David Smiley created SOLR-17568:
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             Summary: Remove remote *core* query in SolrCloud mode
                 Key: SOLR-17568
                 URL: https://issues.apache.org/jira/browse/SOLR-17568
             Project: Solr
          Issue Type: Task
      Security Level: Public (Default Security Level. Issues are Public)
          Components: SolrCloud
            Reporter: David Smiley
            Assignee: David Smiley


If a SolrCloud node receives a request with a local core name (not a collection 
name), it will be handled by the local core.  But it even works with a remote 
core -- it'll be forwarded to the node that has a core by that name.  I think 
there's no use-case for that -- users should only reference collections (any 
node) or a core on a node where it's known to exist (on that node!) since it's 
a core not a cluster concept.  This got my attention because the functionality 
requires iterating all collections.  I shall remove this in Solr 10.

There is exactly one test for this functionality -- 
{{org.apache.solr.cloud.AbstractBasicDistributedZk2TestBase#addAndQueryDocs}}



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