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https://issues.apache.org/jira/browse/YARN-3041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14315842#comment-14315842
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Robert Kanter commented on YARN-3041:
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An event in the current ATS is state transitions. For example, all of the
stuff that goes into a jhist file (JOB_FAILED, JOB_INFO_CHANGED, etc). See
MAPREDUCE-5933 where I updated the MR AM to post events to the ATS for specific
examples.
The difficulty in explicitly defining the states is that these are AM states,
so they are framework-specific; while the ATS is YARN, so we can't do that.
e.g. The ATS shouldn't know what a MAP_ATTEMPT_STARTED event is.
> create the ATS entity/event API
> -------------------------------
>
> Key: YARN-3041
> URL: https://issues.apache.org/jira/browse/YARN-3041
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Sangjin Lee
> Assignee: Robert Kanter
> Attachments: YARN-3041.preliminary.001.patch
>
>
> Per design in YARN-2928, create the ATS entity and events API.
> Also, as part of this JIRA, create YARN system entities (e.g. cluster, user,
> flow, flow run, YARN app, ...).
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