System and method for recording and recovering checking point in distributed environment

Abstract

The invention discloses a system and a method for recording and recovering a checking point in a distributed environment. The system comprises a monitoring module, a checking point recording module and a checking point recovering module, the monitoring module monitors whether a process correctly runs or not, closes the recording module in abnormal running and starts the recovering module, the checking point recording module records the checking point by taking a message as a unit, the checking point recovering module recovers the checking point according to a certain rule, the monitoring module is respectively connected with the checking point recording module and the checking point recovering module, and the monitoring module, the checking point recording module and the checking point recovering module monitor, record and recover running information of a parent process respectively. The method includes recording and recovering the checking point. The device solves the problem that consistent checking points cannot be finally found among distributed checking points, communication volume between processes is quite less, and the device has the advantage of non-blocking property of the distributed checking points.

Description

technical field [0001] The invention belongs to the field of computer science and relates to the reliability of computer clusters, more specifically, it is an asynchronous checkpoint technology protocol suitable for distributed environments and can be used for computer cluster error recovery. Background technique [0002] Currently, computing tasks are becoming increasingly complex and require ever-increasing computation times. At the same time, high-performance computing systems include an increasing number of failure-prone components. The end result is that long-running distributed computations are increasingly interrupted by frequent hardware errors. In distributed computing, when a process fails, the cost is not only the loss of all calculations of the process, but also the loss of calculations of the calculation processes communicating with it. In order to ensure that distributed applications can be used more effectively in large-scale environments, it is imperative t...

AI Technical Summary

Problems solved by technology

However, since the checkpoint is recorded randomly by the process itself, there may be a problem that a consistent state cannot be found

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