[jira] [Created] (SPARK-11120) maxNumExecutorFailures defaults to 3 under dynamic allocation

["Ryan Williams (JIRA)" <ji...@apache.org>]

Ryan Williams created SPARK-11120:
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             Summary: maxNumExecutorFailures defaults to 3 under dynamic allocation
                 Key: SPARK-11120
                 URL: https://issues.apache.org/jira/browse/SPARK-11120
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 1.5.1
            Reporter: Ryan Williams
            Priority: Minor


With dynamic allocation, the {{spark.executor.instances}} config is 0, meaning [this line|https://github.com/apache/spark/blob/4ace4f8a9c91beb21a0077e12b75637a4560a542/yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala#L66-L68] ends up with {{maxNumExecutorFailures}} equal to {{3}}, which for me has resulted in large dynamicAllocation jobs with hundreds of executors dying due to one bad node serially failing executors that are allocated on it.

I think that using {{spark.dynamicAllocation.maxExecutors}} would make most sense in this case; I frequently run shells that vary between 1 and 1000 executors, so using {{s.dA.minExecutors}} or {{s.dA.initialExecutors}} would still leave me with a value that is lower than makes sense.




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