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https://issues.apache.org/jira/browse/TEZ-802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13984976#comment-13984976
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Bikas Saha commented on TEZ-802:
--------------------------------
TestDAGImpl is also cumbersome since this would require construction of a new
DAG and then setting up the event routers etc for the new DAG during test
setup(). IMO, the basic test is fine to catch obvious errors and the e2e cases
are covering obvious bugs in the input case.
> Determination of Task Placement for 1-1 Edges
> ---------------------------------------------
>
> Key: TEZ-802
> URL: https://issues.apache.org/jira/browse/TEZ-802
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Bikas Saha
> Assignee: Bikas Saha
> Attachments: TEZ-802.1.patch, TEZ-802.2.patch
>
>
> Currently, task placement is determined by TaskLocationHints that are
> specified by the user in the API or during runtime. Everything else runs as
> without placement constraints. While this works for broadcase and
> scatter-gather edges, it does not work for 1-1 edges.
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