TaskMemoryManagerThread crashes in a corner case
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Key: HADOOP-5516
URL: https://issues.apache.org/jira/browse/HADOOP-5516
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Affects Versions: 0.20.0
Reporter: Vinod K V
Priority: Blocker
TT's stdout says.
{code}
Exception in thread "org.apache.hadoop.mapred.TaskMemoryManagerThread"
java.lang.NullPointerException
at
org.apache.hadoop.util.ProcfsBasedProcessTree.getProcessTree(ProcfsBasedProcessTree.java:126)
at
org.apache.hadoop.mapred.TaskMemoryManagerThread.run(TaskMemoryManagerThread.java:200)
{code}
TaskMemoryManager crashes and no further memory management is done.
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