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From "Chang Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-4428) Redirect RM page to AHS page when AHS turned on and RM page is not avaialable
Date Tue, 19 Jan 2016 17:34:39 GMT

     [ https://issues.apache.org/jira/browse/YARN-4428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chang Li updated YARN-4428:
    Attachment: YARN-4428.4.patch

Thanks [~jlowe] for review and providing good suggestions! updated .4 patch to also support
redirect for appattempt and container. Have successfully manually test them

> Redirect RM page to AHS page when AHS turned on and RM page is not avaialable
> -----------------------------------------------------------------------------
>                 Key: YARN-4428
>                 URL: https://issues.apache.org/jira/browse/YARN-4428
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Chang Li
>            Assignee: Chang Li
>         Attachments: YARN-4428.1.2.patch, YARN-4428.1.patch, YARN-4428.2.2.patch, YARN-4428.2.patch,
YARN-4428.3.patch, YARN-4428.3.patch, YARN-4428.4.patch
> When AHS is turned on, if we can't view application in RM page, RM page should redirect
us to AHS page. For example, when you go to cluster/app/application_1, if RM no longer remember
the application, we will simply get "Failed to read the application application_1", but it
will be good for RM ui to smartly try to redirect to AHS ui /applicationhistory/app/application_1
to see if it's there. The redirect usage already exist for logs in nodemanager UI.
> Also, when AHS is enabled, WebAppProxyServlet should redirect to AHS page on fall back
of RM not remembering the app. YARN-3975 tried to do this only when original tracking url
is not set. But there are many cases, such as when app failed at launch, original tracking
url will be set to point to RM page, so redirect to AHS page won't work.

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