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Posted to dev@hive.apache.org by "Xuefu Zhang (JIRA)" <ji...@apache.org> on 2014/09/22 22:21:34 UTC

[jira] [Updated] (HIVE-8219) Multi-Insert optimization, don't sink the source into a file [Spark Branch]

     [ https://issues.apache.org/jira/browse/HIVE-8219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xuefu Zhang updated HIVE-8219:
------------------------------
    Labels: Spark-M1  (was: )

> 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
>              Labels: Spark-M1
>
> 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.



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