| 基于内容交换的Web Cache集群实现技术 |
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| 引用本文： | 古志民,王柳华,马俊昌.基于内容交换的Web Cache集群实现技术[J].北京理工大学学报,2005,25(8):710-713. |
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| 作者姓名： | 古志民 王柳华 马俊昌 |
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| 作者单位： | 北京理工大学,信息科学技术学院计算机科学工程系,北京,100081;北京理工大学,信息科学技术学院计算机科学工程系,北京,100081;北京理工大学,信息科学技术学院计算机科学工程系,北京,100081 |
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| 基金项目： | 北京理工大学校科研和教改项目 |
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| 摘 要： | 采用商用PC集群实现基于内容交换的Web Cache服务系统.集群前端的Layer-7交换机接收客户请求,并用HTTP请求头等信息进行基于内容的负载分配,然后转交给相应后端节点进行处理;通过TCP handoff方式使得后端直接应答客户;后端ARP特殊处理避免了繁琐的内核编译问题.试验结果表明,该集群的性能价格比较高,对不可缓存对象的处理大约节省40%的响应时间.
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| 关 键 词： | Web缓存集群 基于内容交换 TCP handoff |
| 文章编号： | 1001-0645(2005)08-0710-04 |
| 收稿时间： | 2004/9/21 0:00:00 |
| 修稿时间： | 2004年9月21日 |
Implementation of a Web Cache Cluster Based on Content-Aware Switching |
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| GU Zhi-min,WANG Liu-hua and MA Jun-chang.Implementation of a Web Cache Cluster Based on Content-Aware Switching[J].Journal of Beijing Institute of Technology(Natural Science Edition),2005,25(8):710-713. |
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| Authors: | GU Zhi-min WANG Liu-hua and MA Jun-chang |
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| Institution: | Department of Computer Science and Engineering, School of Information Science and Engineering, Beijing Institute of Technology, Beijing100081, China;Department of Computer Science and Engineering, School of Information Science and Engineering, Beijing Institute of Technology, Beijing100081, China;Department of Computer Science and Engineering, School of Information Science and Engineering, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | A Web Cache cluster based on content-aware switching is implemented. It uses a layer-7 switch as the front-end node which transfers the client request to one of the back-end nodes, and its load is scheduled according to the content of HTTP header; some back-end node transfers the response to the client directly by the TCP handoff method, while the back-end need not recompile kernel because of ARP processing as is different from LVS. Tests, show high throughput performance, and the response time is reduced about 40% by the kernel-based Squid tool KSquid for non-cacheable object. |
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| Keywords: | Web Cache cluster content-based switching TCP handoff |
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