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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-675) In YarnClient, pull AM logs on AM container failure
Date Wed, 03 Jul 2013 22:39:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13699538#comment-13699538
] 

Zhijie Shen commented on YARN-675:
----------------------------------

It's feasible to pass ContainerId through ApplicationReport, but I'm a bit conservative of
doing API change at this point, specially when the ContainerId is added only for pulling the
log. How do you think?

[~sandyr], BTW, the URL to the container log is constructed in AppInfo/AppAttemptInfo somewhat
differently from what is done in YARN-649.

{code}
            String url = join(HttpConfig.getSchemePrefix(),
                masterContainer.getNodeHttpAddress(),
                "/node", "/containerlogs/",
                ConverterUtils.toString(masterContainer.getId()),
                "/", app.getUser());
{code}

user is part of the url. If this is adopted, there's no need to get the user through request.getRemoteUser()
                
> In YarnClient, pull AM logs on AM container failure
> ---------------------------------------------------
>
>                 Key: YARN-675
>                 URL: https://issues.apache.org/jira/browse/YARN-675
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: client
>    Affects Versions: 2.0.4-alpha
>            Reporter: Sandy Ryza
>            Assignee: Zhijie Shen
>
> Similar to MAPREDUCE-4362, when an AM container fails, it would be helpful to pull its
logs from the NM to the client so that they can be displayed immediately to the user.

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