Method for recording event log of node by fault tolerant mobile computing system

Abstract

The invention belongs to the field of telecommunication digital information communication, and particularly relates to a method for recording and storing the event log contents of a computing process of a mobile host node and a partial order dependency relationship between event logs in a fault tolerant mobile computing system. The method comprises the following steps of: transmitting event information in the computing process to a node message processing mechanism by the mobile host node, and updating the total number of events in the computing process and the total number of non-deterministic events; transmitting the event information and the like to a local mobile support station; transmitting the event information to a log recording mechanism by a support station message processing mechanism, generating a corresponding log deterministic factor #e, and adding the #e into a one-dimensional array of a memory of the mobile support station or reliable storage equipment; and correcting the sequence of elements in the one-dimensional array according to the attached TEN and DEN. By the method, the contents of the events in the computing process of the mobile host node and the partial order dependency relationship can be accurately recorded, and the log recording efficiency of the mobile computing system can be effectively improved.

Description

technical field [0001] The invention belongs to the field of telecommunication and digital information communication, and in particular relates to a method for recording and storing the computing process of a mobile host node in a fault-tolerant wireless mobile computing system, the event log content and the partial order dependency relationship between the event logs. Background technique [0002] The continuous development of high-performance computing, Internet, distributed computing, wireless communication, ubiquitous computing and cloud computing has greatly promoted the application of mobile computing technology. Different from traditional fixed wired distributed computing systems, mobile computing systems have the characteristics of temporary construction, autonomy, mobility, peer-to-peer and topology variability, and have broad development prospects. The mobile computing system m-MSS-m model system is composed of a series of mobile host nodes and static mobile suppor...

AI Technical Summary

Problems solved by technology

The fault tolerance mechanism designed for faulty process rollback recovery takes advantage of the functions of the middle manager of the mobile support station, and uses structural forms such as look-ahead graphs to record and store the content of the process event log of the local service group mobile host node and the partial order relationship between the event log. However, due to maintenance management The operation of structural forms such as look-ahead graphs is too complicated, and the fault-tolerance overhead during the fault-free operation of the calculation process is relatively large

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