JobConf.getMemoryFor{Map|Reduce}Task doesn't fallback to newer config knobs
when mapred.taskmaxvmem is set to DISABLED_MEMORY_LIMIT of -1
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Key: MAPREDUCE-979
URL: https://issues.apache.org/jira/browse/MAPREDUCE-979
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: jobtracker, tasktracker
Affects Versions: 0.20.1
Reporter: Arun C Murthy
Fix For: 0.20.2
JobConf.getMemoryFor{Map|Reduce}Task doesn't fallback to newer config knobs
when mapred.taskmaxvmem is set to DISABLED_MEMORY_LIMIT of -1, this results in
failed job-submissions when mapred-default.xml has the default value of -1.
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