OOM in the TaskTracker while serving map outputs
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Key: HADOOP-5184
URL: https://issues.apache.org/jira/browse/HADOOP-5184
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Reporter: Devaraj Das
Saw this exception in the TT logs:
2009-02-06 06:18:08,553 ERROR org.mortbay.log: EXCEPTION
java.lang.OutOfMemoryError: GC overhead limit exceeded
2009-02-06 06:18:11,247 ERROR org.mortbay.log: Error for /mapOutput
java.lang.OutOfMemoryError: GC overhead limit exceeded
2009-02-06 06:18:11,247 ERROR org.mortbay.log: Error for /mapOutput
java.lang.OutOfMemoryError: Java heap space
at java.nio.HeapByteBuffer.<init>(HeapByteBuffer.java:39)
at java.nio.ByteBuffer.allocate(ByteBuffer.java:312)
at
org.mortbay.io.nio.IndirectNIOBuffer.<init>(IndirectNIOBuffer.java:28)
at
org.mortbay.jetty.nio.AbstractNIOConnector.newBuffer(AbstractNIOConnector.java:71)
at org.mortbay.jetty.AbstractBuffers.getBuffer(AbstractBuffers.java:131)
at org.mortbay.jetty.HttpGenerator.addContent(HttpGenerator.java:145)
at
org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:642)
at
org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:577)
at
org.apache.hadoop.mapred.TaskTracker$MapOutputServlet.doGet(TaskTracker.java:2879)
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