job tracker should limit the number of completed/failed jobs in RAM
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Key: HADOOP-787
URL: http://issues.apache.org/jira/browse/HADOOP-787
Project: Hadoop
Issue Type: Bug
Components: mapred
Affects Versions: 0.9.0
Reporter: Owen O'Malley
Assigned To: Arun C Murthy
Fix For: 0.10.0
The job tracker currently runs out of memory when a user runs a lot of small
jobs back to back. To bound the amount of RAM that the job tracker consumes
recording completed/failed jobs, I think that the JobTracker should limit the
number of "remembered" jobs per a user to
jobtracker.max.remembered.task.per.user (default 100).
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