OutOfMemoryError : Java heap space errors in hadoop 0.14
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Key: HADOOP-2053
URL: https://issues.apache.org/jira/browse/HADOOP-2053
Project: Hadoop
Issue Type: Bug
Components: mapred
Affects Versions: 0.14.1
Reporter: lohit vijayarenu
Fix For: 0.15.0
In recent hadoop 0.14 we are seeing few jobs where map taskf fail with
java.lang.OutOfMemoryError: Java heap space problem
These were the same jobs which used to work fine with 0.13
<stack>
task_200710112103_0001_m_000015_1: 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:340)
</stack>
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