Junping Du resolved YARN-2445.
    Resolution: Won't Fix

Agree with [~billie.rinaldi]'s comments above, this is expected behavior.

> ATS does not reflect changes to uploaded TimelineEntity
> -------------------------------------------------------
>                 Key: YARN-2445
>                 URL: https://issues.apache.org/jira/browse/YARN-2445
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: timelineserver
>            Reporter: Marcelo Vanzin
>            Priority: Minor
>         Attachments: ats2.java
> If you make a change to the TimelineEntity and send it to the ATS, that 
> change is not reflected in the stored data.
> For example, in the attached code, an existing primary filter is removed and 
> a new one is added. When you retrieve the entity from the ATS, it only 
> contains the old value:
> {noformat}
> {"entities":[{"events":[],"entitytype":"test","entity":"testid-ad5380c0-090e-4982-8da8-21676fe4e9f4","starttime":1408746026958,"relatedentities":{},"primaryfilters":{"oldprop":["val"]},"otherinfo":{}}]}
> {noformat}
> Perhaps this is what the design wanted, but from an API user standpoint, it's 
> really confusing, since to upload events I have to upload the entity itself, 
> and the changes are not reflected.

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