Title :
Consistency of partitionable object groups in a CORBA framework
Author :
Narasimhan, P. ; Moser, L.E. ; Melliar-Smith, P.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
The Eternal system provides a novel methodology for the consistent replication of objects in an adaptive, fault-tolerant, CORBA-compliant distributed system that is susceptible to partitioning. Passive and active replication schemes are supported in Eternal, and mechanisms are provided for the interaction of objects with different replication schemes. Nested operations for both passive and active objects are accommodated. Suppression of duplicate operations is ensured by unique message and operation identifiers. Continued operation is allowed in all components of a partitioned system. State transfer mechanisms and fulfillment operations restore the consistency of the states of replicas within the components of a partitioned system when communication is reestablished and the components remerge
Keywords :
adaptive systems; client-server systems; fault tolerant computing; object-oriented methods; Eternal system; Totem system; active replication scheme; adaptive fault-tolerant CORBA-compliant distributed system; communication reestablishment; consistent replication; continued operation; duplicate operations suppression; fulfilment operations; message identifiers; nested operations; operation identifiers; partitionable object groups; passive replication scheme; replica state consistency; state transfer mechanisms; Adaptive systems; Application software; Distributed computing; Fault tolerance; Fault tolerant systems; Maintenance; Middleware; Multicast protocols; Operating systems; Sun; Telecommunication network reliability;
Conference_Titel :
System Sciences, 1997, Proceedings of the Thirtieth Hawaii International Conference on
Conference_Location :
Wailea, HI
Print_ISBN :
0-8186-7743-0
DOI :
10.1109/HICSS.1997.667205
