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Date: Wed, 7 Sep 2016 12:51:20 +0000 (UTC)
From: "Rohith Sharma K S (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.13001293.1472562035000.507302.1473252680656@Atlassian.JIRA>
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References: <JIRA.13001293.1472562035000@Atlassian.JIRA> <JIRA.13001293.1472562035465@arcas>
Subject: [jira] [Commented] (YARN-5585) [Atsv2] Add a new filter fromId in
 REST endpoints
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archived-at: Wed, 07 Sep 2016 12:51:22 -0000


    [ https://issues.apache.org/jira/browse/YARN-5585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15470538#comment-15470538 ] 

Rohith Sharma K S commented on YARN-5585:
-----------------------------------------

bq. Can you tell me the use case ? Listing all DAGs' or listing DAGs' within an app ? Or something else ? Typically how many DAGs' can there be per app ?
Basic use case is to achieve pagination nevertheless DAG or containers or any other user entities. Currently limit is 100 for any entities to retrieve. Say if number of entities is 200. Then REST call retrieves 100 entities. And how to retrieve 100 to 200 entities?

> [Atsv2] Add a new filter fromId in REST endpoints
> -------------------------------------------------
>
>                 Key: YARN-5585
>                 URL: https://issues.apache.org/jira/browse/YARN-5585
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelinereader
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>         Attachments: YARN-5585.v0.patch
>
>
> TimelineReader REST API's provides lot of filters to retrieve the applications. Along with those, it would be good to add new filter i.e fromId so that entities can be retrieved after the fromId. 
> Example : If applications are stored database, app-1 app-2 ... app-10.
> *getApps?limit=5* gives app-1 to app-10. But to retrieve next 5 apps, it is difficult.
> So proposal is to have fromId in the filter like *getApps?limit=5&&fromId=app-5* which gives list of apps from app-6 to app-10. 
> This is very useful for pagination in web UI.


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