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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3551) Consolidate data model change according to the backend implementation
Date Tue, 28 Apr 2015 00:02:56 GMT

     [ https://issues.apache.org/jira/browse/YARN-3551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhijie Shen updated YARN-3551:
------------------------------
    Summary: Consolidate data model change according to the backend implementation  (was:
Consolidate data model change according the backend implementation)

> 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
>
> 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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