First time setup of a Redis cluster.
I believe all is configured correctly but I am unable to see the status of node/s in our other Data Centre when running “rladmin status”. They are showing as UNREACHABLE. All else seems to be working correctly
I thought all the required ports had been opened up between the Data Centres. Can anyone tell me over which port the rladmin status check is performed?
Yes - allowing cross-datacentre ICMP traffic fixed the issue.
Now all nodes are reporting an “OK” status irrespective of which data-centre they are in.