Publishing/subscribing system based on clusters and method for guaranteeing reliability of publishing/subscribing system based on clusters

The invention discloses a publishing/subscribing system based on clusters and a method for guaranteeing the reliability of the publishing/subscribing system based on the clusters. The publishing/subscribing system comprises a client side, a route module, a data module and a manager module. The client side is connected with a publishing/subscribing agent module through JAVA message services and carries out publishing/subscribing operation through the publishing/subscribing agent module; the route module is used for receiving and forwarding publishing/subscribing massages; the data module is used for receiving subscription information and notices from the client side and sending and receiving messages; the manager module is used for recording cluster information, maintaining a tree topology formed by the clusters and querying and configuring parameter information of the system. By adopting the method, perfect cluster framework design, a multi-priority feedback queue based on a Bloom Filter and manager dual-system hot backup can be achieved, and therefore the high reliability of the system is guaranteed.