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Commit Protocols in Mobile Environments: Design & Implementation

Salman Abdul Moiz, Lakshmi Rajamani, Supriya N.Pal
2010 International Journal of Database Management Systems  
To show the effectiveness of the commit protocols in mobile environments, a simulator is designed and implemented to demonstrate how the transactions are committed and how the data consistency is maintained  ...  As disconnections and mobility are the common characteristics in mobile environment, preserving consistency in presence of concurrent access is a challenging issue.  ...  The design and implementation of the optimistic commit protocol is presented in this chapter.  ... 
doi:10.5121/ijdms.2010.2310 fatcat:cvrntc7zxzgbxgmbvg26umc5ya

Concurrency Control in Mobile Environments: Issues & Challenges

Salman Abdul Moiz, Supriya N.Pal, Jitendra Kumar, Lavanya, Deepak Chandra Joshi, Venkataswamy
2011 International Journal of Database Management Systems  
The design requirement for preserving isolation property in mobile environments is also presented.  ...  This paper analyzes and compares various concurrency control strategies in mobile environments proposed in literature.  ...  Issues & challenges Optimistic commit protocol can be implemented for transaction processing in mobile environments.  ... 
doi:10.5121/ijdms.2011.3411 fatcat:b2innmhqsjhmnay25t424ynhvm

A Concurrency Control Method Based on Commitment Ordering in Mobile Databases

Ali Karami, Ahmad Baraani Dastjerdi
2011 International Journal of Database Management Systems  
Applying pessimistic common classic methods of concurrency control (like 2pl) in mobile database leads to long duration blocking and increasing waiting time of transactions.  ...  In other to checking commitment ordering property of scheduler, the assigned timestamp is used in server on time of commitment.  ...  This leads to inefficiency of pessimistic protocols in mobile environment. In optimistic protocols, no continuous connection between client and server is required.  ... 
doi:10.5121/ijdms.2011.3404 fatcat:zt4npanzafhwvn2hxnxlwhpa2u

Transaction Processing, Techniques In Mobile Database: An Overview

Adil Mobarek, Siddig Abdelrhman, Areege Abdel-Mutal, Sara Adam, Nawal Elbadri, Tarig Mohammed Ahmed
2015 International Journal on Computational Science & Applications  
of mobile environment, transaction is the center component in database systems, In this paper we present useful work done in mobile transaction, we show the mobile database environment and overview a  ...  The advancement in mobile technology and wireless network increase the using of mobile device in database driven application, these application require high reliability and availability due to nature inheritance  ...  The mobility of MH and other wireless limitation affects the commitment of mobile transactions, there are special protocols used in mobile environment for mobile transaction commitment.  ... 
doi:10.5121/ijcsa.2015.5101 fatcat:xzwqrpsguvhvbbxfkrhsx7kuwy

A study on the management of semantic transaction for efficient data retrieval

Shi Ming Huang, Irene Kwan, Chih He Li
2002 SIGMOD record  
Mobile computing technology is developing rapidly due to the advantages of information access through mobile devices and the need to retrieve information at remote locations.  ...  One of the most significant of these issues is the speed of data retrieval, which directly affects the performance of mobile database applications.  ...  NSC 90-2213-E194-006 has supported the work presented in this paper. We greatly appreciate their financial support and encouragement.  ... 
doi:10.1145/601858.601863 fatcat:su25px4ru5cnpcqrku5hvitcoy

Meaningful Metrics for Evaluating Eventual Consistency [chapter]

João Barreto, Paulo Ferreira
2010 Lecture Notes in Computer Science  
Optimistic replication is a fundamental technique for supporting collaborative work practices in mobile environments.  ...  Using results from a simulated environment of relevant optimistic replication protocols, we show that each metric hides previously undocumented side effects.  ...  We ran C# implementations of Primary, Basic WV and VVWV side-byside in a simulated environment.  ... 
doi:10.1007/978-3-642-15291-7_47 fatcat:uet3htrg5nh27hqtppqqs5louy

A Survey on Data and Transaction Management in Mobile Databases

D Roselin Selvarani
2012 International Journal of Database Management Systems  
The survey focuses on the complete study on the various types of Architectures used in Mobile databases and Mobile Transaction Models.  ...  It also addresses the data management issues namely Replication and Caching strategies and the transaction management functionalities such as Concurrency Control and Commit protocols, Synchronization,  ...  Concurrency Control and Commit Protocols Many valuable attempts were made to implement the concurrency control strategies in mobile environment.  ... 
doi:10.5121/ijdms.2012.4501 fatcat:hz6dj72yrzev3cvfdqkphlmmci

