Data Sharing Dynamically for Balancing Cloud Server

Machiraju Rajya Lakshmi, T.V. Sai Krishna

Abstract


The load rebalancing problem in cloud computing. The main objective of the paper is to Enhance distributed load rebalancing algorithm to cope with the load imbalance factor, movement cost, and algorithmic overhead. The load rebalance algorithm is compared against a centralized approach in a production system and the performance of the proposal implemented in the Hadoop distributed file system for cloud computing applications. The cloud applications process large amount of data to provide the desired results. Data volumes to be processed by cloud applications are growing much faster than computing power. This growth demands on new strategies for processing and analysing the information. The project explores the use of Hadoop MapReduce framework to execute scientific workflows in the cloud. Cloud computing provides massive clusters for efficient large computation and data analysis. In such file systems, a file is partitioned into a number of file chunks allocated in distinct nodes so that MapReduce tasks can performed in parallel over the nodes to make resource utilization effective and to improve the response time of the job. In large failure prone cloud environments files and nodes are dynamically created, replaced and added in the system due to which some of the nodes are over loaded while some others are under loaded. It leads to load imbalance in distributed file system. To overcome this load imbalance problem, a fully distributed Load rebalancing algorithm has been implemented, which is dynamic in nature does not consider the previous state or behaviour of the system (global knowledge) and it only depends on the present behaviour of the system and estimation of load, comparison of load, stability of different system, performance of system, interaction n between the nodes, nature of load to be transferred, selection of nodes and network traffic. The current Hadoop implementation assumes that computing nodes in a cluster are homogeneous in nature.

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Copyright (c) 2016 Machiraju Rajya Lakshmi, T.V. Sai Krishna

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