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    題名: System Support for Workload-aware Content-based Request Distribution in Web Clusters
    作者: Lin, Yu-Chen
    Chiang, Mei-Ling
    關鍵詞: Content-based Web Cluster;Web Cluster;Content-aware Web Switch;Content-blind Web Switch;Persistent Connection
    日期: 2005
    上傳時間: 2017-09-29 17:40:33 (UTC+8)
    摘要: We have designed and implemented a high-performance and scalable content-based web cluster named LVS-CWARD. The LVS-CWARD cluster uses a small amount of memory dedicated to cache a small set of most frequently accessed files and uses a kernel-level content-based web switch to distribute the HTTP requests from clients among the web servers. The proposed CWARD policy which takes into account the content of requests and workload characterization in request dispatching, with the aim to increase cluster performance by increasing the cache hit rates in web servers. Besides, to efficiently support for persistent connection, the fast Multiple TCP Rebuilding is proposed. Moreover, we propose two request scheduling algorithms to achieve more performance gain by more fine-grained loading measurement for more effective load sharing. The experimental results of practical implementation on Linux show that our proposed kernel-level web switch which takes into account the content in requests and workload information in dispatching requests is efficient and scales well without being the system bottleneck of the whole cluster. Moreover, the trace-driven benchmarking with the real-world working sets demonstrates that our proposed system can achieve up to 107% and 164% better performance respectively than the Linux Virtual Server with a content-blind web switch in distributing requests.
    關聯: TANET 2005 台灣網際網路研討會論文集
    網際網路技術
    資料類型: conference
    顯示於類別:[TANET 台灣網際網路研討會] 會議論文

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