Sometime JobTracker holds stale refrence of JobInProgress.
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Key: MAPREDUCE-1540
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1540
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: jobtracker
Affects Versions: 0.20.2
Reporter: Karam Singh
Ran random writer, sort and sort validate job. Checked the jmap -histo:live and
verified that there is no reference of JobInProgress after Jobs are retired
Now submitter around 77 sleeps of around 10000 maps. then after 1 hr killed
all the job when jobs got retired. again checked jmap -histo:live for
JobInProgress for JT process found 2 references were there.
Found this while doing snaity testing of 1316
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