Redis how does redis avoid a couple of master and slave been allocationed on the same node?

If a couple of master and slave been allocationed on the same node , and the node down , the whole redis cluster will creash. My environment is 3 maters and 3 slaves on 3 nodes，the redis version is 4.0.6. and I found there is a chance that a couple of master and slave will allocationed on the same node. I used this command to build the cluster： redis-trib.rb create --replicas 1 192.168.1.1:7001 192.168.1.1:7002 192.168.1.2:7003 192.168.1.2:7004 192.168.1.3:7005 192.168.1.3:7006

Does this question been solved on version 5 or later?

Comment From: dmandalidis

Hi @antirez,

Since I have a similar problem, is there any solution to this, or we have to write our own scripts to retain the initial cluster topology?

(maybe mixing more than one Redis installations into the same VM is the source of the problem)

Comment From: l3950809

Is there anyone who can give an answer?