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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-710) Add to ser/deser methods to RecordFactory
Date Wed, 22 May 2013 18:52:21 GMT

    [ https://issues.apache.org/jira/browse/YARN-710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13664411#comment-13664411
] 

Alejandro Abdelnur commented on YARN-710:
-----------------------------------------

So, it seems what we should do is:

* Define a public tag interface that indicates that a record can be serialized
* Add that the tag interface to all records we consider may need to be serialized by apps
* Add public util class to ser/deser tagged record classes that delegates the RecordFactory

Does this sound right?

                
> Add to ser/deser methods to RecordFactory
> -----------------------------------------
>
>                 Key: YARN-710
>                 URL: https://issues.apache.org/jira/browse/YARN-710
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: api
>    Affects Versions: 2.0.4-alpha
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>         Attachments: YARN-710.patch
>
>
> I order to do things like AMs failover and checkpointing I need to serialize app IDs,
app attempt IDs, containers and/or IDs,  resource requests, etc.
> Because we are wrapping/hiding the PB implementation from the APIs, we are hiding the
built in PB ser/deser capabilities.

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