Automatic Tuning of the Keep-alive Parameter of Web Servers based on Request-waiting Intervals

DOI Web Site 6 Citations 27 References
  • SUGIKI Akiyoshi
    Department of Computer Science, Graduate School of Electro-Communications, The University of Electro-Communications
  • KONO Kenji
    Department of Information and Computer Science, Keio University
  • IWASAKI Hideya
    Department of Computer Science, The University of Electro-Communications

Bibliographic Information

Other Title
  • リクエスト待機間隔を考慮したウェブサーバのｋｅｅｐ‐ａｌｉｖｅ時間の自動設定
  • リクエスト待機間隔を考慮したウェブサーバのkeep-alive時間の自動設定
  • リクエスト タイキ カンカク オ コウリョシタ ウェブ サーバ ノ keep alive ジカン ノ ジドウ セッテイ

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Abstract

Manual parameter-tuning of Internet servers causes high administrative costs because it requires administrator's expertise and huge amounts of time. The keep-alive parameter, which is one of major parameters in web servers, may cause severe degradation if it is not set properly. In this paper, we present an automatic tuning technique of the keep-alive parameter. Our mechanism adjusts the parameter without administrator's intervention so as to maintain active connections between clients and a server while closing inactive connections by observing request-waiting intervals. We implemented a prototype for Apache web server. Experimental results show that our prototype automatically adjusted the parameter and successfully yielded the nearly optimal server performance on two different workloads.

Journal

  • Computer Software

    Computer Software 24 (2), 68-78, 2007

    Japan Society for Software Science and Technology

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