runtime mode differences mean that FusionAuth won't start

dan · 15 Dec 2020, 16:26

I see this message in my log file:

2020-12-15 9:20:23.203 AM ERROR io.fusionauth.api.service.system.NodeService - Node [1bdcee86-5568-48cc-b680-9e39532bdd6c] cannot be added. The runtime mode is [Production] and this node in [Development] mode.

What does this mean? FusionAuth doesn't start, how can I fix this?

dan · 15 Dec 2020, 16:29

It looks like you switched to development mode from production mode, possibly to run some migrations automatically.

This message means that FusionAuth sees an entry in its node records that would lead to an incompatible configuration. What we really want to avoid is a cluster of FusionAuth instances with some in development and others in production, as that might lead to some confusing behavior.

If you are running a single node, you can try restarting FusionAuth a few times and that node record should be reset. You can also switch the node back to production and make sure it shuts down cleanly, which should remove the node record.