Lessons from Yahoo, eBay, Orbitz, LinkedIn architecture

In The Architectures You've Always Wondered About track at the Qcon conference, Second Life, eBay, Yahoo, LinkedIn and Orbitz presented how they dealt with different aspects of their applications, such as scalability. There were quite a few lessons that I learned that day that I thought were worth sharing. The details are provided below: Lessons from Yahoo, eBay, Orbitz, LinkedIn architecture

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Product: Cacti

Cacti is a network statistics graphing tool designed as a frontend to RRDtool's data storage and graphing functionality. It is intended to be intuitive and easy to use, as well as robust and scalable. It is generally used to graph time-series data like CPU load and bandwidth use. The frontend is written in PHP; it can handle multiple users, each with their own graph sets, so it is sometimes used by web hosting providers (especially dedicated server, virtual private server, and colocation providers) to display bandwidth statistics for their customers. It can be used to configure the data collection itself, allowing certain setups to be monitored without any manual configuration of RRDtool.

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Product: Yslow to speed up your web pages

Update: Speed up Apache - how I went from F to A in YSlow. Good example of using YSlow to speed up a website with solid code examples. Every layer in the multi-layer cake that is your website contributes to how long a page takes to display. YSlow, from Yahoo, is a cool tool for discovering how the ingredients of your site's top layer contribute to performance. YSlow analyzes web pages and tells you why they're slow based on the rules for high performance web sites. YSlow is a Firefox add-on integrated with the popular Firebug web development tool. YSlow gives you: * Performance report card * HTTP/HTML summary * List of components in the page * Tools including JSLint

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