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https://issues.apache.org/jira/browse/SPARK-16138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Graves resolved SPARK-16138.
-----------------------------------
Resolution: Fixed
Fix Version/s: 2.1.0
> YarnAllocator tries to cancel executor requests when we have none
> -----------------------------------------------------------------
>
> Key: SPARK-16138
> URL: https://issues.apache.org/jira/browse/SPARK-16138
> Project: Spark
> Issue Type: Bug
> Reporter: Peter Ableda
> Assignee: Peter Ableda
> Priority: Minor
> Fix For: 2.1.0
>
>
> Easy to reproduce:
> $ spark-shell
> > sc.parallelize(1 to 10000).count()
> After the computation finishes we have 0 pending tasks so we will need 0
> executors.
> {code}
> 16/06/21 04:07:41 INFO yarn.YarnAllocator: Driver requested a total number of
> 0 executor(s).
> 16/06/21 04:07:41 INFO yarn.YarnAllocator: Canceling requests for 0 executor
> containers
> 16/06/21 04:07:41 WARN yarn.YarnAllocator: Expected to find pending requests,
> but found none.
> ...
> 16/06/21 04:08:41 INFO yarn.YarnAllocator: Canceling requests for 0 executor
> containers
> 16/06/21 04:08:41 WARN yarn.YarnAllocator: Expected to find pending requests,
> but found none.
> 16/06/21 04:08:41 INFO yarn.ApplicationMaster$AMEndpoint: Driver requested to
> kill executor(s) 1.
> 16/06/21 04:08:48 INFO yarn.YarnAllocator: Driver requested a total number of
> 0 executor(s).
> 16/06/21 04:08:48 INFO yarn.YarnAllocator: Canceling requests for 0 executor
> containers
> 16/06/21 04:08:48 WARN yarn.YarnAllocator: Expected to find pending requests,
> but found none.
> 16/06/21 04:08:48 INFO yarn.ApplicationMaster$AMEndpoint: Driver requested to
> kill executor(s) 2.
> {code}
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