JobTracker accepts heartbeats before startup is complete
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Key: HADOOP-5852
URL: https://issues.apache.org/jira/browse/HADOOP-5852
Project: Hadoop Core
Issue Type: Bug
Reporter: Todd Lipcon
Priority: Critical
When the JobTracker is instantiated, it starts listening on its RPC interfaces
before its startup is complete (ie the constructor is finished executing).
Because of this, jt.taskScheduler.taskTrackerManager can be null when the JT
receives a heartbeat from a TT. This throws the JT/TT pair into a tight
infinite loop (HADOOP-5761)
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