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https://issues.apache.org/jira/browse/SPARK-8974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14622101#comment-14622101
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Sean Owen commented on SPARK-8974:
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Why do you say this means it's not supported? it sounds like it works, but are
you saying there is a problem in error recovery? executor allocation should
fail in this case. But it should succeed if the AM recovers.
> The spark-dynamic-executor-allocation may be not supported
> ----------------------------------------------------------
>
> 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: 1.4.1
>
>
> 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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