Double-computer hot standby method based on memory page replacement synchronization

A technology of memory paging synchronization and dual-machine hot backup, which is applied in data exchange networks, digital transmission systems, electrical components, etc. Improve reliability and usability, improve robustness, and realize the effect of simple principle

Active Publication Date: 2014-01-22
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • 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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  • Double-computer hot standby method based on memory page replacement 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 double-computer hot standby method based on memory page replacement synchronization. The double-computer hot standby method based on the memory page replacement synchronization comprises the following steps of (1) establishing a double-computer framework topology with a main computer and a standby computer; (2) creating a key continue data share memory; (3) storing key continue data into a corresponding share memory in real time; (4) carrying out share memory page snapshoot and page synchronization on a memory page; (5) controlling double computer switching; (6) downloading the key continuous data, and seamlessly continuing operation of a computer system to finish double-computer hot standby when the standby computer is switched to be the main computer after the double computer switching is finished. According to the double-computer hot standby method based on the memory page replacement synchronization, which is disclosed by the invention, undisturbed switching between the start of the standby computer and the recovery of the main computer can be realized, and the service is of the continuity; secondly, by utilizing an advanced double-computer detection manner, the hardware and the software of double computers can be detected, and the interior of programs can be deeply detected, so that the reliability and the usability of the system are effectively improved, and the double computer switching time only 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 Applications(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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