Start the leader node
bin/solr -c -p 8983 -s example/products/node1/solr
8983 is the port where you want Solr leader node to run
example/products/node1/solr is the solr home for this node.
Start the other nodes providing the Zookeeper host and port
bin/solr -c -p 7574 -s example/products/node2/solr -z localhost:9983
7574 is the port where you want this Solr node to run
example/products/node2/solr is the solr home for this node.
localhost:9983 is the hostname:port for Zookeeper
bin/solr stop -all