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Posted to issues@spark.apache.org by "Aaron Davidson (JIRA)" <ji...@apache.org> on 2014/05/11 00:14:36 UTC

[jira] [Created] (SPARK-1771) CoarseGrainedSchedulerBackend is not resilient to Akka restarts

Aaron Davidson created SPARK-1771:
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             Summary: CoarseGrainedSchedulerBackend is not resilient to Akka restarts
                 Key: SPARK-1771
                 URL: https://issues.apache.org/jira/browse/SPARK-1771
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
            Reporter: Aaron Davidson


The exception reported in SPARK-1769 was propagated through the CoarseGrainedSchedulerBackend, and caused an Actor restart of the DriverActor. Unfortunately, this actor does not seem to have been written with Akka restartability in mind. For instance, the new DriverActor has lost all state about the prior Executors without cleanly disconnecting them. This means that the driver actually has executors attached to it, but doesn't think it does, which leads to mayhem of various sorts.



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