In streaming, jobs that used to work, crash in the map phase -- even if the
mapper is /bin/cat
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Key: HADOOP-2438
URL: https://issues.apache.org/jira/browse/HADOOP-2438
Project: Hadoop
Issue Type: Bug
Affects Versions: 0.15.1
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: |[EMAIL PROTECTED]|
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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