全球資訊網分散式管理運用Java

Abstract

全球資訊網伺服器近年來一直呈現指數成長, 社會大眾廣泛地接受這 樣一個全新的媒體所帶來的各種應用, 例如: 電子報刊、家庭購物、網站 導讀、和搜尋引擎服務。這樣的國際化服務是由散布在各地的一群全球資 訊網伺服器、代理伺服器、和對映資料庫所組成, 我們需要有一個新的分 散式管理系統架構來管理這樣一個分散式系統。 先前在這一個領域的 相關研究, 大多針對運用一個網路管理協定來建置管理系統, 例如聞名 的"簡易網管協定", 這樣的管理系統被視為整體網路管理工作的一部份。 對於網路管理者來說, 這也許是一項適當的選擇方式, 但對於大多數小規 模的使用者而言, 例如小型工作室和個人使用者, 那就不見得是一個明智 的抉擇。因為這樣的系統所需的軟體和硬體成本高昂, 建置、運作、維護 的工作都十分專業, 此外這樣的架構並不見得適用於分散式全球資訊網的 伺服器環境。 在我們所提出的架構中, 我們一反過去遵循協定的傳 統, 而沒有使用網路管理協定, 建立一個新的直接思考模式。我們植基於 一個具有Java程式語言的瀏覽器管理平台, 針對非專業的使用者個別需 求, 提供一個低成本、容易建置、使用方便、有效率而容易升級的管理環 境。 我們也運用了Java程式語言的可攜性和安全性的特質, 提供了一 個分散式的管理環境, 使用者可以在連線任何一個伺服器後取得整個系統 的運作管理資料, 相關的顯示介面程式可以就近由遠端程式代理伺服器取 得。 總之, 我們的智慧型跨平台管理模式, 有效的改善了分散式全球 資訊網伺服器的管理效能。 As the WWW server grows at an exponential rate, a whole new media and widespread servicetype has attracted commercial applications, such as electronic newspapers and magazines, home shopping, navigation guiding, and search engine services. Those international services would be provided by a group of WWW servers, proxy agents, and mirror sites. We need a new distributed approach to manage the servers in an organized way here. Recent approaches for the WWW server management focus on using a network management protocol, such as Simple Network Management Protocol (SNMP), integrated as a portion of network management. It may be a proper management method, but it may not be the wisest choice for most Small-Office and Home-Office (SOHO) users, because hardware and software are expensive and there are different installation and maintenance. By the way, the SNMP schema is designed in a centralized monolithic platform with huge Management Information Bases (MIBs), and may not be suitable for a distributed WWW server. Our approach does not use traditional network management protocol. This is recognized as going against the current trend of network management. Our approach provides another management concept on WWW server management. In our approach, we conduct implementation on a Java enhanced web-based platform, which provides a capable and efficient schema with the advantages of having a low-cost, easy installation procedure, and being user-friendly interface for non-disciplined users. With its properties of mobility and security, we gain a distributed management system. We can get the whole system management information from each server, and get the related presentation applet quickly by remote methods. Furthermore, the intelligent cross-platform approach has improved the performance upon the distributed WWW server management.