Energy Efficient Load Balancing in Web Server Clusters
| Autor: | Misikir Eyob Gebrehiwot, Samuli Aalto, Pasi Lassila |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
ta213
Computer science business.industry Distributed computing 020206 networking & telecommunications Round-robin DNS 02 engineering and technology Energy consumption Network Load Balancing Load balancing (computing) energy-aware load balancing 020202 computer hardware & architecture Network Load Balancing Services Server farm Server 0202 electrical engineering electronic engineering information engineering server cluster green cluster business Efficient energy use Computer network |
| Zdroj: | ITC PhD Workshop |
| DOI: | 10.23919/itc.2017.8065804 |
| Popis: | Data centers consume substantial amounts of energy. Server clusters, being an integral part of data centers, take the largest share. Load balancing policies in server clusters have historically been optimized for performance or simplicity. However, the choice of load balancing policy, together with the power provisioning policy, can greatly impact energy efficiency of a server cluster. In this paper we consider the two widely deployed load balancing policies: the Round-Robin (RR) and Join the Shortest Queue (JSQ) policies, and compare their performance and energy consumption to a simple modification of JSQ (Pack-JSQ). Using mean response time and mean power consumption as metrics, we study these three policies via simulation runs by using publicly available Wikipedia request traces. We show that Pack-JSQ gives superior energy efficiency without compromising performance when deployed with a simple power provisioning policy that controls the number of running servers based on request arrival rate information. |
| Databáze: | OpenAIRE |
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