RabbitMQ start error following server rename and new Mnesia folder created

[Pedro Figueroa]

Hello, we recently renamed our staging Rabbitmq server and we are getting errors in the logs when trying to start our Rabbitmq service. I have also noticed the MnesiaCore.rabbit and log file getting auto generated with the old server name.

I tried adding the Nodename to therabbitmq.config file but that didn't help.

I also tried to test the TCP connection with the new hostname as in another thread I saw but it said connection failed.

Any suggestions on how to resolve would be appreciated!

Our servers are using Rabbitmq 3.6.6 and Erlang 19.2

=INFO REPORT==== 20-Mar-2024::00:35:18 ===
Error description:
   {could_not_start,rabbit,
       {error,
           {{shutdown,
                {failed_to_start_child,rabbit_epmd_monitor,
                    {{badmatch,{error,nxdomain}},
                     [{rabbit_epmd_monitor,init,1,
                          [{file,"src/rabbit_epmd_monitor.erl"},{line,56}]},
                      {gen_server,init_it,6,
                          [{file,"gen_server.erl"},{line,328}]},
                      {proc_lib,init_p_do_apply,3,
                          [{file,"proc_lib.erl"},{line,247}]}]}}},
            {child,undefined,rabbit_epmd_monitor_sup,
                {rabbit_restartable_sup,start_link,
                    [rabbit_epmd_monitor_sup,
                     {rabbit_epmd_monitor,start_link,[]},
                     false]},
                transient,infinity,supervisor,
                [rabbit_restartable_sup]}}}}

[Luke Bakken]

Hello,

RabbitMQ 3.6.6 is unsupported. We can't spend time supporting it on this mailing list. Please upgrade to a supported version.