[HADOOP-3670] JobTracker running out of heap space

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.17.0
• Fix Version/s: 0.18.0
• Hadoop Flags: Reviewed
• Assignee: Amareshwari Sriramadasu
• Reporter: Christian Kunz
• Created: 30/Jun/08 16:46
• Updated: 08/Jul/09 16:52
• Resolved: 16/Jul/08 12:46

Description

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