Race condition in re-init of TaskTracker
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Key: HADOOP-4924
URL: https://issues.apache.org/jira/browse/HADOOP-4924
Project: Hadoop Core
Issue Type: Bug
Reporter: Devaraj Das
Assignee: Devaraj Das
Priority: Blocker
Fix For: 0.20.0
The taskReportServer is stopped in the TaskTracker.close() method in a thread.
The race condition is:
1) TaskTracker.close() is invoked - this starts a thread to stop the
taskReportServer
2) TaskTracker.initialize is invoked - this tries to create a new
taskReportServer
Assume that the thread started to stop the taskReportServer gets to start its
work after (2) above. The thread will end up stopping the newly created
taskReportServer.
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