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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-867) Isolation of failures in aux services
Date Wed, 11 Sep 2013 05:44:55 GMT

    [ https://issues.apache.org/jira/browse/YARN-867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13764007#comment-13764007
] 

Xuan Gong commented on YARN-867:
--------------------------------

bq. I think we should handle AuxServicesEventType.APPLICATION_INIT and the stop event in Application
and not container. That should simplify THIS patch a lot.

I did not see the benefits. 
So, when there is any auxServices fail in a container, we need to fail this container. If
we handle the AuxServicesEventType in Application, eventually, from Application, we need to
inform that certain container(not all the containers) to exit_with_failure. It will go to
the same process as that we handle the it from container directly. If there is no difference,
why do we increase the traffic (more events) for application ? 
                
> Isolation of failures in aux services 
> --------------------------------------
>
>                 Key: YARN-867
>                 URL: https://issues.apache.org/jira/browse/YARN-867
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>            Reporter: Hitesh Shah
>            Assignee: Xuan Gong
>            Priority: Critical
>         Attachments: YARN-867.1.sampleCode.patch, YARN-867.3.patch, YARN-867.sampleCode.2.patch
>
>
> Today, a malicious application can bring down the NM by sending bad data to a service.
For example, sending data to the ShuffleService such that it results any non-IOException will
cause the NM's async dispatcher to exit as the service's INIT APP event is not handled properly.


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