Zhijie Shen commented on YARN-3034:

Let me elaborate my previous comments. In YARN-3040, I'm working on the issue 
to make the context info available in app-level collector, such that when we 
use timeline client to put entity inside AM and NM, the entity will be 
automatically associated to this context.

This jiar is to create RM collector. To achieve the similar thing, RM collector 
should have the context info available too. RM has all this information 
available (should be inside RMApp), such that RM collector needs to make sure 
this information is available in some when when putting an entity. I'm okay if 
you want to exclude this work here, and I'll file a separate jira for it. 
However, I want to exclude it from YARN-3040 to prevent the patch there growing 
even bigger. That one is required to unblock the framework to write their 
specific data, and I wish it could get in asap.

> [Collector wireup] Implement RM starting its timeline collector
> ---------------------------------------------------------------
>                 Key: YARN-3034
>                 URL: https://issues.apache.org/jira/browse/YARN-3034
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Sangjin Lee
>            Assignee: Naganarasimha G R
>         Attachments: YARN-3034-20150312-1.patch, YARN-3034.20150205-1.patch, 
> YARN-3034.20150316-1.patch, YARN-3034.20150318-1.patch, 
> YARN-3034.20150320-1.patch
> Per design in YARN-2928, implement resource managers starting their own ATS 
> writers.

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