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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-947) Defining the history data classes for the implementation of the reading/writing interface
Date Tue, 23 Jul 2013 04:10:49 GMT

     [ https://issues.apache.org/jira/browse/YARN-947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhijie Shen updated YARN-947:
-----------------------------

    Attachment: YARN-947.1.patch

Created a patch, where 3 protobuf classes are defined. The classes contain the exact fields
to be persist.

Please check whether the included fields make sense, and whether some more fields should be
included.
                
> 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
>         Attachments: YARN-947.1.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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