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https://issues.apache.org/jira/browse/SOLR-4221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13725625#comment-13725625
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Noble Paul commented on SOLR-4221:
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A custom collection can be created by explicitly specifying the router as
'implicit' and by giving the names of the shards explicitly as follows
http://host:port/solr/admin/collections?action=CREATE&name=monthly&router=implicit&collection.configName=x&shards=jan13,feb13,mar13
where 3 shards named jan13,feb13,mar13 will be created
h2.Document routing
* add a special request param called \_route_=june13’ . It means all docs added
in the batch would belong to the same shard or,
* add a special field \_route_ in the document to signal the shard where it
belongs to
* if the collection is created with ‘routeField’ value , the docRouter would
look at that field to get the shard name SOLR-5017
* If it is unable to identify the shard using any of the above methods , the
write operation fails. If the shard is not present , then the write fails too
h2.Query routing
It remain same as other routers. \_route_ parameter can specify the actual
shard name
h2.Creating new shards
There is a a new command CREATESHARD . refer to SOLR-5006.
> Custom sharding
> ---------------
>
> Key: SOLR-4221
> URL: https://issues.apache.org/jira/browse/SOLR-4221
> Project: Solr
> Issue Type: New Feature
> Reporter: Yonik Seeley
> Assignee: Noble Paul
> Attachments: SOLR-4221.patch, SOLR-4221.patch, SOLR-4221.patch,
> SOLR-4221.patch, SOLR-4221.patch
>
>
> Features to let users control everything about sharding/routing.
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