Multi-node coordinated time consistency management method

Abstract

This invention relates to a managing method for coordinating consistency of time by multiple nodes including two parts: 1, carrying out role and hierachical decomposion to nodes in a distributibve system according to functions and logic relations, 2, the time synchronized hierarchical association flow of the nodes includes the following steps: 2.1, the distributive member nodes send push time request to process internal messages and push the time, 2.2, a local time coordinator caries out information maintenance and time synchronization to member nodes in its coordinated sphere, 2.3, a global time coordinator maintains information and synchronizes time for all local time coordinators.

Description

technical field [0001] The invention relates to a distributed multi-node time management method, belonging to the field of distributed systems and computer networks. Background technique [0002] A distributed system refers to a computer system that is physically distributed and logically consistent by connecting geographically dispersed nodes through a network. It enables the various nodes placed in it to work in coordination with each other to complete a task together. Distributed system has become one of the important research fields of computer science due to its powerful computing power and wide application space. However, in the actual system operation, sometimes inconsistent and abnormal phenomena occur. Take a phenomenon in distributed interactive simulation as an example: as shown in Figure 1, the tank fires at the target, and then transmits this message to other members. , after the target received it, an explosion event was triggered, and the message was passed ...

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Problems solved by technology

The current problem of this type of method is that the collection of global time information and the global calculation of each node are inefficient and occupy a large amount of network bandwidth. With the expansion of the scale of the distributed system and the increase of the number of nodes, it seriously affects the system efficiency, and if the calculation method is improper and effective deadlock avoidance and detection measures are not taken, the system operation process will not be able to proceed

This method can overcome the shortcomings of low execution efficiency in method 1 to a certain extent, but for events that occur within the same period of time and have no causal relationship between them, their submission order cannot be guaranteed to be consistent

Therefore, this method is not suitable for applications that have strict requirements on the order of message processing, such as in the field of analytical simulation

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