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https://issues.apache.org/jira/browse/TEZ-749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13877005#comment-13877005
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Bikas Saha commented on TEZ-749:
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When vertices are added to the DAG then we should keep them in an ordered data
structure and then maintain that order through the DAG plan
serialization-deserialization.
> Maintain order of vertices as specified by the user
> ---------------------------------------------------
>
> Key: TEZ-749
> URL: https://issues.apache.org/jira/browse/TEZ-749
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Bikas Saha
> Labels: newbie
>
> Vertices in the dag should have the same order as when they were added by the
> user. So if the user does dag.addVertex(va).addVertex(vb) then va should have
> id 0 and vb should have id 1.
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