The Research on Dynamic Replication and Placement of File Using Dual-Threshold Dynamic File Migration Algorithm

2008 ◽  
Author(s):  
Xiuyan Guo ◽  
Jun Li ◽  
Jian Yang ◽  
Jinlin Wang
Keyword(s):  
Dynamic Replication ◽  
File Migration

scholarly journals State Management for Cloud-Native Applications

Electronics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 423
Author(s):  
Márk Szalay ◽  
Péter Mátray ◽  
László Toka
Keyword(s):  
Large Scale ◽  
Distributed Databases ◽  
Access Time ◽  
Replica Placement ◽  
State Management ◽  
Placement Decisions ◽  
Dynamic Replication ◽  
Cloud Databases ◽  
Placement Algorithm ◽  
The One

The stateless cloud-native design improves the elasticity and reliability of applications running in the cloud. The design decouples the life-cycle of application states from that of application instances; states are written to and read from cloud databases, and deployed close to the application code to ensure low latency bounds on state access. However, the scalability of applications brings the well-known limitations of distributed databases, in which the states are stored. In this paper, we propose a full-fledged state layer that supports the stateless cloud application design. In order to minimize the inter-host communication due to state externalization, we propose, on the one hand, a system design jointly with a data placement algorithm that places functions’ states across the hosts of a data center. On the other hand, we design a dynamic replication module that decides the proper number of copies for each state to ensure a sweet spot in short state-access time and low network traffic. We evaluate the proposed methods across realistic scenarios. We show that our solution yields state-access delays close to the optimal, and ensures fast replica placement decisions in large-scale settings.

Dynamic replication algorithms for the multi-tier Data Grid

2005 ◽  
Vol 21 (5) ◽  
pp. 775-790 ◽  
Author(s):  
Ming Tang ◽  
Bu-Sung Lee ◽  
Chai-Kiat Yeo ◽  
Xueyan Tang
Keyword(s):  
Data Grid ◽  
Dynamic Replication

Coarse-grain replica management strategies for dynamic replication of Web contents

2004 ◽  
Vol 45 (1) ◽  
pp. 19-34 ◽  
Author(s):  
Norihito Fujita ◽  
Yuichi Ishikawa ◽  
Atsushi Iwata ◽  
Rauf Izmailov
Keyword(s):  
Management Strategies ◽  
Coarse Grain ◽  
Dynamic Replication ◽  
Web Contents ◽  
Replica Management

SEMI-STATIC HEDGING OF BARRIER OPTIONS UNDER POISSON JUMPS

2011 ◽  
Vol 14 (07) ◽  
pp. 1091-1111 ◽  
Author(s):  
PETER CARR
Keyword(s):  
Barrier Options ◽  
Barrier Option ◽  
Poisson Jumps ◽  
Classical Dynamic ◽  
Continuous Processes ◽  
Static Hedging ◽  
Dynamic Replication ◽  
Independent Process ◽  
The Difference ◽  
Riskless Asset

We show that the payoff to barrier options can be replicated when the underlying price process is driven by the difference of two independent Poisson processes. The replicating strategy employs simple semi-static positions in co-terminal standard options. We note that classical dynamic replication using just the underlying asset and a riskless asset is not possible in this context. When the underlying of the barrier option has no carrying cost, we show that the same semi-static trading strategy continues to replicate even when the two jump arrival rates are generalized into positive even functions of distance to the barrier and when the clock speed is randomized into a positive continuous independent process. Since the even function and the positive process need no further specification, our replicating strategies are also semi-robust. Finally, we show that previous results obtained for continuous processes arise as limits of our analysis.

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