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https://issues.apache.org/jira/browse/YARN-6153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15864677#comment-15864677
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Jian He commented on YARN-6153:
-------------------------------

[~kyungwan nam], thanks for the patch.  Minor suggestion to the code:
In RMAppImpl, we also have below code to detect whether a failure should be 
counted towards the max-retry. I think we can move the logic of checking the 
validity interval inside shouldCountTowardsMaxAttemptRetry itself, so that this 
method could be used by both RMAppImpl and RMAttemptImpl 
{code}
      if (attempt.shouldCountTowardsMaxAttemptRetry()) {
        if (this.attemptFailuresValidityInterval <= 0
            || (attempt.getFinishTime() > endTime
                - this.attemptFailuresValidityInterval)) {
          completedAttempts++;
        }
      }
{code}

> keepContainer does not work when AM retry window is set
> -------------------------------------------------------
>
>                 Key: YARN-6153
>                 URL: https://issues.apache.org/jira/browse/YARN-6153
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.7.1
>            Reporter: kyungwan nam
>         Attachments: YARN-6153.001.patch
>
>
> yarn.resourcemanager.am.max-attempts has been configured to 2 in my cluster.
> I submitted a YARN application (slider app) that keepContainers=true, 
> attemptFailuresValidityInterval=300000.
> it did work properly when AM was failed firstly.
> all containers launched by previous AM were resynced with new AM (attempt2) 
> without killing containers.
> after 10 minutes, I thought AM failure count was reset by 
> attemptFailuresValidityInterval (5 minutes).
> but, all containers were killed when AM was failed secondly. (new AM attempt3 
> was launched properly)



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