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Posted to issues@spark.apache.org by "Timothy Chen (JIRA)" <ji...@apache.org> on 2015/08/12 10:20:45 UTC

[jira] [Created] (SPARK-9873) Cap the amount of executors launched in Mesos fine grain mode

Timothy Chen created SPARK-9873:
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             Summary: Cap the amount of executors launched in Mesos fine grain mode
                 Key: SPARK-9873
                 URL: https://issues.apache.org/jira/browse/SPARK-9873
             Project: Spark
          Issue Type: Improvement
          Components: Mesos
            Reporter: Timothy Chen


Currently in fine grain mode as long as there is resources available that matches the scheduler requirement Spark will try to use the resources offered by mesos, which means to excessive resource usage that can lead to other frameworks not able to get their fair share.

We should add a option to cap the number of executors launched, so the combination of spark.task.cpus and spark.mesos.executor.max is the total amount of cores it will grab.



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