Tommaso Teofili created SOLR-3425:
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Summary: 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
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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