I am new to Solr Cloud and I have setup of 3 Solr instance and 3 ZooKeeper in my local machine for testing purpose. Now I would like to add new Solr node to that cluster without restarting/reinstalling Solr tomcat services. Solr instances are running on port 8081,8082,8083 and zookeepers are running on 2181,2182,2183. Now I would like add new instance on port 8084. So what will be the efficient way to add it and will I need to use one more zookeeper on port 2184 or not.
Just point your new solr node to the existing zookeeper setup when you start it. That will be enough.