Gunalan,

Solr Core (core), is one-to-one with a Solr process and its data directory. It 
can be a shard, or part of a replica.
Collection - is one or more shards grouped together, and can be replicated for 
reliability, availability and performance
Node - is a machine in a Zookeeper group
SolrCluster - is a Zookeeper group of nodes

cheers -- Rick

On 2017-09-27 10:27 PM, Gunalan V wrote:
Hello,

Could someone please tell me the difference between Solr Core (core),
Collections, Nodes, SolrCluster referred in SolrColud. It's bit confusing.

If there are any diagrammatic representation or example please share me.


Thanks!


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