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  3. 學習啦>學習電腦>選購與維護>臺式機>《負載均衡器是什么》正文

    負載均衡器是什么

    時間:2015-10-12 10:52:18本文內容及圖片來源于讀者投稿,如有侵權請聯系xuexila888@qq.com 孫勝龍 我要投稿

      如今越來越多人使用網絡,面對網絡服務器岌岌可危的狀況,相關科研人員針對該現象發明了負載均衡器,那么負載均衡器究竟有什么作用呢?接下來就讓學習啦小編帶大家一起來了解關于負載均衡器的問題吧!

      什么是負載均衡器

      顧名思義,負載均衡器主要采取高端技術――負載均衡技術,它可以利用該技術進行各種靈活的分配計算將全部的網絡請求均衡地分布到其他服務器上,通過合理管理每天的網上數據流量來減輕單個服務器上的負擔,力求達到使網絡訪問者享受最佳的聯網體驗。

      負載均衡器的形式

      負載均衡器的形式可謂是多種多樣,除了單純作為負載均衡器外,有些負載均衡器還可在交換設備中置于網絡服務器和互聯網之間,而還有的負載均衡器則利用網絡適配器將該功能集成至PC當中。

    負載均衡器是什么

      負載均衡器的功能

      1.負載均衡器具有提供服務一致性的功能,負載均衡器通過讀取客戶端所發出請求內的信息,進行重寫報頭程序然后將請求發送至合適的服務器上,該服務器會維護著該客戶端信息。在http通信當中,負載均衡器提供服務一致性的功能就得到了很好的發揮,但提供該服務的途徑并不是非常安全。但若將消息加密后,負載均衡器就無法讀取隱藏其中的信息了。

      2.當服務集群中的某個節點無法成功處理請求時,那么該請求就會被發往其他節點上去,當請求成功發至另一節點后,原節點上的請求信息就會自動消失了。

      3.由于所有的客戶端請求都會先經過負載均衡器,所以負載均衡器具有統計計量的功能,利用該功能負載均衡器就可以準確統計出各階段各種流量流動以及各項目進行的次數等,從而網絡就可以適當調整系統性能了。

      負載均衡器的應用

      對于網絡各個核心部分數據流量增長迅速等問題,單一設備根本承擔不住,所以為了加強處理能力,同時也為了提高資源利用,如今很多企業紛紛采取負載均衡技術,簡單快捷,為自己的企業減掉很多不必要的麻煩。

      負載均衡器的未來走勢

      時代發展的速度我們有目共睹,誰能猜想得到將來的事情呢?但是,隨著科技越來越高端,網絡數據必定呈上升趨勢,所以負載均衡器在未來的生活中一定是必不可少的一種設備!

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