CLBS-3: A Three-Tier Load Balancer for ensuring Fault-Tolerance of Software running in Open-Source Cloud

Abstract

High availability and low service expenditure has enabled cloud computing to become popular to be used in providing large number of software services. However, supporting a large collection of software together with data storage present new threats to the cloud in terms load imbalance and service failures. This paper proposes CLBS-3, a threetier Load balancing Schema (LBS) for the cloud preserving low communication overhead and fault tolerance. Next, it provides a mechanism to recover from a failed condition and excessive load within short time and low network traffic. Performance analysis reveal desirable service delivery speed of 11.40 to 84.43 seconds. Also the less time taken to recover from a failure ensures that the service is consistent and reliable. The experimentation of the proposed framework on cloud platform with web enabled software services yield desirable performance.