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From Rick Leir <>
Subject Re: SOLR terminology
Date Thu, 28 Sep 2017 08:07:29 GMT

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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