Provide a way to query job tracker about its daemon thread's status
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Key: HADOOP-5525
URL: https://issues.apache.org/jira/browse/HADOOP-5525
Project: Hadoop Core
Issue Type: New Feature
Components: mapred
Reporter: Amareshwari Sriramadasu
Assignee: Amareshwari Sriramadasu
Fix For: 0.21.0
Admin needs to know the status of all threads in JobTracker (whether they are
alive or not) at any point of time. This helps alot in debugging crashes.
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