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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6069) CORS support in timeline v2
Date Wed, 22 Feb 2017 05:49:44 GMT

    [ https://issues.apache.org/jira/browse/YARN-6069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15877530#comment-15877530
] 

Rohith Sharma K S commented on YARN-6069:
-----------------------------------------

[~gtCarrera9] Basically CORS is required when there is different domains are accessing REST
URI. As of today, collectors are started as auxiliary service in NM. And TimelineClient is
only application-master which will be running on Hadoop cluster. Hadoop cluster will be installed
under same domain with which TimelineCollectors do NOT require CORS support to publish entities.
OTOH, when we support offline collectors then CORS is mandatorily required. 

> CORS support in timeline v2
> ---------------------------
>
>                 Key: YARN-6069
>                 URL: https://issues.apache.org/jira/browse/YARN-6069
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelinereader
>            Reporter: Sreenath Somarajapuram
>            Assignee: Rohith Sharma K S
>         Attachments: YARN-6069-YARN-5355.0001.patch, YARN-6069-YARN-5355.0002.patch,
YARN-6069-YARN-5355.0003.patch, YARN-6069-YARN-5355.0004.patch
>
>
> By default the browser prevents accessing resources from multiple domains. In most cases
the UIs would be loaded form a domain different from that of  timeline server. Hence without
CORS support, it would be difficult for the UIs to load data from timeline v2.
> YARN-2277 must provide more info on the implementation.



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