You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "Matei Zaharia (JIRA)" <ji...@apache.org> on 2014/11/06 18:35:35 UTC

[jira] [Resolved] (SPARK-681) Optimize hashtables used in Spark

     [ https://issues.apache.org/jira/browse/SPARK-681?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matei Zaharia resolved SPARK-681.
---------------------------------
    Resolution: Fixed

> Optimize hashtables used in Spark
> ---------------------------------
>
>                 Key: SPARK-681
>                 URL: https://issues.apache.org/jira/browse/SPARK-681
>             Project: Spark
>          Issue Type: Improvement
>            Reporter: Matei Zaharia
>
> The hash tables used in cogroup, join, etc take up a lot more space than they need to because they're using linked data structures. It would be nice to write a custom open hashtable class to use instead, especially since these tables are "append-only". A custom one would likely run better than fastutil as well.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org