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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