[jira] [Comment Edited] (TEZ-576) Allow inputs in different vertices to have the same name

["Bikas Saha (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TEZ-576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13803927#comment-13803927 ] 

Bikas Saha edited comment on TEZ-576 at 10/24/13 6:59 AM:
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The patch seems to remove the check that an input/output name and a vertex name dont collide. So a vertex in the graph and some other input/output in that graph could have the same name. That was a valuable check and removing it would make it incompatible in the future for us to model inputs/outputs as vertices internally if needed.


was (Author: bikassaha):
The patch seems to remove the check that an input/output name and a vertex name dont collide. So a vertex in the graph and some other input/output in that graph could have the same name. That was a valuable check and removing it would make it incompatible in the future for us to model inputs as vertices internally.

> Allow inputs in different vertices to have the same name
> --------------------------------------------------------
>
>                 Key: TEZ-576
>                 URL: https://issues.apache.org/jira/browse/TEZ-576
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>             Fix For: 0.2.0
>
>         Attachments: TEZ-576.1.patch, TEZ-576.2.patch
>
>
> In order to avoid sending another mapping (alias -> input) to tasks in hive, it'd be nice to allow different vertices to have duplicate input/output names.
> Tez seems to handle this already, it's just that the DAG.verify is overprotective in this case.



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