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From "Vrushali C (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6733) Add table for storing sub-application entities
Date Thu, 20 Jul 2017 05:12:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16094183#comment-16094183
] 

Vrushali C commented on YARN-6733:
----------------------------------

bq. Btw, as discussion made in YARN-4455 regarding timestamp qualifier, I also see that subapplication
table also storing timestamp multiplied by qualifier. Any comment on this? Or did I miss any
concession taken for this?

The sub app table will store metrics just like entity or application table do. No change in
behavior intended. Is it that you see this table storing metrics differently in the patch..


> 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
>         Attachments: IMG_7040.JPG, YARN-6733-YARN-5355.001.patch, YARN-6733-YARN-5355.002.patch,
YARN-6733-YARN-5355.003.patch, YARN-6733-YARN-5355.004.patch, YARN-6733-YARN-5355.005.patch
>
>
> 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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