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Comparison of Concurrency Control and Deadlock Handing in Different OODBMS

Sonal Kanungo, Dr. R. D. Morena
2016 International Journal of Engineering Research and  
These applications are characterized by having complex data model. Object databases are very good at storing the complex data model. Many applications can runs efficiently with many concurrent users.  ...  The purpose of this paper is to explore various techniques that can be used in object oriented databases to achieve high concurrency.  ...  locking, restart-oriented locking methods, and optimistic concurrency control.  ... 
doi:10.17577/ijertv5is050615 fatcat:hdf5ffb665efzlwggeakf4luku

Design, Implementation and Performance Analysis of Concurrency Control Algorithm with Architecture for Temporal Database

Jaypalsinh A. Gohil, Prashant M. Dolia
2016 International Journal of Database Management Systems  
The scope of research involves design, implementation, experimental study and performance analysis of proposed algorithm in comparison with pessimistic and optimistic concurrency control mechanisms.  ...  Concurrency situation is not desirable for time dependent and time critical large database applications; it must be efficiently controlled and managed to ensure consistency of database system.  ...  The paper also highlights comparative performance analysis of concurrency control methods applicable to standard locking, restart-oriented locking methods and optimistic concurrency control approach with  ... 
doi:10.5121/ijdms.2016.8503 fatcat:3yqsu5vnajdn7clij5eim5u6ea

Real time groupware as a distributed system

Saul Greenberg, David Marwood
1994 Proceedings of the 1994 ACM conference on Computer supported cooperative work - CSCW '94  
Traditional concurrency control methods cannot be applied directly to groupware because system interactions include people as well as computers.  ...  The paper considers both human and technical considerations that designers should ponder before choosing a particular concurrency control method.  ...  ACKNOWLEDGMENTS This research was supported by the National Sciences and Engineering Research Council of Canada through its strategic and operating grant program.  ... 
doi:10.1145/192844.193011 dblp:conf/cscw/GreenbergM94 fatcat:fx2fdqsonvcfxkybbzgd6mkt7a

Performance of Distributed Optimistic Concurrency Control in Real-Time Databases [chapter]

Jan Lindström
2004 Lecture Notes in Computer Science  
Because optimistic concurrency control is promising candidate for real-time database systems, distributed optimistic concurrency control methods are discussed more detailed way.  ...  We propose a new distributed optimistic concurrency control method, demonstrate that proposed method produces a correct results and proposed method is evaluated and tested in prototype implementation of  ...  Study have focused on distributed optimistic concurrency control methods, because optimistic concurrency control has been shown to be applicable to real-time database systems.  ... 
doi:10.1007/978-3-540-30561-3_26 fatcat:bttdfr5rybfo5b63xtlryumnsq

An Efficient Merged Concurrency Control Method for Concurrency Conflicts

Qiao SUN, Lan-mei FU, Bu-qiao DENG, Jia-song SUN
2017 DEStech Transactions on Computer Science and Engineering  
Traditional distributed transaction protocol typically included two-phase locking (2PL) or optimistic concurrency control (OCC).  ...  In this paper, we propose one merged concurrency control method in the distributed single transaction to support for conflicts more efficiently.  ...  To solve this problem, the Optimistic Concurrency Control method defined to be that if the degree of each transaction concurrency conflicts system is very low (means most of transactions can be smoothly  ... 
doi:10.12783/dtcse/cmee2016/5313 fatcat:uuxagy3hnrgzrg255r37aik5ky

A Concurrency Control Method Based on Commitment Ordering in Mobile Databases

Ali Karami, Ahmad Baraani Dastjerdi
2011 International Journal of Database Management Systems  
In this article, OPCOT concurrency control algorithm is introduced based on optimistic concurrency control method.  ...  Disconnection of mobile clients from server, in an unclear time and for an unknown duration, due to mobility of mobile clients, is the most important challenges for concurrency control in mobile database  ...  Hybrid concurrency control protocol of [15] is consisted of optimistic concurrency control protocol and the method based on lock.  ... 
doi:10.5121/ijdms.2011.3404 fatcat:zt4npanzafhwvn2hxnxlwhpa2u

Comparison and an Improved Validation Optimistic Approach for Concurrency Control

Monika Patel, Dhiren B. Patel
2019 International Journal of Scientific Research in Computer Science Engineering and Information Technology  
Devising an efficient concurrency control technique is challenging.  ...  The concurrency control in order to improve optimistic validation method with the traditional techniques, a new technique has been proposed.  ...  This method was developed as an extension of the optimistic method proposed by Kung and Robinson [3] .  ... 
doi:10.32628/cseit19517 fatcat:koepag23trh5nho4kt2bsns65q

Graphical Representation of Optimistic Locking and Concurrency Control for Temporal Database using Oracle 12c Enterprise Manager

