[jira] [Commented] (TEZ-354) Allow updating of payload during dag construction

["Siddharth Seth (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TEZ-354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13739183#comment-13739183 ] 

Siddharth Seth commented on TEZ-354:
------------------------------------

We should change {Vertex,Input,Output}Descriptor to not accept uesr payload either. i.e. either set in the constructor, or set via a setter. Since this isn't necessarily a mandatory field, setters seem ok.
                
> Allow updating of payload during dag construction
> -------------------------------------------------
>
>                 Key: TEZ-354
>                 URL: https://issues.apache.org/jira/browse/TEZ-354
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>         Attachments: TEZ-354.1.patch
>
>
> Since I need to call:
> MultiStageMRConfToTezTranslator.translateVertexConfToTez(vertexConf, predecessorConf);
> for each edge to translate the graph into a dag, it would be really helpful if I could separate creation of the vertex from setting the final payload. That way I don't have to traverse the graph multiple times.
> I believe that payload is only used once submit is called, so this shouldn't be much of a problem.

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