Synchronization bugs in JvmManager
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Key: MAPREDUCE-2224
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2224
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: tasktracker
Affects Versions: 0.22.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon
Priority: Critical
Fix For: 0.22.0
JvmManager.JvmManagerForType has several HashMap members that are
inconsistently synchronized. I've seen sporadic NPEs in the 0.20 version of
this code which has similar bugs.
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