Jaypalsinh A., Prashant M.
2016 International Journal of Computer Applications  
Through step by step graphical representation this study highlights how to acquire and release an optimistic lock on data objects in case of conflict.  ...  Our study focus on implementation of optimistic lock through trigger on data objects of temporal database to resolve the conflicts among multiple user sessions.  ...  The optimistic concurrency control method differs since; detection of conflicts and their resolution are deferred until committed.  ... 
doi:10.5120/ijca2016911214 fatcat:rg3ij2wh7fgbxhbqlvnlrwapoy

Transparent recovery in distributed systems (position paper)

David F. Bacon
1991 ACM SIGOPS Operating Systems Review  
Optimistic recovery also does not perform atomic updates over multiple sites; however, since optimistic recovery is not doing concurrency control, atomicity is not generally an issue.  ...  We are investigating issues in concurrency control and how the problems of recovery and concurrency control can be solved independently in such a manner that either or both could be incorporated as needed  ... 
doi:10.1145/122120.122130 fatcat:oqx6kjmkwfcfhiqi42mvoo3o5m

Transparent recovery in distributed systems

David F. Bacon
1990 Proceedings of the 4th workshop on ACM SIGOPS European workshop - EW 4  
Optimistic recovery also does not perform atomic updates over multiple sites; however, since optimistic recovery is not doing concurrency control, atomicity is not generally an issue.  ...  We are investigating issues in concurrency control and how the problems of recovery and concurrency control can be solved independently in such a manner that either or both could be incorporated as needed  ... 
doi:10.1145/504136.504150 dblp:conf/sigopsE/Bacon90 fatcat:p7izdvqcgjfspeeqsghlweagou

Performance Comparison of Distributed Object Server Implementation

Petr Kroha, Mathias Kurth, Michael Fleischer
2007 International Conference on Information System Implementation and Modeling  
Then we compare performance and speed-up of a CORBA-and an AspectC++-implementation of a distributed object server for pessimistic and optimistic concurrency control.  ...  First, we briefly explain our version of optimistic concurrency control and load balance.  ...  In section 3 we briefly explain which cross-cutting concepts of concurrency we modelled as aspects in our proposed and implemented optimistic concurrency control method.  ... 
dblp:conf/isim/KrohaKF07 fatcat:2s5loybzqjgp5mvnbbexatiedq

On optimistic methods for concurrency control

H. T. Kung
1981 ACM Transactions on Database Systems  
In this paper, two families of nonlocking concurrency controls are presented.  ...  Most current approaches to concurrency control in database systems rely on locking of data objects as a control mechanism.  ...  In Section 6 we analyze the application of optimistic methods to controlling concurrent insertions in B-trees. Section 7 contains a summary and a discussion of future research.  ... 
doi:10.1145/319566.319567 fatcat:ps5xuxmhk5f67mm4dngh2u3wbm

An overview of Concurrency Control Techniques in Distributed Database

Rajdeep Singh Solanki
2018 International Journal for Research in Applied Science and Engineering Technology  
However, there is some complexity when attempting to manage and control distributed database systems. Concurrency control is an integral part of a database system.  ...  Both types of database share the same problems of access control and transaction management, such as user concurrent access control and deadlock detection and resolution. A.  ...  Advantage and disadvantage of Distributed Optimistic Concurrency Control There are many advantage and disadvantage when using optimistic concurrency methods in distributed systems.  ... 
doi:10.22214/ijraset.2018.1194 fatcat:l73rfpnexrfedaewu5coooiepi

Analysis and Comparison of Concurrency Control Techniques
IJARCCE - Computer and Communication Engineering

Sonal kanungo, morena rustom. D
2015 IJARCCE  
The techniques to ensure this consistency are concurrency control techniques. All concurrency-control schemes are based on the serializability property.  ...  We have simulated the current environment and have analysis the performance of each of these methods.  ...  Robinson [5] (On Optimistic Methods for Concurrency Control) In this paper, two families of non-locking concurrency controls are presented.  ... 
doi:10.17148/ijarcce.2015.4360 fatcat:l7cfqkcww5ax5pds7uite4usmi

Mixed concurrency control: Dealing with heterogeneity in distributed database systems

Jean-François Pons, Jean-François Vilarem
1988 Very Large Data Bases Conference  
In this paper we propose a method which seems well adapted to the majority of the forms of heterogeneity, by using dynamic calculation of a serialization order and concurrent control of all types of transactions  ...  -In the case of dynamic heterogeneity, the strategy used by each site can vary in the course of time between a pessimistic technique and an optimistic one.  ...  Using the concurrent method, we must enforce additional control in order to consider locally controlled optimistic transactions.  ... 
dblp:conf/vldb/PonsV88 fatcat:toxjle2td5g6tlwoywwnhmb2mu
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