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From "Li Lu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5585) [Atsv2] Add a new filter fromId in REST endpoints
Date Wed, 31 Aug 2016 20:48:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15453314#comment-15453314
] 

Li Lu commented on YARN-5585:
-----------------------------

If there are two flow runs running, I believe the problem is how to define the meaning of
"fromId". This appears to be something requires working with "aggregated" data on one flow,
instead of directly working on data with hierarchical order. IIUC the ultimate goal in this
JIRA is to support pagination, so I think it might be helpful to fully understand important
use cases here. 

> [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
>
> 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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