[
https://issues.apache.org/jira/browse/HIVE-13293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kai Zheng updated HIVE-13293:
-----------------------------
Summary: Query occurs performance degradation after enabling parallel order
by for Hive on Spark (was: Query occurs performance degradation after enabling
parallel order by for Hive on sprak)
> Query occurs performance degradation after enabling parallel order by for
> Hive on Spark
> ---------------------------------------------------------------------------------------
>
> Key: HIVE-13293
> URL: https://issues.apache.org/jira/browse/HIVE-13293
> Project: Hive
> Issue Type: Bug
> Components: Spark
> Affects Versions: 2.0.0
> Reporter: Lifeng Wang
> Assignee: Rui Li
>
> I use TPCx-BB to do some performance test on Hive on Spark engine. And found
> query 10 has performance degradation when enabling parallel order by.
> It seems that sampling cost much time before running the real query.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
