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Message-ID: <30145076.125231288290260333.JavaMail.jira@thor>
Date: Thu, 28 Oct 2010 14:24:20 -0400 (EDT)
From: "Martijn van Groningen (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
Subject: [jira] Issue Comment Edited: (SOLR-2205) Grouping performance
 improvements
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    [ https://issues.apache.org/jira/browse/SOLR-2205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12925900#action_12925900 ] 

Martijn van Groningen edited comment on SOLR-2205 at 10/28/10 2:23 PM:
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bq. the searchtime was around 300 ms whereas the same query without the code changes
BTW this doesn't apply to the first search. The first search is *slow*, but by configuring query listeners the first user wouldn't notice.

      was (Author: martijn):
    bq. the searchtime was around 300 ms whereas the same query without the code changes
BTW this doesn't apply on the first search. The first search is *slow*, but by configuring query listeners the first user wouldn't notice.
  
> 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
>
>         Attachments: 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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