail with this error:
> {code}
> 2013-05-29 13:51:41,049 FATAL [main] org.apache.hadoop.mapred.YarnChild: Error running child : java.lang.UnsatisfiedLinkError: org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z
> 	at org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Native Method)
> 	at org.apache.hadoop.io.nativeio.NativeIO$Windows.access(NativeIO.java:393)
> 	at org.apache.hadoop.fs.FileUtil.canRead(FileUtil.java:928)
> 	at org.apache.hadoop.util.DiskChecker.checkAccessByFileMethods(DiskChecker.java:177)
> 	at org.apache.hadoop.util.DiskChecker.checkDirAccess(DiskChecker.java:164)
> 	at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:98)
> 	at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.confChanged(LocalDirAllocator.java:288)
> 	at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.getLocalPathToRead(LocalDirAllocator.java:431)
> 	at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathToRead(LocalDirAllocator.java:164)
> 	at org.apache.hadoop.mapred.YarnChild.configureLocalDirs(YarnChild.java:235)
> 	at org.apache.hadoop.mapred.YarnChild.configureTask(YarnChild.java:294)
> 	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:143)
> {code}

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