2020-09-08 21:11:04,208 - [ERROR] - from com.carbonblack.cbfs.http.listeners.WebAppContextListener in main Initialization error, exiting java.net.ConnectException: Connection refused (Connection refused)
2020-09-08 21:47:56,080 - [ERROR] - from com.carbonblack.cbfs.http.listeners.WebAppContextListener in main Initialization error, exiting com.rabbitmq.client.AlreadyClosedException: channel is already closed due to channel error; protocol method: #method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no exchange 'api.events' in vhost '/', class-id=50, method-id=20)
Follow the steps:-
1. Disable SELinux.
2. Clear temporary RabbitMQ Mnesia data using this solution.
3. Restart services .