Title :
An asynchronous recovery scheme based on optimistic message logging for mobile computing systems
Author :
Park, Taesoon ; Yeom, Heon Y.
Author_Institution :
Dept. of Comput. Eng., Sejong Univ., Seoul, South Korea
Abstract :
This paper presents an asynchronous recovery scheme to provide fault-tolerance for mobile computing systems. The proposed scheme is based on optimistic message logging, since the checkpointing-only schemes are not suitable for the mobile environment in which unreliable mobile hosts and fragile network connection may hinder any kind of coordination for checkpointing and recovery. Also, in order to reduce the overhead imposed on mobile hosts, mobile support stations take charge of logging and dependency tracking, and mobile hosts maintain only a small amount of information for mobility tracking. As a result, truly asynchronous recovery for mobile systems can be achieved with little overhead
Keywords :
fault tolerant computing; message passing; mobile computing; system recovery; wireless LAN; asynchronous recovery scheme; checkpointing-only schemes; dependency tracking; fault-tolerance; fragile network connection; logging; mobile computing; mobility tracking; optimistic message logging; unreliable mobile hosts; Bandwidth; Checkpointing; Computer networks; Computer science; Distributed computing; Fault tolerant systems; Frequency synchronization; Mobile computing; Space stations; Wireless networks;
Conference_Titel :
Distributed Computing Systems, 2000. Proceedings. 20th International Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7695-0601-1
DOI :
10.1109/ICDCS.2000.840956
