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Posted to common-dev@hadoop.apache.org by "Suman Sehgal (JIRA)" <ji...@apache.org> on 2009/05/12 14:41:45 UTC

[jira] Created: (HADOOP-5812) IllegalArgumentException is thrown if mapred local dir is not writable.

IllegalArgumentException is thrown if mapred local dir is not writable.
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                 Key: HADOOP-5812
                 URL: https://issues.apache.org/jira/browse/HADOOP-5812
             Project: Hadoop Core
          Issue Type: Bug
          Components: examples
    Affects Versions: 0.20.0
            Reporter: Suman Sehgal
            Priority: Minor


If specified mapred local directory doesn't have write permission or is non-existent  then "IllegalArgumentException" is thrown. Following error message was displayed while running a sleep job with non-writable mapred local directory specified in mapred-site.xml. 

sleep job command : $hadoop_home/bin/hadoop jar hadoop-examples.jar sleep -m 100 -r 10 

2009-05-12 05:36:46,491 INFO org.apache.hadoop.mapred.TaskInProgress: Error from attempt_200905120525_0001_m_000000_0: java.lang.IllegalArgumentException: n must be positive
        at java.util.Random.nextInt(Random.java:250)
        at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.confChanged(LocalDirAllocator.java:243)
        at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.getLocalPathForWrite(LocalDirAllocator.java:289)
        at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:124)
        at org.apache.hadoop.mapred.MapOutputFile.getSpillFileForWrite(MapOutputFile.java:107)
        at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.sortAndSpill(MapTask.java:1115)
        at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:1028)
        at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:357)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
        at org.apache.hadoop.mapred.Child.main(Child.java:170)

This error message(i.e. IllegalArgumentException) ,somehow, doesn't clearly indicate that problem is with mapred local directory. Error message should be more specific in this case.

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[jira] Updated: (HADOOP-5812) IllegalArgumentException is thrown if mapred local dir is not writable.

Posted by "Nigel Daley (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-5812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nigel Daley updated HADOOP-5812:
--------------------------------

    Tags: ygridqa

> IllegalArgumentException is thrown if mapred local dir is not writable.
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-5812
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5812
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: examples
>    Affects Versions: 0.20.0
>            Reporter: Suman Sehgal
>            Priority: Minor
>
> If specified mapred local directory doesn't have write permission or is non-existent  then "IllegalArgumentException" is thrown. Following error message was displayed while running a sleep job with non-writable mapred local directory specified in mapred-site.xml. 
> sleep job command : $hadoop_home/bin/hadoop jar hadoop-examples.jar sleep -m 100 -r 10 
> 2009-05-12 05:36:46,491 INFO org.apache.hadoop.mapred.TaskInProgress: Error from attempt_200905120525_0001_m_000000_0: java.lang.IllegalArgumentException: n must be positive
>         at java.util.Random.nextInt(Random.java:250)
>         at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.confChanged(LocalDirAllocator.java:243)
>         at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.getLocalPathForWrite(LocalDirAllocator.java:289)
>         at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:124)
>         at org.apache.hadoop.mapred.MapOutputFile.getSpillFileForWrite(MapOutputFile.java:107)
>         at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.sortAndSpill(MapTask.java:1115)
>         at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:1028)
>         at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:357)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
>         at org.apache.hadoop.mapred.Child.main(Child.java:170)
> This error message(i.e. IllegalArgumentException) ,somehow, doesn't clearly indicate that problem is with mapred local directory. Error message should be more specific in this case.

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