Let us set up SolrCloud. We will look at two ways of setting up SolrCloud. One setup is the ZooKeeper service running inside SolrCloud. This can be considered as a dev or a test setup that can be used for evaluating SolrCloud or for running benchmarks. Another is the production setup where SolrCloud is set up as part of the Apache Tomcat application server and the ZooKeeper ensemble as a separate service. Let us start with the test setup.
We will create a test setup of a cluster with two shards and two replicas. The Solr installation directory comes inbuilt with the packages required to run SolrCloud. There is no separate installation required. ZooKeeper is also inbuilt in the SolrCloud installation. It requires a few parameters during Solr start-up to get ZooKeeper up and running.
To start SolrCloud, perform the following steps:
Create four copies of the example directory in the Solr installation, namely
node1,node2,node3, andnode4:cp -r example...