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https://issues.apache.org/jira/browse/YARN-1727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14044003#comment-14044003
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Steve Loughran commented on YARN-1727:
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Yes, this can and should be appilcation timeline service eventing

> provide (async) application lifecycle events to management tools
> ----------------------------------------------------------------
>
>                 Key: YARN-1727
>                 URL: https://issues.apache.org/jira/browse/YARN-1727
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.2.0
>            Reporter: Steve Loughran
>
> Management tools need to monitor long-lived applications. While the 
> {{AM<->Management System}} protocol is a matter for them, the management 
> tooling will need to know about async events happening in YARN
> # application submitted
> # AM started
> # AM failed
> # AM restarted
> # AM finished
> This could be done by pushing events somewhere, or supporting a pollable 
> history mechanism



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