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https://issues.apache.org/jira/browse/YARN-3551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhijie Shen updated YARN-3551:
------------------------------
    Attachment: YARN-3551-YARN-2928.5.patch

Upload a new patch to address Sangjin's comment.


I took a look at the test report. Most failures were caused by 
"NoClassDefFoundError". However, the missing class should have been presented. 
It's likely that the branch test's environment has something wrong. 

> Consolidate data model change according to the backend implementation
> ---------------------------------------------------------------------
>
>                 Key: YARN-3551
>                 URL: https://issues.apache.org/jira/browse/YARN-3551
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>         Attachments: YARN-3551-YARN-2928.4.patch, 
> YARN-3551-YARN-2928.5.patch, YARN-3551.1.patch, YARN-3551.2.patch, 
> YARN-3551.3.patch
>
>
> Based on the comments on 
> [YARN-3134|https://issues.apache.org/jira/browse/YARN-3134?focusedCommentId=14512080&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14512080]
>  and 
> [YARN-3411|https://issues.apache.org/jira/browse/YARN-3411?focusedCommentId=14512098&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14512098],
>  we need to change the data model to restrict the data type of 
> info/config/metric section.
> 1. Info: the value could be all kinds object that is able to be 
> serialized/deserialized by jackson.
> 2. Config: the value will always be assumed as String.
> 3. Metric: single data or time series value have to be number for aggregation.
> Other than that, info/start time/finish time of metric seem not to be 
> necessary for storage. They should be removed.



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