Hi, I need to tweak these variables in my Rabbitmq : heartbeat_timeout_threshold heartbeat_rate heartbeat_interval When I tried to add heartbeat_timeout_threshold = 600 to rabbitmq.conf and reconfigure, the service failed to start with : 13:39:41.756 [error] You've tried to set heartbeat_timeout_threshold, but there is no setting with that name. 13:39:41.758 [error] Did you mean one of these? 13:39:41.838 [error] socket_writer.gc_threshold 13:39:41.838 [error] handshake_timeout 13:39:41.838 [error] auth_http.http_method 13:39:41.838 [error] You've tried to set heartbeat_rate, but there is no setting with that name. 13:39:41.838 [error] Did you mean one of these? 13:39:41.888 [error] heartbeat 13:39:41.889 [error] cluster_name 13:39:41.889 [error] channel_max 13:39:41.889 [error] Error preparing configuration in phase transform_datatypes: 13:39:41.889 [error] - Conf file attempted to set unknown variable: heartbeat_rate 13:39:41.889 [error] - Conf file attempted to set unknown variable: heartbeat_timeout_threshold How can I modify those variables? Regards.