Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-3124

mapper failed with failed to load native libs

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Blocker Blocker
    • Resolution: Fixed
    • Affects Version/s: 0.23.0, 2.0.0-alpha
    • Fix Version/s: 0.23.0
    • Component/s: mrv2
    • Labels:
      None

      Description

      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

      1. MAPREDUCE-3124.patch
        4 kB
        John George
      2. MAPREDUCE-3124.patch
        0.8 kB
        John George
      3. MAPREDUCE-3124.patch
        1 kB
        John George

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          People

          • Assignee:
            John George
            Reporter:
            Thomas Graves
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            Dates

            • Created:
              Updated:
              Resolved:

              Development