Title :
Distribution and persistence in multiple and heterogeneous address spaces
Author :
Ferreira, Paulo ; Shapiro, Marc
Author_Institution :
Project SOR, Inst. Nat. de Recherche d´´Inf. et d´´Autom., Le Chesnay, France
Abstract :
We present the design of a flexible architectural model that supports clustering, storing, naming, and accessing objects in a large scale distributed system. The system is logically divided in zones, i.e., groups of machines with an homogeneous address space organization. Both uniform (64-bit) zone-wide and partitioned (32 or 64-bit) address space organizations are supported. For clustering purpose objects are allocated within segments. Segments are logically grouped into bunches. Each bunch has a user-level bunch manager implementing the policies related to persistence and distribution specific to the bunch´s data: allocation, garbage collection, mapping and un-mapping, function shipping or data shipping, shared data consistency, migration, etc. Objects are referenced by maillons and SSP (stub-scion pair) chains. These mechanisms are scalable and are well adapted to support distributed garbage collection, migration and compaction
Keywords :
data integrity; object-oriented programming; storage management; clustering; data shipping; flexible architectural model; function shipping; garbage collection; heterogeneous address spaces; large scale distributed system; multiple address spaces; naming; persistence; shared data consistency; storing; Broadcasting; Compaction; Costs; Delay; Electronic mail; Kernel; Large-scale systems; Operating systems; Programming profession; Space cooling;
Conference_Titel :
Object Orientation in Operating Systems, 1993., Proceedings of the Third International Workshop on
Conference_Location :
Asheville, NC
Print_ISBN :
0-8186-5270-5
DOI :
10.1109/IWOOOS.1993.324924
