[jira] [Updated] (YARN-6375) App level aggregation should not consider metric values reported in the previous aggregation cycle

["Varun Saxena (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-6375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Varun Saxena updated YARN-6375:
-------------------------------
    Attachment: YARN-6375-YARN-5355.02.patch

> App level aggregation should not consider metric values reported in the previous aggregation cycle
> --------------------------------------------------------------------------------------------------
>
>                 Key: YARN-6375
>                 URL: https://issues.apache.org/jira/browse/YARN-6375
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Varun Saxena
>            Assignee: Varun Saxena
>         Attachments: YARN-6375-YARN-5355.01.patch, YARN-6375-YARN-5355.02.patch
>
>
> Currently app level aggregation is done every 15 seconds.
> And we consider last reported metric value for each entity belonging to an app for aggregation.
> We however merely update the corresponding metric values for the entity on put. We never remove the entries.
> But it is possible that multiple entities finish during lifetime of an application. We however continue to consider them till the end.
> We should however not consider metric values of entities unless reported within the 15 second period.
> Consider containers. For a long running app, several containers would start and end at various times during the lifetime of an app.
> To consider metrics for all the containers throughout the lifetime of app, hence wont be correct.



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