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Web server load balancing using SSL back-end forwarding method

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4 Author(s)
Suresh, V.M. ; Dept. of Inf. & Technol., EGS Pillay Eng. Coll., Nagapattinam, India ; Karthikeswaran, D. ; Sudha, V.M. ; Chandraseker, D.M.

The application server handles dynamic and sensitive Web contents that need protection from eavesdropping, tampering, and forgery. Although the Secure Sockets Layer (SSL) is the most popular protocol to provide a secure channel between a client and a cluster-based network server, its high overhead degrades the server performance considerably and, thus, affects the server scalability. Therefore, improving the performance of ssl-enabled network servers is critical for designing scalable and high-performance data centers. In this project the impact of ssl offering is examined and ssl-session-aware distribution in cluster-based network servers. In a back-end forwarding scheme, called ssl with bf which employs a low-overhead user-level communication mechanism like Virtual Interface Architecture (VIA) which is used to achieve a good load balance among server nodes. To compare the three distribution models for network servers, Round Robin (RR), ssl_with_session, and ssl_with_bf, through simulation. The experimental result with 16-node and 32-node cluster configurations shows that, although the session reuse of ssl_with_session is critical to improve the performance of application servers. The proposed back-end forwarding scheme can further enhance the performance due to better load balancing. The ssl_with_bf scheme can minimize the average latency by about 40 percent and improve throughput across a variety of workloads.

Published in:

Advances in Engineering, Science and Management (ICAESM), 2012 International Conference on

Date of Conference:

30-31 March 2012