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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Moved: (MAPREDUCE-1777) In streaming, jobs that used to work, crash in the map phase -- even if the mapper is /bin/cat
Date Fri, 07 May 2010 05:39:53 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amareshwari Sriramadasu moved HADOOP-2438 to MAPREDUCE-1777:
------------------------------------------------------------

              Project: Hadoop Map/Reduce  (was: Hadoop Common)
                  Key: MAPREDUCE-1777  (was: HADOOP-2438)
    Affects Version/s:     (was: 0.15.1)

> In streaming, jobs that used to work, crash in the map phase -- even if the mapper is
/bin/cat
> ----------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1777
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1777
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: arkady borkovsky
>
> The exception is either "out of memory" of or "broken pipe" -- see both stack dumps bellow.
> st Hadoop input: |null|
> last tool output: |[B@20fa83|
> Date: Sat Dec 15 21:02:18 UTC 2007
> java.io.IOException: Broken pipe
>         at java.io.FileOutputStream.writeBytes(Native Method)
>         at java.io.FileOutputStream.write(FileOutputStream.java:260)
>         at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
>         at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
>         at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:124)
>         at java.io.DataOutputStream.flush(DataOutputStream.java:106)
>         at org.apache.hadoop.streaming.PipeMapper.map(PipeMapper.java:96)
>         at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:192)
>         at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1760)
>         at org.apache.hadoop.streaming.PipeMapper.map(PipeMapper.java:107)
>         at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:192)
>         at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1760)
> -------------------------------------------------
> java.io.IOException: MROutput/MRErrThread
> failed:java.lang.OutOfMemoryError: Java heap space
>         at java.util.Arrays.copyOf(Arrays.java:2786)
>         at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:94)
>         at java.io.DataOutputStream.write(DataOutputStream.java:90)
>         at org.apache.hadoop.io.Text.write(Text.java:243)
>         at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.collect (MapTask.java:347)
>         at org.apache.hadoop.streaming.PipeMapRed$MROutputThread.run (PipeMapRed.java:344)
>         at org.apache.hadoop.streaming.PipeMapper.map(PipeMapper.java:76)
>         at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:192)
>         at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java: 
> 1760)

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