[
https://issues.apache.org/jira/browse/SPARK-7825?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Hyukjin Kwon updated SPARK-7825:
--------------------------------
Labels: bulk-closed (was: )
> Poor performance in Cross Product due to no combine operations for small
> files.
> -------------------------------------------------------------------------------
>
> Key: SPARK-7825
> URL: https://issues.apache.org/jira/browse/SPARK-7825
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Tang Yan
> Priority: Major
> Labels: bulk-closed
>
> Dealing with Cross Product, if one table has many small files, spark sql
> has to handle so many tasks which will lead to poor performance, while Hive
> has a CombineHiveInputFormat which can combine small files to decrease the
> task number.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
