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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4224) Support fetching entities by UID and change the REST interface to conform to current REST APIs' in YARN
Date Tue, 05 Jan 2016 17:13:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-4224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15083381#comment-15083381
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Varun Saxena commented on YARN-4224:
------------------------------------

bq. One quick thing is about TimelineReaderContext. This class appears to have a lot of duplicated
logic as TimelineCollectorContext, and serves as a similar role. Do we want to reorganize
them or consolidate them?
I see. For TimelineReaderContext we would need entity type and entity id in addition to fields
in TimelineCollectorContext. Maybe we can rename TimelineCollectorContext to TimelineContext
class. And extend this class as TimelineReaderContext containing the 2 extra fields.

bq. In the original design, /flows will return a list of flows with latest activities on the
cluster. Shall we keep this endpoint (as I noticed, /flows endpoint is not touched in this
patch), or attach it to somewhere else in our hierarchy? 
Didn't quite get your question.
/flows endpoint is for querying active flows with default cluster id. And /clusters/\{clusterid\}/flows/
endpoint is for querying flows for specific cluster id.
Didn't keep a UID related endpoint for flows because cluster id by itself is a UID.

> Support fetching entities by UID and change the REST interface to conform to current
REST APIs' in YARN
> -------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-4224
>                 URL: https://issues.apache.org/jira/browse/YARN-4224
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Varun Saxena
>            Assignee: Varun Saxena
>              Labels: yarn-2928-1st-milestone
>         Attachments: YARN-4224-YARN-2928.01.patch, YARN-4224-feature-YARN-2928.wip.02.patch,
YARN-4224-feature-YARN-2928.wip.03.patch
>
>




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