A Lightweight and Cooperative Multifactor Considered File Replication Method in Structured P2P Systems

2013 ◽  
Vol 62 (11) ◽  
pp. 2115-2130 ◽  
Author(s):  
Haiying Shen ◽  
Guoxin Liu
Keyword(s):  
P2p Systems ◽  
Replication Method ◽  
File Replication

RRSD: A file replication method for ensuring data reliability and reducing storage consumption in a dynamic Cloud-P2P environment

2019 ◽  
Vol 100 ◽  
pp. 844-858 ◽  
Author(s):  
ShengYao Sun ◽  
WenBin Yao ◽  
BaoJun Qiao ◽  
Ming Zong ◽  
Xin He ◽  
...  
Keyword(s):  
Data Reliability ◽  
Replication Method ◽  
File Replication

A Replication Algorithm Considering the Node Traffic for P2P Networks

2013 ◽  
Vol 339 ◽  
pp. 285-291
Author(s):  
Yong Qiong Zhu ◽  
Rui Min Hu
Keyword(s):  
Success Rate ◽  
Peer To Peer ◽  
P2p Network ◽  
Search Efficiency ◽  
P2p Networks ◽  
P2p Systems ◽  
Replication Method ◽  
Hit Rate ◽  
Unstructured P2p Network ◽  
Unstructured P2p

In this paper we focus on replication method in unstructured Peer-to-Peer (P2P) networks. Most current replication approaches are designed for the structured P2P systems. The EAD is specific for the unstructured P2P network, but the replica utilization is low and has the bump problem. In order to acquire more replica utilization and search efficiency, we propose a decentralized replication methodsFTR. The proposed algorithm can calculate the real query flow of node according to the order of the node selected. Experiment on the simulation proves that our method can enhance search success rate and replica hit rate.

scholarly journals EARM: An Efficient and Adaptive File Replication with Consistency Maintenance in P2P Systems

2012 ◽  
pp. 5-9
Author(s):  
K. V. K. Chaitanya ◽  
S. Vasundra
Keyword(s):  
System Performance ◽  
Low Cost ◽  
Time Varying ◽  
Consistency Maintenance ◽  
P2p Systems ◽  
Maintenance Mechanism ◽  
Query Efficiency ◽  
Simulation Results ◽  
File Replication ◽  
Message Propagation

In p2p systems, file replication and replica consistency maintenance are most widely used techniques for better system performance. Most of the file replication methods replicates file in all nodes or at two ends in a clientserver query path or close to the server, leading to low replica utilization, produces unnecessary replicas and hence extra consistency maintenance overhead. Most of the consistency maintenance methods depends on either message spreading or structure based for update message propagation without considering file replication dynamism, leading to inefficient file update and outdated file response. These paper presents an Efficient and Adaptive file Replication and consistency Maintenance (EARM) that combines file replication and consistency maintenance mechanism that achieves higher query efficiency in file replication and consistency maintenance at a low cost. Instead of accepting passively file replicas and updates, each node determines file replication and update polling by adapting to time-varying file query and update rates. Simulation results demonstrate the effectiveness of EARM in comparison with other approaches.

Replication of Wet Objects and Cells

1974 ◽  
Vol 32 ◽  
pp. 102-103
Author(s):  
S. Basu ◽  
D. F. Parsons
Keyword(s):  
Water Vapor Pressure ◽  
High Vacuum ◽  
Polystyrene Latex ◽  
Vacuum System ◽  
Saturated Water Vapor ◽  
Replication Method ◽  
New Methods ◽  
Saturated Water ◽  
Water Vapors ◽  
Intermediate Chamber

We are approaching the invasiveness of cancer cells from the studies of their wet surface morphology which should distinguish them from their normal counterparts. In this report attempts have been made to provide physical basis and background work to a wet replication method with a differentially pumped hydration chamber (Fig. 1) (1,2), to apply this knowledge for obtaining replica of some specimens of known features (e.g. polystyrene latex) and finally to realize more specific problems and to improvize new methods and instrumentation for their rectification. In principle, the evaporant molecules penetrate through a pair of apertures (250, 350μ), through water vapors and is, then, deposited on the specimen. An intermediate chamber between the apertures is pumped independently of the high vacuum system. The size of the apertures is sufficiently small so that full saturated water vapor pressure is maintained near the specimen.

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