Emergency

Monthly Archives: July 2011

Dude, Where’s my Fractal Tree?

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Unless you are Ashton Kutcher (@aplusk), or one of his Hollywood buddies, you don’t need to read any further. Allow me to explain… Over the weekend, we launched our new website. This type of announcement …

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Indexing: The Director’s Cut

Thanks again to Erin O’Neill and Mike Tougeron for having me at the SF MySQL Meetup last month for the talk on “Understanding Indexing.” The crowd was very interactive, and I appreciated that over 100 …

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Percona Server 5.1 with Galera replication

As you may know I closely follow Galera replication development, and right now I am evaluating how it performs in our benchmarks. Of course my closest interest is Percona Server, so I made port of …

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Tweeted by @Twirrim

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I’ve been experimenting with TokuDB recently, and I’m fairly impressed with what I see. It’s nippy even with some ‘ugly’ queries.

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Tweeted by @denshikarasu

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Now that I’ve used it on production systems, I can say that HCAD in TokuDB is freakin’ awesome. Who needs maintenance windows anyway?

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Testing the Group Commit Fix

As you may know, Kristian Nielsen made a fix for the Group Commit Problem which we many times wrote about. The fix came into MariaDB 5.3 and Mark Callaghan tested it recently . We ported …

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Followup on performance metrics: slides, video

A while back, I wrote a two part post on how you can extract an amazing amount of information about a system’s performance, scalability, queueing, and more by just measuring request arrivals and completions, and …

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How to change innodb_log_file_size safely

If you need to change MySQL’s innodb_log_file_size parameter (see How to calculate a good InnoDB log file size), you can’t just change the parameter in the my.cnf file and restart the server. If you do, …

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Don’t Thrash: How to Cache your Hash on Flash

Last week I gave a talk entitled “Don’t Thrash: How to Cache your Hash.” The talk took place at the Workshop on Algorithms and Data Structures (ADS) in a medieval castle turned conference center in …

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Speaking on MySQL Meetup in London, July 18

I’m speaking at the great multi-speaker MySQL Meetup event taking place in London, 18th of July. I’ll talk about approaches to application scalability which is one of my favorite topics and would be a good …

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