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ConfigExamples/DynamicContent - Squid Web Proxy Wiki

  • The default configuration of squid prevents the caching of dynamic content (pages with ? in the URI)
  • To enable your Squid to cache some websites with ? you will need to create a bypass ACL to catch those sites and turn the caching back on.
12 May 09

Nabble - JMeter - User - When to use the option "Retrieve All Embedded Resources from HTML Files"

  • The option specifies whether or not to download embedded resources

    such as style-sheets and images that would normall be downloaded by a

    browser (depending on the browser options of course).
11 May 09

SquidFaq/ReverseProxy - Squid Web Proxy Wiki

  • An accelerator caches incoming requests for outgoing data (i.e., that which you publish to the world). It takes load away from your HTTP server and internal network. You move the server away from port 80 (or whatever your published port is), and substitute the accelerator, which then pulls the HTTP data from the "real" HTTP server (only the accelerator needs to know where the real server is). The outside world sees no difference (apart from an increase in speed, with luck).
  • Sites which own and publish a URL hierarchy use an accelerator to improve access to it from the Internet. Sites wishing to improve their local users' access to other sites' URLs use proxy caches.
  • 3 more annotations...

Squid 2.5 Quick Start Guide

  • By default http_access is denied.
  • By default, squid is configured as a direct proxy . In order to cache web traffic with squid, the browser must be configured to use the squid proxy.
  • 2 more annotations...
29 Mar 09

Code: Flickr Developer Blog » Building Fast Client-side Searches

  • downloads a list of all of your contacts, in JavaScript, in under 200ms (this is true even for members with 10,000+ contacts).
  • store each member’s contact list in a text blob
  • 11 more annotations...
24 Feb 09

squid : Optimising Web Delivery

  • Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more.
    It reduces bandwidth and improves response times by caching and
    reusing frequently-requested web pages.
  • [The Squid systems] are currently running at a hit-rate of approximately 75%,
    effectively quadrupling the capacity of the Apache servers behind them.
26 Dec 08

How To Make IE Cache Less · Nadav Samet's Blog

  • Internet Explorer is known to cache the responses of GET calls. The problem occurs if your javascript functions request the same url over and over again. Internet Explorer will cache the response of the first call, and subsequent calls will automatically return the same response, without actually contacting the server.
  • add a random part to the url (i.e.: /poll?random=f2dee87716f).
  • 1 more annotations...

prototype Ajax.Updater and IE7 bug(?) - Ruby Forum

  • Ajax.Updater works only the first time and stops sending request
    afterwards.
  • just add header in the
    response object saying explicitly not to cache.
    only for GET requests, response must have something like this:
    <%
    response.setHeader("CACHE-CONTROL", "NO-CACHE");
    %>

From the Archives: Ajax IE Caching Issues | Null Disquisition

  • My problem was that if the url for the java servlet (e.g. ’servlet/imagemaker.jsp?foo=bar&goo=car’) had been requested recently, IE presumed that it didn’t need to ask the server for that url again.
  • i disabled asynchronity in my xmlhttprequest, and to my dismay - it worked.
  • 3 more annotations...
15 Dec 08

手机之家网站架构--对话高春辉 - DBA notes

  • 目前的技术状况是基于自行设计的 PHP 框架，跑在 PHP 5.2 + MySQL 5.1 下，PHP 使用 Fastcgi 模式，WebServer 选择了 Nginx。搜索功能基于 Lucene 开发。缓存代理使用 Varnish。
  • 把针对 Yslow 的优化也做进去了
  • 8 more annotations...
11 Nov 08

AliSDN@阿里软件开发者博客 » 云计算成为现实

  • Jetty已经可以嵌入下面这些云计算软件，而你只要将你的Web应用部署到Jetty
  • 它有一个其高性能NIO Server：grizzly (https://grizzly.dev.java.net/)glassfish+grizzly可能走向P2P计算模式
  • 2 more annotations...
05 Oct 08

大型web2.0互动网站设计方案 - 技术开发 | IT168

  • 图像主要有两部分：一部分是经常要使用到的，像用户头像，群组的头像等等，大概有100多GB，它们被Squid和CDN所缓存，命中率相对比较高；另一部分是用户上传的大量照片，它们的个体访问量相对而言比较小，命中率也比较低，使用Cache不划算，所以对于这些照片的策略是直接在用户上传的时候分发到到图片存储服务器上，在用户访问的时候直接进行访问，当然图片的位置需要在数据库中进行记录，不然找不到放在哪台服务器上就郁闷了。
04 Aug 08

memcached全面剖析–5. memcached的应用和兼容程序 - idv2

  • 单单memcached就有将近200台服务器在运行
  • daemontools是qmail的作者DJB开发的UNIX服务管理工具集，
    其中名为supervise的程序可用于服务启动、停止的服务重启等。

memcached完全剖析–1. memcached的基础 - idv2

  • memcached
    是以LiveJournal
    旗下Danga Interactive
    公司的Brad Fitzpatric
    为首开发的一款软件
  • 高动态Web应用的速度、
    提高可扩展性
  • 5 more annotations...
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