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https://issues.apache.org/jira/browse/TEZ-1065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14083180#comment-14083180
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Bikas Saha commented on TEZ-1065:
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There is already something like that happening to detect cycles. See
AnnotatedVertex.
> DAGStatus.getVertexStatus and other vertex related API's should maintain
> vertex order
> -------------------------------------------------------------------------------------
>
> Key: TEZ-1065
> URL: https://issues.apache.org/jira/browse/TEZ-1065
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.5.0
> Reporter: Bikas Saha
> Assignee: Jeff Zhang
> Labels: newbie
> Attachments: TEZ-1065.1.patch, Tez-1065-2.patch, Tez-1065.patch
>
>
> They should maintain the incoming vertex order. In VertexProgress e.g. lets
> use LinkedHashMap instead of HashMap.
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