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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