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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-947) Defining the history data classes for the implementation of the reading/writing interface
Date Thu, 24 Oct 2013 04:46:46 GMT

    [ https://issues.apache.org/jira/browse/YARN-947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13803743#comment-13803743
] 

Zhijie Shen commented on YARN-947:
----------------------------------

Thanks for the review. Will file the follow up tickets. As it's ready to go. I'll update YARN-956
and YARN-975 accordingly

> Defining the history data classes for the implementation of the reading/writing interface
> -----------------------------------------------------------------------------------------
>
>                 Key: YARN-947
>                 URL: https://issues.apache.org/jira/browse/YARN-947
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>             Fix For: YARN-321
>
>         Attachments: YARN-947.1.patch, YARN-947.2.patch, YARN-947.3.patch, YARN-947.4.patch,
YARN-947.5.patch, YARN-947.6.patch, YARN-947.8.patch
>
>
> We need to define the history data classes have the exact fields to be stored. Therefore,
all the implementations don't need to have the duplicate logic to exact the required information
from RMApp, RMAppAttempt and RMContainer.
> We use protobuf to define these classes, such that they can be ser/des to/from bytes,
which are easier for persistence.



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