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Date: Fri, 14 Oct 2011 01:34:12 +0000 (UTC)
From: "Hudson (Commented) (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-3124) mapper failed with failed to
 load native libs
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-3124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13127216#comment-13127216 ] 

Hudson commented on MAPREDUCE-3124:
-----------------------------------

Integrated in Hadoop-Common-trunk-Commit #1080 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/1080/])
    MAPREDUCE-3124. Fixed location of native libs i.e. libhadoop.so for containers. Contributed by John George.

acmurthy : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1183188
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/MRJobConfig.java

                
> mapper failed with failed to load native libs
> ---------------------------------------------
>
>                 Key: MAPREDUCE-3124
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3124
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0, 0.24.0
>            Reporter: Thomas Graves
>            Assignee: John George
>            Priority: Blocker
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-3124.patch, MAPREDUCE-3124.patch, MAPREDUCE-3124.patch
>
>
> hadoop jar hadoop-mapreduce-examples-*.jar sort -Dmapreduce.job.acl-view
> -job=* -Dmapreduce.map.output.compress=true 
> -Dmapreduce.map.output.compress.codec=org.apache.hadoop.io.compress.GzipCodec 
> -Dmapreduce.output.fileoutputformat.compress=true  -Dmapreduce.output.fileoutputformat.compression.type=NONE -Dmap
> reduce.output.fileoutputformat.compression.codec=org.apache.hadoop.io.compress.GzipCodec  -outKey
> org.apache.hadoop.io.Text -outValue org.apache.hadoop.io.Text  Compression/textinput Compression/textoutput-1317315994
> This will fail with native libs not found error unless -Dmapred.child.java.opts='-Djava.library.path=${HADOOP_COMMON_HOME}/lib/native/Linux-i386-32' is added.
> The error in container log:
> 2011-09-29 17:06:56,787 DEBUG org.apache.hadoop.util.NativeCodeLoader: Trying to load the custom-built native-hadoop
> library...2011-09-29 17:06:56,787 DEBUG org.apache.hadoop.util.NativeCodeLoader: Failed to load native-hadoop with
> error: java.lang.UnsatisfiedLinkError: no hadoop in java.library.path2011-09-29 17:06:56,787 DEBUG
> org.apache.hadoop.util.NativeCodeLoader:
> java.library.path=/share/gridjdk-1.6.0_21/jre/lib/i386/server:/share/gridjdk-1.6.0_21/jre/lib/i386:/share/gridjdk-1.6.0_21/jre/../lib/i386:/tmp/mapred-local/usercache/hadoopqa/appcache/application_1317314754104_0012/container_1317314754104_0012_01_000002:/current/lib:/usr/java/packages/lib/i386:/lib:/usr/lib2011-09-29
> 17:06:56,787 WARN org.apache.hadoop.util.NativeCodeLoader: Unable to load native-hadoop library for your platform...
> using builtin-java classes where applicable
> Also note that the error that shows up at the application master for this is terrible:
> Container killed by the ApplicationMaster. Container killed on request. Exit code is 137 Too Many fetch failures.Failing the attempt 

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