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https://issues.apache.org/jira/browse/TEZ-3206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15359810#comment-15359810
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Lalitha Viswanathan commented on TEZ-3206:
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Hi, I wanted hive.tez.auto.reducer.parallelism=true feature, in shuffle hash
join (hive.optimize.dynamic.partition.hashjoin=true). Cloned the master branch,
compiled and deployed the 0.9-SNAPSHOT binaries of tez, and re-tried. But I
don't see the feature taking effect. Am I missing something? Thanks!
> Have unordered partitioned KV output send partition stats via
> VertexManagerEvent
> ---------------------------------------------------------------------------------
>
> Key: TEZ-3206
> URL: https://issues.apache.org/jira/browse/TEZ-3206
> Project: Apache Tez
> Issue Type: New Feature
> Reporter: Ming Ma
> Assignee: Ming Ma
> Fix For: 0.9.0
>
> Attachments: TEZ-3206-2.patch, TEZ-3206-3.patch, TEZ-3206-4.patch,
> TEZ-3206.patch
>
>
> As part of the auto-parallelism feature, ordered partitioned KV output's
> partition stats are sent to ShuffleVertexManager via VertexManagerEvent. But
> this isn't available for unordered partitioned output. Having
> {{UnorderedPartitionedKVWriter}} send partition stats will enable the
> auto-parallelism support for unordered KV or other custom data routing
> mechanisms that depend on partition size.
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