[jira] [Closed] (SOLR-2205) Grouping performance improvements

["Martijn van Groningen (Closed) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-2205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martijn van Groningen closed SOLR-2205.
---------------------------------------

       Resolution: Fixed
    Fix Version/s: 3.3

Fixed. The proposed changes got into Solr 3x and 4.0-dev.
                
> Grouping performance improvements
> ---------------------------------
>
>                 Key: SOLR-2205
>                 URL: https://issues.apache.org/jira/browse/SOLR-2205
>             Project: Solr
>          Issue Type: Sub-task
>          Components: search
>    Affects Versions: 4.0
>            Reporter: Martijn van Groningen
>             Fix For: 4.0, 3.3
>
>         Attachments: SOLR-2205.patch, SOLR-2205.patch
>
>
> This issue is dedicated to the performance of the grouping functionality.
> I've noticed that the code is not really performing on large indexes. Doing a search (q=*:*) with grouping on an index from around 5M documents took around one second on my local development machine. We had to support grouping on an index that holds around 50M documents per machine, so we made some changes and were able to happily serve that amount of documents. Patch will follow soon.

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