Details
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Improvement
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Status: Resolved
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Minor
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Resolution: Fixed
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3.1.2
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None
Description
When a executor received a TERM signal, it (the second TERM signal) will lock java.lang.Shutdown class and then call Shutdown.exit() method to exit the JVM.
Shutdown will call SparkShutdownHook to shutdown the executor.
During the executor shutdown phase, RemoteProcessDisconnected event will be send to the RPC inbox, and then WorkerWatcher will try to call System.exit(-1) again.
Because java.lang.Shutdown has already locked, a deadlock has occurred.