Switching from multicast to unicast cluster

stephan_b Feb 27, 2019 2:47 PM

I am troubleshooting a multicast problem on my cluster, but while that is ongoing I also want to try to switch to unicast for my 3-node cluster.

What is involved in reconfiguring an existing cluster from multicast to unicast?

1. Re: Switching from multicast to unicast cluster

rhusar Feb 28, 2019 7:45 AM (in response to stephan_b)

You can switch the used channel to use TCP stack instead (by default it uses multicast for discovery). Use the following CLI command:

/subsystem=jgroups/channel=ee:write-attribute(name=stack,value=tcp)
Actions
2. Re: Switching from multicast to unicast cluster

stephan_b Feb 28, 2019 4:12 PM (in response to rhusar)

The command was a little different for me, but that might be my version of WildFly vs yours. Thanks!
/subsystem=jgroups:write-attribute(name=default-stack,value=tcp)
Actions