Dynamic Load Balancing on Web-Server Systems
IEEE Internet Computing
The effectiveness of request redirection on CDN robustness
ACM SIGOPS Operating Systems Review - OSDI '02: Proceedings of the 5th symposium on Operating systems design and implementation
Operational requirements for scalable search systems
CIKM '03 Proceedings of the twelfth international conference on Information and knowledge management
Queue - Multiprocessors
PowerNap: eliminating server idle power
Proceedings of the 14th international conference on Architectural support for programming languages and operating systems
Improved techniques for result caching in web search engines
Proceedings of the 18th international conference on World wide web
Quantifying performance and quality gains in distributed web search engines
Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval
Cutting the electric bill for internet-scale systems
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
The Datacenter as a Computer: An Introduction to the Design of Warehouse-Scale Machines
The Datacenter as a Computer: An Introduction to the Design of Warehouse-Scale Machines
On the feasibility of multi-site web search engines
Proceedings of the 18th ACM conference on Information and knowledge management
A refreshing perspective of search engine caching
Proceedings of the 19th international conference on World wide web
MEC-IDC: joint load balancing and power control for distributed Internet Data Centers
Proceedings of the 1st ACM/IEEE International Conference on Cyber-Physical Systems
INFOCOM'10 Proceedings of the 29th conference on Information communications
Query forwarding in geographically distributed search engines
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval
Opportunities and challenges to unify workload, power, and cooling management in data centers
ACM SIGOPS Operating Systems Review
Capping the brown energy consumption of Internet services at low cost
GREENCOMP '10 Proceedings of the International Conference on Green Computing
Terrier information retrieval platform
ECIR'05 Proceedings of the 27th European conference on Advances in Information Retrieval Research
RESQ: rank-energy selective query forwarding for distributed search systems
Proceedings of the 21st ACM international conference on Information and knowledge management
A financial cost metric for result caching
Proceedings of the 36th international ACM SIGIR conference on Research and development in information retrieval
Fast candidate generation for real-time tweet search with bloom filter chains
ACM Transactions on Information Systems (TOIS)
Rank-energy selective query forwarding for distributed search systems
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
A self-adapting latency/power tradeoff model for replicated search engines
Proceedings of the 7th ACM international conference on Web search and data mining
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Concurrently processing thousands of web queries, each with a response time under a fraction of a second, necessitates maintaining and operating massive data centers. For large-scale web search engines, this translates into high energy consumption and a huge electric bill. This work takes the challenge to reduce the electric bill of commercial web search engines operating on data centers that are geographically far apart. Based on the observation that energy prices and query workloads show high spatio-temporal variation, we propose a technique that dynamically shifts the query workload of a search engine between its data centers to reduce the electric bill. Experiments on real-life query workloads obtained from a commercial search engine show that significant financial savings can be achieved by this technique.