In-kernel content-aware service differentiation
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United States of America Patent
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Jan 1, 2008
Grant Date -
Jan 2, 2003
app pub date -
Jan 18, 2002
filing date -
Jun 27, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The increasing number of Internet users and innovative new services such as e-commerce are placing new demands on Web servers. It is becoming essential for Web servers to provide performance isolation, have fast recovery times, and provide continuous service during overload at least to preferred customers. The invention describes a kernel-based architecture for content-aware service differentiation that protects Web servers against overload by controlling the amount and rate of work entering the system. We have invented a mechanism that provides admission control and service differentiation based on connection and application level information. The application header-based connection control uses application-level information (such as URIs and cookies for HTTP) to define different service differentiation actions. The present invention provides the kernel mechanisms that are more efficient and scalable than application level controls implemented in current Web servers.
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