You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@hive.apache.org by "Xuefu Zhang (JIRA)" <ji...@apache.org> on 2014/09/22 22:19:36 UTC
[jira] [Created] (HIVE-8219) Multi-Insert optimization, don't sink
the source into a file [Spark Branch]
Xuefu Zhang created HIVE-8219:
---------------------------------
Summary: Multi-Insert optimization, don't sink the source into a file [Spark Branch]
Key: HIVE-8219
URL: https://issues.apache.org/jira/browse/HIVE-8219
Project: Hive
Issue Type: Bug
Components: Spark
Reporter: Xuefu Zhang
Current implementation split the operator plan at the lowest common ancester by inserting one FileSinkOperator and a list of TableScanOperators. Writing to a file (by the FS) is expensive. We should be able to insert a ReduceSinkOperator instead. The result RDD from the first job can be cached and refereed in subsequent Spark jobs.
This is a followup for HIVE-7503.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)