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Posted to issues@spark.apache.org by "Shixiong Zhu (JIRA)" <ji...@apache.org> on 2017/03/08 23:29:38 UTC

[jira] [Resolved] (SPARK-19540) Add ability to clone SparkSession with an identical copy of the SessionState

     [ https://issues.apache.org/jira/browse/SPARK-19540?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shixiong Zhu resolved SPARK-19540.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 2.2.0

> Add ability to clone SparkSession with an identical copy of the SessionState
> ----------------------------------------------------------------------------
>
>                 Key: SPARK-19540
>                 URL: https://issues.apache.org/jira/browse/SPARK-19540
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Kunal Khamar
>             Fix For: 2.2.0
>
>
> Forking a newSession() from SparkSession currently makes a new SparkSession that does not retain SessionState (i.e. temporary tables, SQL config, registered functions etc.) This change adds a method cloneSession() which creates a new SparkSession with a copy of the parent's SessionState.
> Subsequent changes to base session are not propagated to cloned session, clone is independent after creation.
> If the base is changed after clone has been created, say user registers new UDF, then the new UDF will not be available inside the clone. Same goes for configs and temp tables.



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