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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6314) Potential infinite redirection on YARN log redirection web service
Date Tue, 14 Mar 2017 01:40:41 GMT

    [ https://issues.apache.org/jira/browse/YARN-6314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15923384#comment-15923384

Junping Du commented on YARN-6314:

+1. Committing it in.

> Potential infinite redirection on YARN log redirection web service
> ------------------------------------------------------------------
>                 Key: YARN-6314
>                 URL: https://issues.apache.org/jira/browse/YARN-6314
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>         Attachments: YARN-6314.1.patch, YARN-6314.2.patch
> In YARN-6113, we have added a re-direct NM web service to get container logs which could
cause the potential infinite redirection.
> It can happens when:
> * Call AHS web service to get a running/finished AM container log for a running application.
> * AHS web service would re-direct the request the specific NM given the application is
still running. And the NM would handle the request
> * If the log file we requested has already been aggregated and deleted from NM, the NM
would re-direct the request back to AHS.
> In this case, we would do step 2 and step 3 infinite times.

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