When upgrading people often want to run multiple versions of Flux on the same machine. This is possible as long as each Flux engine has a different server name and is occupying a different registry port.

You can set the server_name property and the registry_port property in your Flux engine configuration file. By default, the Flux server_name is "Flux" and the registry_port is 1099.

For instance, you could use the default settings for one of your Flux engines and then for the other engine set the following properties in your engine configuration file:

registry_port=1234
server_name=Flux65

If you are running two instances of Flux 7+, you will need to edit the fluxconfig.properties file in your flux.war file to point to the new registry_port and server_name information. The fluxconfig.properties file is located in the WEB-INF\classes directory in your flux.war file.

Also, versions must match when you are trying to connect from Designer to engine. For instance, a Flux 6.5.5 Designer cannot connect to a Flux 7.0.13 engine.