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https://issues.apache.org/jira/browse/YARN-6733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16061175#comment-16061175
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Haibo Chen commented on YARN-6733:
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I have a few questions on the Tez use case.
1) Is the sub_application going to have similar schema as ApplicationTable?
2) Are nodes in a Tez DAG all YARN applications? If so, can't Tez write to
ApplicationTable with the doAs user?
> Add table for storing sub-application entities
> ----------------------------------------------
>
> Key: YARN-6733
> URL: https://issues.apache.org/jira/browse/YARN-6733
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Vrushali C
> Assignee: Vrushali C
>
> After a discussion with Tez folks, we have been thinking over introducing a
> table to store sub-application information.
> For example, if a Tez session runs for a certain period as User X and runs a
> few AMs. These AMs accept DAGs from other users. Tez will execute these dags
> with a doAs user. ATSv2 should store this information in a new table perhaps
> called as "sub_application" table.
> This jira tracks the code changes needed for table schema creation.
> I will file other jiras for writing to that table, updating the user name
> fields to include sub-application user etc.
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