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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-21115) If the cores left is less than the coresPerExecutor,the cores left will not be allocated, so it should not to check in every schedule
Date Fri, 16 Jun 2017 06:02:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-21115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-21115:
------------------------------------

    Assignee:     (was: Apache Spark)

> If the cores left is less than the coresPerExecutor,the cores left will not be allocated,
so it should not to check in every schedule
> -------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-21115
>                 URL: https://issues.apache.org/jira/browse/SPARK-21115
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.1.1
>            Reporter: eaton
>            Priority: Minor
>
> If we start an app with the param --total-executor-cores=4 and spark.executor.cores=3,
the cores left is always 1, so it will try to allocate executors in the function org.apache.spark.deploy.master.startExecutorsOnWorkers
in every schedule.
> Another question is, is it will be better to allocate another executor with 1 core for
the cores left.



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