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From "Ruslan Dautkhanov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-21460) Spark dynamic allocation breaks when ListenerBus event queue runs full
Date Tue, 18 Jul 2017 17:03:00 GMT
Ruslan Dautkhanov created SPARK-21460:
-----------------------------------------

             Summary: Spark dynamic allocation breaks when ListenerBus event queue runs full
                 Key: SPARK-21460
                 URL: https://issues.apache.org/jira/browse/SPARK-21460
             Project: Spark
          Issue Type: Bug
          Components: Scheduler, YARN
    Affects Versions: 2.2.0, 2.1.1, 2.1.0, 2.0.2, 2.0.0
         Environment: Spark 2.1 
Hadoop 2.6

            Reporter: Ruslan Dautkhanov
            Priority: Critical


When ListenerBus event queue runs full, spark dynamic allocation stops working - Spark fails
to shrink number of executors when there are no active jobs (Spark driver "thinks" there are
active jobs since it didn't capture when they finished) .

ps. What's worse it also makes Spark flood YARN RM with reservation requests, so YARN preemption
doesn't function properly too (we're on Spark 2.1 / Hadoop 2.6). 



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