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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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