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https://issues.apache.org/jira/browse/YARN-3488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15476453#comment-15476453
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Varun Saxena commented on YARN-3488:
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[~djp], can I take this up ?
> AM get timeline service info from RM rather than Application specific
> configuration.
> ------------------------------------------------------------------------------------
>
> Key: YARN-3488
> URL: https://issues.apache.org/jira/browse/YARN-3488
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: applications
> Reporter: Junping Du
> Assignee: Junping Du
> Labels: YARN-5355
>
> Since v1 timeline service, we have MR configuration to enable/disable putting
> history event to timeline service. For today's v2 timeline service ongoing
> effort, currently we have different methods/structures between v1 and v2 for
> consuming TimelineClient, so application have to be aware of which version
> timeline service get used there.
> There are basically two options here:
> First option is as current way in DistributedShell or MR to let application
> has specific configuration to point out that if enabling ATS and which
> version could be, like: MRJobConfig.MAPREDUCE_JOB_EMIT_TIMELINE_DATA, etc.
> The other option is to let application to figure out timeline related info
> from YARN/RM, it can be done through registerApplicationMaster() in
> ApplicationMasterProtocol with return value for service "off", "v1_on", or
> "v2_on".
> We prefer the latter option because application owner doesn't have to aware
> RM/YARN infrastructure details. Please note that we should keep compatible
> (consistent behavior with the same setting) with released configurations.
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