International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 04 | Apr -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
METHODS TO IMPROVE DATA REPLICATION PROCESS IN ONLINE SOCIAL NETWORK Supriya F. 1
2
Department of Computer Science and Engineering, Government College of Engineering, Amravati, Maharashtra, India. , Department of Information Technology, Government College of Engineering, Amravati, Maharashtra, India.
--------------------------------------------------------------------------------------------------------------------------------provide more efficient and secure data to the user. The Abstract – Online social networks make it more
replication of data is on the basis of user interaction and their interest. Some important facts are found in the study that; peoples spend their most of the time on online social networking sites, most probably people shares only those files that they are interested in and users also don’t like to provide faulty files to their socially close friends. As if user provide faulty file to their friend then it will lead to degrade their reputation in their social communities. Replication means taking a complete copy of user data to another system, usually at a separate geographical recovery location. This means you have a backup of your data you can use this stored file if the primary copy of file fails. This replicated copy can also be used for other things like off-site backup, load testing. The replication can happen in all sorts of different places and the replication is configured and managed by the controllers of the storage providers. It can work at the application level, where replication is configured and set up between your host and storage system and virtualises your storage. That brings benefits in that the make and model of storage array at either end can be different so you're not confined to using the same model at both ends. The last place it can happen is at the host server level, and that gives you greater flexibility in allowing replication between different types of storage at both ends. In that model the software or the operating system controls the replication between two different servers at two different sites and the replication is over IP links.
suitable for people to search and communicate with other people based on their shared interests, ideas, association with different groups, etc. Common social networks such as Facebook and Twitter have millions of users spread all around the world sharing interconnected data. Users always demand for low latency access for themselves and also for their friends e.g. videos, pictures etc. In this paper, we proposed various data replication methods in online social network that enforces data availability to prevent data transfer and also exploits data replications to develop overall system performance. Among these methods we have proposed a method of remote replication which is efficient in the data replication. In recent years online social network model are having datacenters that are worldwide distributed which helps to decrease the service latency which causes higher inter-datacenter communication load. Key Words: Online social networks, Distributed storage, Data replication, Load balancing, methods.
1. INTRODUCTION
Nowadays many data-intensive applications and high performance applications are emerging. A traditional storage facility is not able to provide the complete data storage. The main problem in such systems is of distributing and locating method of various data objects. This kind of method deals with a problem of distributing and locating data, which has given an identifier file, such as how to find data location between thousands of storage devices. This will be done according to availability, scalability, user experience, and resource utilization of the system. Facebook is a most common and most visited online social network. It has more than a billion monthly active users who are interconnected through network. Recently, Facebook have gained major popularity in online social network. Firstly users create their personal profile and then they can send friend request to various users which leads to communication between many users situated at different places in the network. In this paper, we propose various methods for data replication in online social network. But the main is to focus on remote data replication technique and to
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2. DATA REPLICATION TECHNIQUES
Learn how remote replication fits into a disaster recovery plan, as well as the various data replication methods available, such as host-based, array-based and network-based replication.
2.1 Remote replication
Remote replication is a well-established practice that can replace traditional backup and enhance disaster recovery planning. But, remote replication can be deployed in a variety of ways, so what data replication methods are available Remote replication copies data to a secondary site as part of a disaster recovery plan; it traditionally involved
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