Key service system oriented system repentance recovery method and system

Abstract

The invention provides a method and a system for system-level repentance and recovery and aims to a key service system. The system comprises a UNDO controller responsible for the controlling of the entire UNDO recovery process as well as the management to other function modules in the UNDO system, a check point manager responsible for the setting of the check point of a target system and the recovery of the system hard state backup in a rollback procedure; a sorter used for appropriately sorting the user interaction, a log manager used for producing logs from the user interaction and extracting corresponding logs in replay procedure, and a disaccord manager used for conducting detection and compensation to the disaccord interaction predications produced in the replay procedure. The methodadopts the mode of combining rollback and replay together, effectively backtracks and repairs the error system, and at the same time ensures that the user data in the service system can not lose due to reparation, thereby greatly reducing the difficulty and cost of system recovery, simplifying the maintenance work of an operator, reducing MTTR (mean time to repair) finally, and improving the reliability of the service system.

Description

(1) Technical field [0001] The invention relates to a computer system disaster recovery method, in particular to a system-level recovery method and system for critical service systems. (2) Background technology [0002] For a long time, people have focused a lot of research work on improving the reliability of computer system software and hardware, while ignoring another crucial factor in system reliability——human operator. However, almost all large-scale systems are inseparable from human management and maintenance, such as software and hardware configuration and upgrades, as well as fault diagnosis and repair. Professionals will inevitably make mistakes due to various reasons, and human errors have become the main cause of service system downtime. Therefore, how to solve the problem of system failure caused by human error is in front of people. Studies have shown that the operator can self-check 70% to 83% of the errors immediately after making a mistake, and the UNDO me...

AI Technical Summary

Problems solved by technology

[0003] The application of UNDO technology in the field of application programs (such as word processing, spreadsheets, and graphic design software, etc.) and the field of special systems (such as database system management and fault-tolerant design of distributed systems, etc.) Limitations of degree - either incapable of responding to system state failures, or only a targeted internal recovery tool that does not correct for human error

In addition, the existing system-level UNDO technologies are mostly designed for desktop systems, such as Roxio's GoBack, IBM / XPoint's Rapid Restore, Microsoft Windows XP's System Restore, and VMware's Snapshot Manager, etc. Most of these tools are simply Restoring the system state to a previous state, so that all work done by the user during this period will be lost, may be acceptable for an individual user of a desktop system, but for a service system with many users , it is unacceptable to lose the work status of other end users due to the UNDO operation of the system operator

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