[Herriot] TaskMemoryManager should log process-tree's status while killing tasks
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Key: MAPREDUCE-1963
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1963
Project: Hadoop Map/Reduce
Issue Type: Task
Components: test
Reporter: Vinay Kumar Thota
1. Execute a streaming job which will increase memory usage beyond configured memory limits
during mapping phase. TaskMemoryManager should logs a map task's process-tree's status just
before killing the task.
2. Execute a streaming job which will increase memory usage beyond configured memory limits
during reduce phase. TaskMemoryManager should logs a reduce task's process-tree's status
just before killing the task.
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