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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8834) Provide Java client for fetching Yarn specific entities from TimelineReader
Date Wed, 10 Oct 2018 08:47:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-8834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16644647#comment-16644647
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Rohith Sharma K S commented on YARN-8834:
-----------------------------------------

Hi [~abmodi] I just realized that patch uses below code which is meant for http address. 
Instead of 
{code}
String timelineReaderWebAppAddress = conf.get(
	        YarnConfiguration.TIMELINE_SERVICE_READER_WEBAPP_ADDRESS,
	        YarnConfiguration.DEFAULT_TIMELINE_SERVICE_READER_WEBAPP_ADDRESS);
{code}  
we should use WebAppUtils.getTimelineReaderWebAppURLWithoutScheme(conf); This gives right
web address. 

> Provide Java client for fetching Yarn specific entities from TimelineReader
> ---------------------------------------------------------------------------
>
>                 Key: YARN-8834
>                 URL: https://issues.apache.org/jira/browse/YARN-8834
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelinereader
>            Reporter: Rohith Sharma K S
>            Assignee: Abhishek Modi
>            Priority: Critical
>         Attachments: YARN-8834.001.patch, YARN-8834.002.patch, YARN-8834.003.patch, YARN-8834.004.patch,
YARN-8834.005.patch
>
>
> While reviewing YARN-8303, we felt that it is necessary to provide TimelineReaderClient
which wraps all the REST calls in it so that user can just provide application or container
ids along with filters.Currently fetching entities from TimelineReader is only via REST call
or somebody need to write java client get entities.
> It is good to provide TimelineReaderClient which fetch entities from TimelineReaderServer.
This will be more useful.



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