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https://issues.apache.org/jira/browse/TEZ-2221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14527479#comment-14527479
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Rohini Palaniswamy commented on TEZ-2221:
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bq. dag.createVertexGroup("group_1", v1,v2); dag.createVertexGroup("group_2",
v1,v2);
It should be a simple change for us to reuse the vertex group. But since we
have never used it that way want to ensure that Tez will be fine if we
constructed plans like that.
bq. dag.createVertexGroup("group_1", v1,v2); dag.createVertexGroup("group_1",
v2,v3);
We are not reusing group names anywhere. So that is not an issue for us.
> VertexGroup name should be unqiue
> ---------------------------------
>
> Key: TEZ-2221
> URL: https://issues.apache.org/jira/browse/TEZ-2221
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Jeff Zhang
> Assignee: Jeff Zhang
> Fix For: 0.7.0, 0.5.4, 0.6.1
>
> Attachments: TEZ-2221-1.patch, TEZ-2221-2.patch, TEZ-2221-3.patch,
> TEZ-2221-4.patch
>
>
> VertexGroupCommitStartedEvent & VertexGroupCommitFinishedEvent use vertex
> group name to identify the vertex group commit, the same name of vertex group
> will conflict. While in the current equals & hashCode of VertexGroup, vertex
> group name and members name are used.
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