JobTracker got stuck
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Key: HADOOP-2837
URL: https://issues.apache.org/jira/browse/HADOOP-2837
Project: Hadoop Core
Issue Type: Bug
Reporter: Runping Qi
When a job tracker ran a job with a lot of map tasks,
the commit thread complained out of memory:
2008-02-14 02:52:13,809 ERROR org.apache.hadoop.mapred.JobTracker: Task Commit
Thread got an exception: java.lang.OutOfMemoryError: Java heap space
2008-02-14 02:53:18,543 ERROR org.apache.hadoop.mapred.JobTracker: Task Commit
Thread got an exception: java.lang.OutOfMemoryError: Java heap space
2008-02-14 02:53:26,965 ERROR org.apache.hadoop.mapred.JobTracker: Task Commit
Thread got an exception: java.lang.OutOfMemoryError: Java heap space
2008-02-14 02:54:27,009 ERROR org.apache.hadoop.mapred.JobTracker: Task Commit
Thread got an exception: java.lang.OutOfMemoryError: Java heap space
then later, the job tracker stopped making any progress, and stopped responding
web GUI.
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