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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4767) Network issues can cause persistent RM UI outage
Date Mon, 03 Oct 2016 01:22:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-4767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15541280#comment-15541280
] 

Karthik Kambatla commented on YARN-4767:
----------------------------------------

Apologies for not committing it last week before I went away. Now, the patch does not apply
cleanly. [~templedf] - could you please upload another patch. Will try my best to commit it
soon this time around. 

> Network issues can cause persistent RM UI outage
> ------------------------------------------------
>
>                 Key: YARN-4767
>                 URL: https://issues.apache.org/jira/browse/YARN-4767
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: webapp
>    Affects Versions: 2.7.2
>            Reporter: Daniel Templeton
>            Assignee: Daniel Templeton
>            Priority: Critical
>         Attachments: YARN-4767.001.patch, YARN-4767.002.patch, YARN-4767.003.patch, YARN-4767.004.patch,
YARN-4767.005.patch, YARN-4767.006.patch, YARN-4767.007.patch, YARN-4767.008.patch, YARN-4767.009.patch,
YARN-4767.010.patch
>
>
> If a network issue causes an AM web app to resolve the RM proxy's address to something
other than what's listed in the allowed proxies list, the AmIpFilter will 302 redirect the
RM proxy's request back to the RM proxy.  The RM proxy will then consume all available handler
threads connecting to itself over and over, resulting in an outage of the web UI.



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