That was it - a duplicated port for the client connectors config (my bad :facepaml).
It works now as expected. Many thanks for your help! I can move now on with the PoC for our big migration... Best regards On 2025/10/02 15:47:20 Aleksandr Polovtsev wrote: > Could you please clarify, which exceptions you are experiencing? > > Your POC looks alright, the only issue is the `ignite.clientConnector.port` > property, which is the same in all configs, they must be different if you > are running the nodes on the same machine. Also please make sure to add the > `--add-opens` JVM parameters mentioned in the documentation. > > -- > With regards, > Aleksandr Polovtsev
