[jira] [Commented] (YARN-2074) Preemption of AM containers shouldn't count towards AM failures

[Mayank Bansal (JIRA)]

    [ 
https://issues.apache.org/jira/browse/YARN-2074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14006459#comment-14006459
 ] 

Mayank Bansal commented on YARN-2074:
-------------------------------------

Thanks [~jianhe] for the patch. Overall looks good.
some nits

{code}
  maxAppAttempts <= attempts.size()
{code}
Can we use this?
{code}
maxAppAttempts == getAttemptFailureCount()
{code}

{code}
  public boolean isPreempted() {
     return getDiagnostics().contains(SchedulerUtils.PREEMPTED_CONTAINER);
   }
{code}

I think we need to compare the exit status  (-102) instead of relying on string 
message.


> Preemption of AM containers shouldn't count towards AM failures
> ---------------------------------------------------------------
>
>                 Key: YARN-2074
>                 URL: https://issues.apache.org/jira/browse/YARN-2074
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Jian He
>         Attachments: YARN-2074.1.patch, YARN-2074.2.patch
>
>
> One orthogonal concern with issues like YARN-2055 and YARN-2022 is that AM 
> containers getting preempted shouldn't count towards AM failures and thus 
> shouldn't eventually fail applications.
> We should explicitly handle AM container preemption/kill as a separate issue 
> and not count it towards the limit on AM failures.



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