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https://issues.apache.org/jira/browse/SPARK-22876?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16412379#comment-16412379
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MIN-FU YANG edited comment on SPARK-22876 at 3/24/18 3:00 AM:
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I found that current Yarn implementation doesn't expose the number of failed
app attempts in their API, maybe this feature should be pending until they
expose this number.
was (Author: lucasmf):
I found that current Yarn implementation doesn't expose number of failed app
attempts number in their API, maybe this feature should be pending until they
expose this number.
> spark.yarn.am.attemptFailuresValidityInterval does not work correctly
> ---------------------------------------------------------------------
>
> Key: SPARK-22876
> URL: https://issues.apache.org/jira/browse/SPARK-22876
> Project: Spark
> Issue Type: Bug
> Components: YARN
> Affects Versions: 2.2.0
> Environment: hadoop version 2.7.3
> Reporter: Jinhan Zhong
> Priority: Minor
>
> I assume we can use spark.yarn.maxAppAttempts together with
> spark.yarn.am.attemptFailuresValidityInterval to make a long running
> application avoid stopping after acceptable number of failures.
> But after testing, I found that the application always stops after failing n
> times ( n is minimum value of spark.yarn.maxAppAttempts and
> yarn.resourcemanager.am.max-attempts from client yarn-site.xml)
> for example, following setup will allow the application master to fail 20
> times.
> * spark.yarn.am.attemptFailuresValidityInterval=1s
> * spark.yarn.maxAppAttempts=20
> * yarn client: yarn.resourcemanager.am.max-attempts=20
> * yarn resource manager: yarn.resourcemanager.am.max-attempts=3
> And after checking the source code, I found in source file
> ApplicationMaster.scala
> https://github.com/apache/spark/blob/master/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala#L293
> there's a ShutdownHook that checks the attempt id against the maxAppAttempts,
> if attempt id >= maxAppAttempts, it will try to unregister the application
> and the application will finish.
> is this a expected design or a bug?
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