[
https://issues.apache.org/jira/browse/HIVE-9574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14309648#comment-14309648
]
Jimmy Xiang commented on HIVE-9574:
-----------------------------------
Patch 1 is on RB: https://reviews.apache.org/r/30739/
> Lazy computing in HiveBaseFunctionResultList may hurt performance [Spark
> Branch]
> --------------------------------------------------------------------------------
>
> Key: HIVE-9574
> URL: https://issues.apache.org/jira/browse/HIVE-9574
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Rui Li
> Assignee: Jimmy Xiang
> Fix For: spark-branch
>
> Attachments: HIVE-9574.1-spark.patch
>
>
> {{RowContainer.first}} may call {{InputFormat.getSplits}}, which is
> expensive. If we switch {{container}} and {{backupContainer}} frequently in
> {{HiveKVResultCache}}, it will downgrade performance.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
