I want to set up a dev/test environment but don’t want to have many physical servers. Can I simulate this with multiple nodes on the same host?
Yes. It is possible to put more than one Aerospike node on a host. However, Aerospike makes the most of each host, so there is no need to do this in production. The only reason to put more than one node on a host is for testing/development reasons.
To do so make sure each node has its own set of ports and file (pid file, logs, etc).