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A dual-computer hot backup method based on memory paging synchronization

A technology of memory page change synchronization and dual-machine hot backup, which is applied in data exchange networks, digital transmission systems, electrical components, etc. Improve reliability and availability, improve robustness, and achieve simple-in-principle effects

Active Publication Date: 2016-08-17
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The activation of the standby machine and the restoration of the main machine cannot achieve a non-disruptive switchover. During this process, the business does not have continuity

Method used

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  • A dual-computer hot backup method based on memory paging synchronization

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Embodiment

[0070] This embodiment proposes an implementation method of a dual-machine hot backup system based on memory paging synchronization. First, a dual-machine architecture topology is established, and the dual-machine control software creates a shared memory for key connection data for the application; during the operation of each application, the key connection data It is stored in the corresponding shared memory in real time, and the memory page synchronization software regularly detects the changes of the shared memory page and performs shared memory page synchronization. The two-machine control software monitors the software and hardware status of the two machines and controls the switching of the two machines. After the two machines are switched, each application loads the key connection data in the shared memory to complete the seamless connection operation of the system. The present invention comprises the following processing steps:

[0071] (1) To establish a system archi...

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Abstract

The invention discloses a dual-machine hot standby method based on memory paging synchronization, which includes the following steps: (1) establishing a dual-machine architecture topology of a master machine and a standby machine; (2) creating a shared memory for key continuous data; The connection data is stored in the corresponding shared memory in real time; (4) The memory page takes a snapshot of the shared memory page and page synchronization; (5) Controls the switching between the two machines; (6) After the switching between the two machines, the standby machine becomes the master and loads the key connection data. Seamlessly continue the operation of the computer system and complete the dual-machine hot backup. The invention enables undisturbed switching between the activation of the standby machine and the recovery of the main machine, and business continuity; secondly, an advanced dual-machine detection method is adopted, which can detect the hardware and software of the dual-machine, and go deep into the inside of the detection program, effectively The reliability and availability of the system are improved, and the switching time between two machines is only a few seconds.

Description

technical field [0001] The invention belongs to the field of dual-machine hot backup systems, in particular to a dual-machine hot backup method based on memory paging synchronization. Background technique [0002] At this stage, general commercial two-machine cluster systems are well implemented in server status detection and resource takeover, but there are still some shortcomings in actual high real-time system applications, mainly: [0003] Generally, the commercial dual-computer system only detects the status of the server, not the internal status of the service program. When the service program has a software failure, it cannot detect this situation, which reduces the reliability and availability of the system to a certain extent; [0004] When the server fails, the general commercial dual-machine system can only automatically switch machines, and does not support other user-defined operations, which is less flexible; [0005] General commercial dual-machine systems do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
Inventor 陈琛刘兵占怡柳永齐陈文明
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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