I am using Mesh/Unicast heartbeats with 4 nodes in my cluster and everything is just fine. But this link on Aerospike configuration (Slide number 50 in that presentation) says that:
Aerospike has found that this mechanism(Mesh) works in production with up to 20 nodes
I have not read this limitation any where else. In future, we might have cluster size which can exceed the limit of 20. Can someone please confirm if this is a known limitation ? Thanks.