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Posted to issues@spark.apache.org by "KaiXinXIaoLei (JIRA)" <ji...@apache.org> on 2015/07/14 13:46:04 UTC
[jira] [Updated] (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 ]
KaiXinXIaoLei updated SPARK-8974:
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Summary: 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". (was: There is a bug in dynamicAllocation. When there is no running tasks, the number of executor is not zero.)
> 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
> Fix For: 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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