[
https://issues.apache.org/jira/browse/HIVE-11082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Chengxiang Li updated HIVE-11082:
---------------------------------
Attachment: HIVE-11082.1-spark.patch
SparkPlan support multi edges between nodes in default, just remove the check
during SparkPlan::connect.
But self join/union does not benifit from RDD caching with this patch actually,
as self join/union would set different alia names to the source table, which
make the ReduceSinkOperators in different MapWork do not equals with each
other.
> Support multi edge between nodes in SparkPlan[Spark Branch]
> -----------------------------------------------------------
>
> Key: HIVE-11082
> URL: https://issues.apache.org/jira/browse/HIVE-11082
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Chengxiang Li
> Assignee: Chengxiang Li
> Attachments: HIVE-11082.1-spark.patch
>
>
> For Dynamic RDD caching optimization, we found SparkPlan::connect throw
> exception while we try to combine 2 works with same child, support multi edge
> between nodes in SparkPlan would help to enable dynamic RDD caching in more
> use cases, like self join and self union.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
