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https://issues.apache.org/jira/browse/TEZ-3819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16126466#comment-16126466
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Gopal V commented on TEZ-3819:
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bq. Round robin partitioner cannot give consistent partitioning
Why? Round-robin is consistent state partitioning, unless there's some mistake
in code?
> Round robin partitioner make fair cartesian product not fault tolerant
> ----------------------------------------------------------------------
>
> Key: TEZ-3819
> URL: https://issues.apache.org/jira/browse/TEZ-3819
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Zhiyuan Yang
> Assignee: Zhiyuan Yang
> Attachments: TEZ-3819.patch
>
>
> In case of task failure and retry, round robin partitioner cannot give
> consistent partitioning, which can cause wrong output of fair cartesian
> product.
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