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From "Sangjin Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5561) [Atsv2] : Support for ability to retrieve apps/app-attempt/containers and entities via REST
Date Fri, 23 Sep 2016 23:40:21 GMT

    [ https://issues.apache.org/jira/browse/YARN-5561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15517898#comment-15517898
] 

Sangjin Lee commented on YARN-5561:
-----------------------------------

Sorry it took me a while to get to this.

I'm generally fine with the newly proposed REST end points (as they seem to be more like short-handed
API for existing ones).

Regarding the need for listing all apps (in a cluster), I agree with others that it would
be quite problematic. If I read this thread correctly, Rohith, I think you're saying you are
OK without having that API since we have a query that returns all apps for a flow (and one
that returns all flow activities).

> [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: 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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