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Mattias Aspholm commented on SPARK-14846: ----------------------------------------- Yes, you're right of course. Sorry about that. I'm still having problems with the driver not closing down in graceful (even though there's no work left), but I realise now my initial conclusions was bad, the reason why it hangs in awaitTermination is that the termination condition is not signaled. I need to find out why that happens. Ok for me to close this bug as invalid. I'll file another one if it turns out to be some bug after all. > Driver process fails to terminate when graceful shutdown is used > ---------------------------------------------------------------- > > Key: SPARK-14846 > URL: https://issues.apache.org/jira/browse/SPARK-14846 > Project: Spark > Issue Type: Bug > Components: Streaming > Affects Versions: 1.6.1 > Reporter: Mattias Aspholm > > During shutdown, the job scheduler in Streaming (JobScheduler.stop) spends > some time waiting for all queued work to complete. If graceful shutdown is > used, the time is 1 hour, for non-graceful shutdown it's 2 seconds. > The wait is implemented using the ThreadPoolExecutor.awaitTermination method > in java.util.concurrent. The problem is that instead of looping over the > method for the desired period of time, the wait period is passed in as the > timeout parameter to awaitTermination. > The result is that if the termination condition is false the first time, the > method will sleep for the timeout period before trying again. In the case of > graceful shutdown this means at least an hour's wait before the condition is > checked again, even though all work is completed in just a few seconds. The > driver process will continue to live during this time. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org