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Displaying posts with tag: ganglia (reset)
Some tabs - Marten interview, Facebook, Flickr

I’ve been collecting a bunch of tabs, MySQL related, that I think people might have missed during the holiday period.

Contrarian Minds: Marten Mickos - this is a great interview with former CEO of MySQL, now SVP of the Database Group, at Sun Microsystems. Its got a bit of interesting history, and thoughts about the future. There’s also some interesting photography.

Facebook is now at 150 million users. They grew quite a bit recently, it was just 140 million about a month or two ago.

Flickr has seen traffic reaching ten terabytes. As you know, Flickr runs MySQL, …

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Capacity Planning, Architecture, Scaling, Response time, Throughput

First of all let me start off saying that I learned a lot of Capacity Planning from two people. Jozo Dujmovic, and John Allspaw-who by the way is coming out with a book.

Capacity != Performance
. You may have the capacity to do a bubble sort but a bubble sort is still a bubble sort.

Really to Scale you need to know when your application will break. I have a tool set to help determine what application is producing what SQL and use that to figure out which SQL is producing the most load on the system. Some common tricks I do is put the execution path automatically as a SQL comment, then sample the FULL Processlist to build a graph on what application, function, SQL pattern is the top load.

On top of that I use Ganglia to trend the use of each mysql …

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