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Date: Thu, 6 Oct 2016 16:17:20 +0000 (UTC)
From: "Varun Saxena (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.12999983.1472123234000.754408.1475770640653@Atlassian.JIRA>
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References: <JIRA.12999983.1472123234000@Atlassian.JIRA> <JIRA.12999983.1472123234982@arcas>
Subject: [jira] [Commented] (YARN-5561) [Atsv2] : Support for ability to
 retrieve apps/app-attempt/containers and entities via REST
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archived-at: Thu, 06 Oct 2016 16:17:22 -0000


    [ https://issues.apache.org/jira/browse/YARN-5561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15552370#comment-15552370 ] 

Varun Saxena commented on YARN-5561:
------------------------------------

Thanks [~rohithsharma] for the patch.
# We do not store configurations at container and app attempt level. So we can leave out query params associated with it,
# Similarly no metrics are stored at app attempt level. Same goes for relationships. We can add them when we support them, if not for anything but just to reduce lines in code and documentation :)
# Javadoc will have to be updated I think otherwise we will get a -1 in QA report. Yes this will unnecessarily increase code size but then there is no other way out.
# Update tests for app attempts too ?

> [Atsv2] : Support for ability to retrieve apps/app-attempt/containers and entities via REST
> -------------------------------------------------------------------------------------------
>
>                 Key: YARN-5561
>                 URL: https://issues.apache.org/jira/browse/YARN-5561
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelinereader
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>         Attachments: 0001-YARN-5561.YARN-5355.patch, YARN-5561.02.patch, YARN-5561.patch, YARN-5561.v0.patch
>
>
> ATSv2 model lacks retrieval of {{list-of-all-apps}}, {{list-of-all-app-attempts}} and {{list-of-all-containers-per-attempt}} via REST API's. And also it is required to know about all the entities in an applications.
> It is pretty much highly required these URLs for Web  UI.
> New REST URL would be 
> # GET {{/ws/v2/timeline/apps}}
> # GET {{/ws/v2/timeline/apps/\{app-id\}/appattempts}}.
> # GET {{/ws/v2/timeline/apps/\{app-id\}/appattempts/\{attempt-id\}/containers}}
> # GET {{/ws/v2/timeline/apps/\{app id\}/entities}} should display list of entities that can be queried.  


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