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A proxy-based self-tuned overload control for multi-tiered server systems

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Title A proxy-based self-tuned overload control for multi-tiered server systems
 
Creator VERLEKAR, RP
APTE, V
 
Description Web-sites, especially E-commerce ones, are often faced with incoming load of requests that exceeds their capacity, he, they are subjected to overload. Most existing servers show severe throughput degradation at high overload. Overload control mechanisms are required to prevent such occurrences. In this paper, we present a proxy-based overload control mechanism, which uses the drop in throughput relative to arrival rate as an indicator of overload. On overload detection, a self-clocked admission control is activated, which admits a new request only when a successful reply is observed to be leaving the server system. Thus, the mechanism is self-tuned, and requires no knowledge of the system. We validate our approach on an experimental testbed consisting of a two-tier Web application, and find that even at very high overload, the server operates at its maximum capacity while keeping response times within acceptable bounds.
 
Publisher SPRINGER-VERLAG BERLIN
 
Date 2011-10-23T23:10:32Z
2011-12-15T09:11:18Z
2011-10-23T23:10:32Z
2011-12-15T09:11:18Z
2007
 
Type Proceedings Paper
 
Identifier HIGH PERFORMANCE COMPUTING - HIPC 2007, PROCEEDINGS,4873,285-296
978-3-540-77219-4
0302-9743
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15263
http://hdl.handle.net/100/1983
 
Source 14th International Conference on High Performance Computing (HiPC 2007),Goa, INDIA,DEC 18-21, 2007
 
Language English