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Posted to issues@spark.apache.org by "Dhruve Ashar (JIRA)" <ji...@apache.org> on 2016/09/01 20:09:21 UTC

[jira] [Created] (SPARK-17365) Kill multiple executors together to reduce lock contention

Dhruve Ashar created SPARK-17365:
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             Summary: Kill multiple executors together to reduce lock contention
                 Key: SPARK-17365
                 URL: https://issues.apache.org/jira/browse/SPARK-17365
             Project: Spark
          Issue Type: Improvement
          Components: Spark Core
            Reporter: Dhruve Ashar


To regulate pending and running executors we determine the executors which are eligible to kill and kill them iteratively rather than a loop. This does an RPC call and is synchronized leading to lock contention for SparkListenerBus. 

Side effect - listener bus is blocked while we iteratively remove executors.

 



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