[jira] [Assigned] (YARN-6767) Timeline client won't be able to write when TimelineCollector is not up yet, or NM is down

["Vrushali C (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-6767?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vrushali C reassigned YARN-6767:
--------------------------------

    Assignee: Vrushali C

> Timeline client won't be able to write when TimelineCollector is not up yet, or NM is down
> ------------------------------------------------------------------------------------------
>
>                 Key: YARN-6767
>                 URL: https://issues.apache.org/jira/browse/YARN-6767
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineclient
>    Affects Versions: 3.0.0-alpha4
>            Reporter: Haibo Chen
>            Assignee: Vrushali C
>            Priority: Major
>
> As discussed in the call, when an application first starts to run, its corresponding TimelineCollector instance may not be up yet, or if the TimelineCollector goes down when node manager dies (TimelineCollector now runs as part of NM auxiliary services), the timeline client
> will not able to write entities. We need to address or mitigate the issue if possible, or at least call it out.



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