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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/09/01 20:23:20 UTC

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

     [ https://issues.apache.org/jira/browse/SPARK-17365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-17365:
------------------------------------

    Assignee:     (was: Apache Spark)

> 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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