High availability method for distributed software of spaceflight ground system
A ground system, distributed technology, applied in the field of high-availability solutions, can solve problems such as network unreliability
Active Publication Date: 2022-05-31
10TH RES INST OF CETC
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Problems solved by technology
However, due to the natural unreliability of the network, delay is inevitable, and network delay is not within the scope of CAP discussion
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[0019] refer to figure 1 , figure 2 , image 3 . According to the present invention, firstly, a distributed memory database service agent is established, each agent is associated with an actual memory database service, and the memory database service agent is responsible for starting, stopping, restarting, and arbitrating the master and backup of the memory database; then, the memory database service agent Each other interacts with each other's state through heartbeat, and judges the state of the memory database service agent and the memory database according to whether the heartbeat of the other party's agent is received by the threshold time. If the threshold time is received, it is judged that the memory database service agent and the memory database of each other are alive, otherwise it is considered that the other party or The self-in-memory database service agent and the in-memory database are lost; in the case of mutual survival, according to the time when each in-me...
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The distributed software high-availability method for the spaceflight ground system has the advantages of high throughput, high availability and expandability. According to the technical scheme, firstly, each agent is associated with an actual memory database service, and the memory database service agents start and arbitrate a main memory database and a standby memory database; then, the memory database service agents interact own states through heartbeats, the memory database service agents and the memory database states are judged according to whether the heartbeat of the agent of the opposite side is received or not within threshold time, and if yes, it is judged that the memory database service agents and the memory databases of the memory database service agents and the memory databases of the memory database service agents and the memory databases survive; otherwise, considering that the memory database service agent and the memory database of the opposite side or the own are lost; under the condition that each memory database survives, according to the time when each memory database becomes the main service and the ip size of the corresponding physical machine, arbitrating the main and standby of the memory database; and when the heartbeat cannot be received by each other, the main and standby of the memory database are arbitrated by the on-off of the three-party ip cluster.
Description
technical field [0001] The invention relates to a high-availability solution mainly applied to master-standby or master-slave distributed systems of aerospace ground stations. Background technique [0002] At present, the distributed system represents the development direction of the system structure in various fields. Compared with the traditional centralized system, the information distribution of the distributed system has nothing to do with the geographical location, the advantages of convenient program deployment and high reliability. If one of the nodes fails, the remaining nodes can continue to operate, and the entire system will not collapse due to the failure of one or a few nodes. Therefore, distributed systems have good fault tolerance. Each node in the distributed system is interconnected through a communication network. The communication network is composed of communication lines, modems and communication processors, etc. Users at different nodes can exchange ...
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Login to View More IPC IPC(8): G06F11/20G06F11/30H04L41/0654H04L41/0663H04L43/10
CPCG06F11/2017G06F11/3006G06F11/302H04L41/0663H04L43/10H04L41/0661Y02D10/00
Inventor 张修盛王钧慧
Owner 10TH RES INST OF CETC