Master/slave realization method for dispatching server and dispatching server

Abstract

The invention provides a method for realizing the master scheduling and stand-by scheduling of a scheduling server, which comprises the steps: whether a master scheduling server can provide scheduling services for a client end is confirmed; if the master scheduling server can not provide scheduling services for the client end, a stand-by scheduling server can provide scheduling services for the client end by using a new P2P topological relationship without the condition that the data of the P2P topological relationship maintained by the master scheduling server is obtained. The invention alsoprovides the stand-by scheduling server, a scheduling server system, a method for providing scheduling services of a scheduling server and a scheduling server. The stand-by scheduling server of the invention does not need a storing device used for storing the data of the P2P topological relationship, thus saving cost; the invention also does not need the master scheduling server to synchronize the data of the P2P topological relationship for the stand-by scheduling server, thus promoting the reliability of point-to-point data transmission.

Description

technical field [0001] The invention relates to the communication technology, in particular to the master / backup realization technology of the scheduling server and the technology of providing the scheduling service. Background technique [0002] Traditional client / server (C / S, client / server) architecture such as figure 1 As shown, each client (client) obtains data directly from the application server. [0003] However, for applications such as downloading, video-on-demand, and live broadcasting, the application server needs to transmit a large amount of data to the client. In order to reduce the burden brought by transmitting a large amount of data to the application server and the bearer network, those skilled in the art have developed a peer-to-peer (P2P, Peer To Peer) technology. Such as figure 2 As shown, in the P2P technology, the client can not only obtain data from the application server, but after other clients obtain the same data, the client can also obtain da...

AI Technical Summary

Problems solved by technology

[0015] Although the above-mentioned implementation method can still realize the active-standby switching of the scheduling server, the inventor found after careful analysis that this method is very complicated to implement and will increase the probability of software errors. Since the P2P topology relationship data is interrelated, a place If an error occurs, the entire P2P topology relationship may be unavailable; secondly, in some cases, the P2P topology relationship data still needs to be fully synchronized. For example, when the standby scheduling server fails, the primary scheduling server needs to wait for the standby scheduling server to recover. Finally, synchronize the P2P topology relationship data to the standby scheduling server at one time; sometimes, the main scheduling server can also save all the modified data, and then synchronize all the modified data to the standby scheduling server after the standby scheduling server recovers. However, if the recovery time of the standby scheduling server is too long, the accumulated modified data may exceed the amount of data synchronized at one time, or even exceed the maximum space that the primary scheduling server can use

[0016] It can be seen that the above-mentioned redundant backup mechanisms all have defects in performance, cost or reliability.

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