A method of communications in sequence according to PRI in multi physical channels of the cluster

Abstract

The invention discloses a method for a plurality of physical channels in a cluster to communicate according to priority, which comprises the following steps: step S102, the priority of physical channels in the cluster is determined; step S104, a communication link in the physical channel between a source node and a target node of the cluster is built according to priority; step S106, data transmission is carried out between the target node and the source node after the communication link is built; step S108, when the physical channel of data transmission goes wrong, the data transmission is switched to one of the physical channels with the priority lower than the failed physical channel according to the priority of the physical channels; and step S110, the failed physical channel is detected, and when the failed physical channel restores, whether to automatically switch the data transmission to the restored physical channel is determined according to the priority of the physical channels and the priority of the restored physical channel. The invention leads cluster communication to be efficient and reliable.

Description

technical field [0001] The invention relates to cluster communication, in particular to a cluster communication method based on multiple physical transmission channels for message-level transmission. Background technique [0002] With the rapid development of computer technology, the performance and reliability of a single computer are getting better and better, but there are still many practical requirements that a single computer cannot meet. In many cases, it is often necessary to organize multiple computers Together to work together to simulate a more powerful computer to solve the problem, this technology is called cluster technology. [0003] In the cluster system, the division of labor and cooperation of each computer is maintained through communication with each other. Therefore, providing a reliable internal communication mechanism is a strong guarantee for the high availability, high performance and high scalability of the cluster system, and it is also one of the...

AI Technical Summary

Problems solved by technology

In the usual design, the control messages and business messages in the system are usually transmitted using common physical channels and transmission protocols. The problem is that the public physical transmission channels may be congested, and a large number of business messages and control messages are transmitted in a unified manner. Transmission at the transport layer, which may lead to increased transmission delay of control messages, and may even cause critical control messages to fail to respond within the specified time, causing the system to make wrong decisions

In particular, if it is necessary to ensure the reliability of control message transmission, the usual method is to separate the physical channels for control message transmission and business message transmission, so that they run on different high-speed physical transmission channels, so that control messages can be responded and processed in a timely manner. , which improves the reliability of control message transmission, but it also brings new problems, that is, the protocol processing of business messages must be separated from the protocol processing of control messages, and the priority of control message processing must be higher than that of business message processing. It is more complex, the possibility of errors increases, and the separation of message processing increases performance overhead. At the same time, increasing high-speed physical transmission channels also causes waste of resources

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