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Date: Sun, 16 Sep 2012 07:06:07 +1100 (NCT)
From: "Michael Garski (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Commented] (SOLR-2592) Pluggable shard lookup mechanism for
 SolrCloud
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    [ https://issues.apache.org/jira/browse/SOLR-2592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13456482#comment-13456482 ] 

Michael Garski commented on SOLR-2592:
--------------------------------------

That was my initial thought as well, however if the value that is hashed on to determine shard membership cannot be extracted from the unique id, the realtime get handler would have to broadcast the query to all shards in the collection. Perhaps the shard.keys parameter could be added to the realtime get handler, but that seems to be counter to the handler's purpose.
                
> Pluggable shard lookup mechanism for SolrCloud
> ----------------------------------------------
>
>                 Key: SOLR-2592
>                 URL: https://issues.apache.org/jira/browse/SOLR-2592
>             Project: Solr
>          Issue Type: New Feature
>          Components: SolrCloud
>    Affects Versions: 4.0-ALPHA
>            Reporter: Noble Paul
>            Assignee: Mark Miller
>         Attachments: dbq_fix.patch, pluggable_sharding.patch, pluggable_sharding_V2.patch, SOLR-2592.patch, SOLR-2592_r1373086.patch, SOLR-2592_r1384367.patch, SOLR-2592_rev_2.patch, SOLR_2592_solr_4_0_0_BETA_ShardPartitioner.patch
>
>
> If the data in a cloud can be partitioned on some criteria (say range, hash, attribute value etc) It will be easy to narrow down the search to a smaller subset of shards and in effect can achieve more efficient search.  

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