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https://issues.apache.org/jira/browse/SOLR-3425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13509793#comment-13509793
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Tommaso Teofili commented on SOLR-3425:
---------------------------------------

this issue was opened before the Collections API was designed, so basically 
things have changed along time but apart from that as long as there's SOLR-4140 
the use case I opened this for is safe, therefore I'll close it.
Thanks [~steff1193] for helping out.
                
> CloudSolrServer can't create cores when using the zkHost based constructor
> --------------------------------------------------------------------------
>
>                 Key: SOLR-3425
>                 URL: https://issues.apache.org/jira/browse/SOLR-3425
>             Project: Solr
>          Issue Type: Improvement
>          Components: SolrCloud
>            Reporter: Tommaso Teofili
>            Assignee: Mark Miller
>            Priority: Minor
>             Fix For: 4.1
>
>         Attachments: SOLR-3425-test.patch
>
>
> When programmatically creating cores with a running SolrCloud instance the 
> CloudSolrServer uses the slices nodes information to feed the underlying 
> LBHttpSolrServer so it fails to create cores as there aren't any slices for 
> any new collection (as it's still to be created).
> This happens when using the CloudSolrServer constructor which takes the ZK 
> host as only parameter while it can be avoided by using the constructor which 
> also takes the list of Solr URLs and the underlying LBHttpSolrServer is 
> actually used for making the core creation request.
> However it'd be good to use the ZK host live nodes information to 
> automatically issue a core creation command on one of the underlying Solr 
> hosts without having to specify the full list of URLs beforehand.
> The scenario is when one wants to create a collection with N shards so the 
> client sends N core creation requests for the same collection thus the 
> SolrCloud stuff should just take care of choosing the host where to issue the 
> core creation request and update the cluster state.

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