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https://issues.apache.org/jira/browse/SOLR-3425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tommaso Teofili updated SOLR-3425:
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Attachment: SOLR-3425-test.patch
test case: setup a 2 nodes cluster as example A in SolrCloud wiki page
(http://wiki.apache.org/solr/SolrCloud) and run the attached test.
The testLBServerCoreCreation() test should pass while the
testZKHostCoreCreation() should fail
> 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
> Priority: Minor
> Fix For: 4.0
>
> 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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