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From "Christian Kunz (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3670) JobTracker running out of heap space
Date Mon, 30 Jun 2008 16:47:45 GMT
JobTracker running out of heap space
------------------------------------

                 Key: HADOOP-3670
                 URL: https://issues.apache.org/jira/browse/HADOOP-3670
             Project: Hadoop Core
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.17.0
            Reporter: Christian Kunz


The JobTracker on our 0.17.0 installation runs out of heap space rather quickly, with less
than 100 jobs (at one time even after just 16 jobs).
Running in 64-bit mode with larger heap space does not help -- it will use up all available
RAM.

2008-06-28 05:17:06,661 INFO org.apache.hadoop.ipc.Server: IPC Server handler 62 on 9020,
call he
artbeat(org.apache.hadoop.mapred.TaskTrackerStatus@6f81c6, false, true, 17384) from xxx.xxx.xxx.xxx
:51802: error: java.io.IOException: java.lang.OutOfMemoryError: GC overhead limit exceeded
java.io.IOException: java.lang.OutOfMemoryError: GC overhead limit exceeded




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