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https://issues.apache.org/jira/browse/HIVE-16553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15987794#comment-15987794
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Jason Dere commented on HIVE-16553:
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[~hagleitn] [~gopalv] can you review? Just a simple default config change.
> Change default value for hive.tez.bigtable.minsize.semijoin.reduction
> ---------------------------------------------------------------------
>
> Key: HIVE-16553
> URL: https://issues.apache.org/jira/browse/HIVE-16553
> Project: Hive
> Issue Type: Bug
> Components: Configuration
> Reporter: Jason Dere
> Assignee: Jason Dere
>
> Current value is 1M rows, would like to bump this up to make sure we are not
> creating semjoin optimizations on dimension tables, since having too many
> semijoin optimizations can cause serialized execution of tasks if lots of
> tasks are waiting for semijoin optimizations to be computed.
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