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From "Martijn van Groningen (JIRA)" <>
Subject [jira] [Updated] (SOLR-2066) Search Grouping: support distributed search
Date Sun, 07 Aug 2011 22:12:27 GMT


Martijn van Groningen updated SOLR-2066:

    Attachment: SOLR-2066.patch

Updated the patch, so that is up to date with the trunk. The code compiles, but the test still

In order to support distributed grouping properly we need a new distributed stage. This stage
uses only the first phase collector and only retrieves the top groups.

All the top groups from the different shards can be merged with the utilities Lucene grouping
module provides (GroupMerger). The groups that survive the merge are send to back to the shard
where the came from in the next phase. 

After the merge the normal query stages kick in. But on the shard side only the second phase
collector is used. 

> Search Grouping: support distributed search
> -------------------------------------------
>                 Key: SOLR-2066
>                 URL:
>             Project: Solr
>          Issue Type: Sub-task
>            Reporter: Yonik Seeley
>         Attachments: SOLR-2066.patch, SOLR-2066.patch
> Support distributed field collapsing / search grouping.

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