Linux System Admins Blog

System admins of Promet – an e-commerce, high availability Open Source web shop – share their findings

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Hawaii comes to our datecenter.

April 21st, 2009 · No Comments

Aside from missing coconut trees and hula girls distinguishing our data center from Hawaii was pretty tough this afternoon. It was HOT, so hot in fact that I was sweating while sitting in just a cotton tee-shirt. I kept drifting away into a daydream where that failed 20 ton Liebert A/C unit was running. Soon [...]

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Tags: hosting · monitoring

MySQL Query Cache, Good or Bad?

April 21st, 2009 · 1 Comment

MySQL has a number of different caches. Most of those are dependent on the storage engine that is used. The key buffer for example caches the indexes for MyISAM tables while the caching of data is left to the OS. InnoDB has the buffer pool for both data and indexes and so on. The query [...]

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Tags: MySQL · Performance

Toughest MySQL CEO email “ever had to write”.

April 21st, 2009 · No Comments

When I saw this text in this WSJ article about the Sun’s Jonathan Schwartz email, it really sounded like I was re-living the year 2000 doc com bubble and I was reading www.fuckedcompany.com.
We use MySQL extnsivly and for very high availability applications so naturally there was a lot of discussion about the future of MySQL.  [...]

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Tags: MySQL