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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2015/07/15 23:32:04 UTC

[jira] [Resolved] (SPARK-8974) There is a bug in dynamicAllocation. When there is no running tasks, the number of executor a long time without running tasks, the number of executor does not reduce to the value of "spark.dynamicAllocation.minExecutors".

     [ https://issues.apache.org/jira/browse/SPARK-8974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-8974.
------------------------------
       Resolution: Fixed
    Fix Version/s: 1.5.0
                   1.4.2

Issue resolved by pull request 7352
[https://github.com/apache/spark/pull/7352]

> There is a bug in dynamicAllocation. When there is no running tasks, the number of executor a long time without running tasks, the number of executor does not reduce to the value of "spark.dynamicAllocation.minExecutors".
> -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-8974
>                 URL: https://issues.apache.org/jira/browse/SPARK-8974
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 1.4.0
>            Reporter: KaiXinXIaoLei
>            Priority: Minor
>             Fix For: 1.4.2, 1.5.0
>
>
> In yarn-client mode and config option "spark.dynamicAllocation.enabled " is true, when the state of ApplicationMaster is dead or disconnected, if the tasks are submitted  before new ApplicationMaster start. The thread of spark-dynamic-executor-allocation will throw exception, When ApplicationMaster is running and not tasks are running, the number of executor is not zero. So feture of dynamicAllocation are not  supported.



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