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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3047) [Data Serving] Set up ATS reader with basic request serving structure and lifecycle
Date Tue, 30 Jun 2015 11:09:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-3047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14608128#comment-14608128

Varun Saxena commented on YARN-3047:

bq. 1. We should be able to reuse "TimelineAbout".
Ok. Didnt notice this one.

bq. 3. Not sure if we have already clarified it or not, but I remember we have some offline
discussion on where to trigger the HBase coprocessor 
I dont know about this either. Can you point to the JIRA this discussion took place on ? And
if there is any conclusion on this.

bq. 2. I didn't see the web app module in the patch. Do we consider install the web UI on
the reader instance together with web services?
We have to do it with webservices. I was thinking of handling this part of another JIRA. Because
this is just an initial JIRA and we have already started the webserver here. Current webapp
implementations in YARN use Guice which as per new implementation of starting webserver we
do not want(because of issue which was fixed in YARN-3087). So I will have to explore a bit
on that. Hence, thought of raising a new JIRA once I work on it. I do not think we are planning
to launch the reader from another daemon unlike node collector but if we do it ever, we can't
use Guice from what I could gather from discussion on YARN-3087

> [Data Serving] Set up ATS reader with basic request serving structure and lifecycle
> -----------------------------------------------------------------------------------
>                 Key: YARN-3047
>                 URL: https://issues.apache.org/jira/browse/YARN-3047
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Sangjin Lee
>            Assignee: Varun Saxena
>              Labels: BB2015-05-TBR
>         Attachments: Timeline_Reader(draft).pdf, YARN-3047-YARN-2928.08.patch, YARN-3047-YARN-2928.09.patch,
YARN-3047.001.patch, YARN-3047.003.patch, YARN-3047.005.patch, YARN-3047.006.patch, YARN-3047.007.patch,
YARN-3047.02.patch, YARN-3047.04.patch
> Per design in YARN-2938, set up the ATS reader as a service and implement the basic structure
as a service. It includes lifecycle management, request serving, and so on.

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