Efficient Model for Replica Consistency Maintenance in Data Grids

2008 ◽  
Author(s):  
Xun-yi Ren ◽  
Ru-chuan Wang ◽  
Qiang Kong
Keyword(s):  
Data Grids ◽  
Consistency Maintenance ◽  
Replica Consistency

Scalable and dynamic replica consistency maintenance for edge-cloud system

2019 ◽  
Vol 101 ◽  
pp. 590-604 ◽  
Author(s):  
Chunlin Li ◽  
Chengyi Wang ◽  
Hengliang Tang ◽  
Youlong Luo
Keyword(s):  
Cloud System ◽  
Consistency Maintenance ◽  
Replica Consistency

Improvement on Reading and Writing for Replica Consistency

2011 ◽  
Vol 187 ◽  
pp. 232-236
Author(s):  
Xun Yi Ren ◽  
Ru Chuan Wang ◽  
Xiao Dong Ma
Keyword(s):  
Experimental Results ◽  
Master Node ◽  
Data Grids ◽  
Reading And Writing ◽  
Consistency Management ◽  
Proposed Model ◽  
Replica Consistency

Maintaining consistency among replicas is an important technique for improving the efficiency of data grids. In order to improve replica consistency management, one fast reading and writing method is proposed, where two update algorithms is applied to accelerate Maintaining consistency among replicas. The first layer is synchronization writing form one peer to many peers at the same time, thus avoiding repeat read and writing of replica from the primary node. In second algorithm the node with good bandwidth is elected as new master node to enlarge the number of concurrent update streams. The experimental results show that the proposed model can reduce complete time compared with lazy copy, positive copy in some scenes.

scholarly journals Optimization of Replica Consistency and Conflict Resolution in Data Grid Environment

2019 ◽  
Vol 4 (6) ◽  
pp. 1420-1433
Author(s):  
Priyanka Vashisht ◽  
Vijay Kumar ◽  
Rajesh Kumar ◽  
Anju Sharma
Keyword(s):  
Conflict Resolution ◽  
Hybrid Approach ◽  
Data Replication ◽  
Quality Data ◽  
Data Grids ◽  
Grid Environment ◽  
Agent Based ◽  
Efficient Access ◽  
Vector Clock ◽  
Replica Consistency

Data replication is widely used mechanism aiming at ensuring efficient access, improving performance and providing quality data in data grids. The properties of file and their replicas can vary with time resulting to inconsistency. In this paper, an agent-based replica consistency approach, namely, Replica Consistency and Conflict Resolution (RCCR) has been proposed to improve the efficiency of the system. RCCR is hybrid approach which is used to address the problem of inconsistency in multi master environment. Additionally, the conflict resolution approach is introduced based on vector clock and version of the replica. Finally, simulated results are presented and compared with existing consistency approaches such as Pessimistic, Optimistic and One-way Replica Consistency (ORCS). The simulated results depicts that proposed RCCR approach performs better when writeable replicas are more likely to occur.

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