A lazy commit protocol for mobile transactions

Sharvanath Pathak, Gautam Barua
2014 2014 IEEE International Advance Computing Conference (IACC)  
With an increasing use of mobile and hand-held computing devices, there is a need for new algorithms for data and transaction management in mobile environments.  ...  In this work we present a mobile transaction management protocol, which employs a lazy commit strategy to minimize the bandwidth utilization and the frequency of communication.  ...  Perhaps the single biggest disadvantage of this approach is, aborting and redoing a transaction is very costly in mobile environments. • Pessimistic approaches which lock the data items and locally commit  ... 
doi:10.1109/iadcc.2014.6779363 fatcat:qywe2g2qsnekdgmoewiwdubumm

On the design of perturbation-resilient atomic commit protocols for mobile transactions

Brahim Ayari, Abdelmajid Khelil, Neeraj Suri
2011 ACM Transactions on Computer Systems  
In this paper, we comprehensively consider and classify the perturbations of the wireless infrastructure-based mobile environment according to their impact on the outcome of commit protocols and on the  ...  On the other hand frequent node and link failures complicate the design of atomic commit protocols by increasing both the transaction abort rate and resource blocking time.  ...  Section 4 lists the major design requirements and issues of resilient atomic commit protocols for mobile transactions in the considered mobile environment.  ... 
doi:10.1145/2003690.2003691 fatcat:frap5kgxzvaivm5ndhso6evjbm

A Strategy to prioritize the waiting transactions to achieve Concurrency Control in Mobile Environments

Salman Abdul Moiz
2018 International Journal for Research in Applied Science and Engineering Technology  
The inherent features of mobile environments makes concurrency control in mobile environments a challenging problem.  ...  Pessimistic concurrency control mechanisms may not be suitable in mobile database environments as the wireless devices are prone to disconnections and mobility.  ...  DHP-2PL [3] is a locking protocol based on high priority two phase locking to achieve concurrency control in mobile environments.  ... 
doi:10.22214/ijraset.2018.1060 fatcat:b3atxmeg4rczraufmk5zws3itu

Mobile Data availability Similarity between Cooperative Caching and Replication

Sallam O Fageeri
2012 IOSR Journal of Computer Engineering  
of data access for users operates in mobile environments.  ...  This paper review a designed method which led to support data availability using data replication and data caching in mobile environment to improving the availability of data and enhancing the performance  ...  A new replication designed to improve consistency of replication in mobile database , the replication strategy consist of three level replication architecture and wheel-based updates propagation protocol  ... 
doi:10.9790/0661-0140913 fatcat:ggvq2s5jtffljk3xs3qcrhqbey

Replication Management and Optimistic Replication Challenges in Mobile Environment

Archana Sharma, Vineet Kansal
2011 International Journal of Database Management Systems  
This paper explores the various replication strategies, replication in mobile environment, benefits and challenges of optimistic replication in mobile applications.  ...  Replication is a fundamental technique for supporting concurrent work practices in mobile environments.  ...  However , pessimistic approaches are not suitable for mobile environments, because they are built for environments in which the communication is stable and hosts have well known locations.  ... 
doi:10.5121/ijdms.2011.3407 fatcat:zvsq2x3xjbclbf42oby75zorwi

A Systematic Review of Fault Tolerance in Mobile Agents

Bassey Echeng Isong
2013 American Journal of Software Engineering and Applications  
Therefore, our objective in this systematic literature review (SR) is to explore and analyze the existing fault tolerance implementations in order to bring about the state-of-the-art and the challenges  ...  The implication of the study is to give a clear direction to future researchers in this area for a better reliable and transparent fault tolerance in mobile agents.  ...  Protocols under this category include the pessimistic and optimistic logging protocol [7] .  ... 
doi:10.11648/j.ajsea.20130205.11 fatcat:a34pch6a6jgd5fcucxgaup5lge

Asynchronous Checkpointing And Optimistic Message Logging For Mobile Ad Hoc Networks

Ruchi Tuli, Parveen Kumar
2011 International Journal of Advanced Computer Science and Applications  
In recent years the advancements in wireless communication technology and mobile computing fueled a steady increase in both number and types of applications for wireless networks.  ...  In this paper, we present a message logging protocol well-suited to provide fault tolerance for cluster federations in mobile ad hoc networks.  ...  environment and also in ad hoc environments.  ... 
doi:10.14569/ijacsa.2011.021011 fatcat:7emcoi3frbbi3h4zjyub6zifua

Middleware extensions that trade consistency for availability

Mikael Asplund, Simin Nadjm-Tehrani, Klemen Zagar
2009 Concurrency and Computation  
The experiments clearly illustrate the benefit of our protocols in terms of significantly higher availability and number of performed operations.  ...  The general approach has been illustrated by implementing a number of CORBA extensions that trade consistency for availability during network partitions.  ...  The development of the CORBA architecture was a team effort and included work by the members of the team at ITI the support of which is gratefully acknowledged.  ... 
doi:10.1002/cpe.1383 fatcat:dprfi53fizditmbum2ikxrfuau
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