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Posted to issues@spark.apache.org by "Xiao Li (JIRA)" <ji...@apache.org> on 2018/01/31 07:59:00 UTC

[jira] [Assigned] (SPARK-22692) Reduce the number of generated mutable states

     [ https://issues.apache.org/jira/browse/SPARK-22692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiao Li reassigned SPARK-22692:
-------------------------------

    Assignee: Marco Gaido

> Reduce the number of generated mutable states
> ---------------------------------------------
>
>                 Key: SPARK-22692
>                 URL: https://issues.apache.org/jira/browse/SPARK-22692
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Marco Gaido
>            Assignee: Marco Gaido
>            Priority: Major
>
> A large number of mutable states can cause a error during code generation due to reaching the constant pool limit. There is an ongoing effort on SPARK-18016 to fix the problem, nonetheless we can also alleviate it avoiding to create a global variables when they are not needed.
> Therefore I am creating this umbrella ticket to track the elimination of usage of global variables where not needed. This is not a duplicate or an alternative to SPARK-18016: this is a complementary effort which can help together with it to support wider datasets.



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