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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2244) FairScheduler missing handling of containers for unknown application attempts
Date Wed, 16 Jul 2014 22:51:06 GMT

    [ https://issues.apache.org/jira/browse/YARN-2244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14064285#comment-14064285
] 

Karthik Kambatla commented on YARN-2244:
----------------------------------------

bq. Right now the containerLaunchedOnNode code is same as Capacity and Fifo with what it does.
If we want to unify the code across the schedulers, i would prefer leave it like this and
then get rid of all three implementations and have a single containerLaunchedOnNode in AbstractYarnScheduler
instead.

I am not sure if we should punt on re-using existing code to match other schedulers. I am
open to merging containerLaunchedOnNode across schedulers into AbstractYarnScheduler. That
is definitely a better solution for this JIRA as well. 

> FairScheduler missing handling of containers for unknown application attempts 
> ------------------------------------------------------------------------------
>
>                 Key: YARN-2244
>                 URL: https://issues.apache.org/jira/browse/YARN-2244
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>            Reporter: Anubhav Dhoot
>            Assignee: Anubhav Dhoot
>            Priority: Critical
>         Attachments: YARN-2224.patch, YARN-2244.001.patch, YARN-2244.002.patch
>
>
> We are missing changes in patch MAPREDUCE-3596 in FairScheduler. Among other fixes that
were common across schedulers, there were some scheduler specific fixes added to handle containers
for unknown application attempts. Without these fair scheduler simply logs that an unknown
container was found and continues to let it run. 



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