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From Aurélien MAZOYER <>
Subject Re: Creating a new core
Date Thu, 21 Aug 2014 09:15:55 GMT

Collections and cores are almost the same. In a monoinstance 
environnement, collection or core are physical indexes.
But a collection is more like a logical index : in a distributed 
environment, a collection is a logical index that is splitted/replicated 
in multiple cores (physical indexes) on the different machines for 

To create a collection in a monoinstance environnement, you must point 
to a directory that contains a valid configuration for this core. You 
should copy the directory of an existing core, delete the file and the data folder and then add it though the Solr 

P.S. : you'd better to post your question on the solr mailing instead of 
the lucene mailing list :-)


Le 21/08/2014 11:04, a écrit :
> Hello,
> I am using SOLR 4.6.0.
> Is a SOLR core the same as a 'collection'?
> In SOLR Admin, when I create a new core, I get the following message:
> ---------------------------------------------------------------------------------------------------
> Error CREATEing SolrCore 'core2': Unable to create core: core2 Caused by: Can't find
resource 'solrconfig.xml' in classpath or '/home/solr/solr-4.6.0/example/solr/core2/conf'
> ---------------------------------------------------------------------------------------------------
> What gives?
> Many thanks.
> Philippe

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