MQTT service-based underlying moving ring platform switching method and device

The invention discloses an MQTT service-based underlying moving ring platform switching method and device, and the method comprises the steps: obtaining monitoring data of a data center infrastructure, and carrying out the subject classification of the obtained monitoring data based on an MQTT publishing/subscribing normal form; a backup switching mechanism is formed by using a theme subscription normal form of an MQTT service, and data in an MQTT server is acquired to be processed in an active ring system as follows: a plurality of operation characteristic parameters of a current dynamic ring system are classified and evaluated based on a historical mean value, and classification evaluation probabilities are weighted and fused into a comprehensive failure probability of the current dynamic ring system; and according to whether the heartbeat packet sends a request in the heartbeat request time period or not, under the condition of judging that the current moving-ring system is invalid, switching to a backup m