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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2592) Pluggable shard lookup mechanism for SolrCloud
Date Sun, 16 Sep 2012 16:04:08 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13456592#comment-13456592
] 

Yonik Seeley commented on SOLR-2592:
------------------------------------

bq. isn't it straight forward when we say shard on an arbitrary field

No, I think that makes things very difficult.  Every place where you used to have "id" you
now need to pass "id" and this other configurable field (or maybe even more than one).  That
puts much more of a burden on clients trying to talk to solr since "id" is no longer good
enough to efficiently identify where a document lives in the cluster.
                
> 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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