Task's process trees may not be killed if a TT is restarted
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Key: MAPREDUCE-762
URL: https://issues.apache.org/jira/browse/MAPREDUCE-762
Project: Hadoop Map/Reduce
Issue Type: Bug
Reporter: Hemanth Yamijala
Some work has been done to make sure the tasktrackers kill process trees of
tasks when they finish (either successfully, or with failures or when they are
killed). Related JIRAs are HADOOP-2721, HADOOP-5488 and HADOOP-5420. But when
TTs are restarted, we do not handle killing of process trees - though tasks
will themselves die on re-establishing contact with the TT.
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