Emergency

Monthly Archives: March 2007

Speaking on RIT-2007, Moscow, Russia

I’ve been invited to speak at RIT-2007 which stands for “Russian Internet Technologies” conference. It takes place 16-17 April in Moscow, Russia. It looks like this is going to be biggest Russian conference on Internet …

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MySQL Replication and Slow Queries

I just filed a bug regarding slow queries executed by replication thread are not being logged to the slow query log. This is not a big deal but it is ugly little gotcha which I …

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Integers in PHP, running with scissors, and portability

Until recently I thought that currently popular scripting languages, which mostly evolved over last 10 years or something, must allow for easier portability across different platforms compared to ye good olde C/C++. After all, their …

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PHP Sessions – Files vs Database Based

One may think changing PHP session handler from file based to database driven is fully transparent. In many cases it is, sometimes however it may cause some unexpected problems as happened to one of our …

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Only Design What You Can Implement

Working with various projects using MySQL I observe a lot of problems are coming from very simple fact – product is designed containing features which developers do not know how to implement effectively. In many …

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Beware large Query_Cache sizes

During last couple of months I had number of consulting projects with MySQL Query Cache being source of serious problems. One would see queries both for MyISAM and Innodb tables mysteriously stalling for few seconds …

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Onsite consulting in Sillicon Valley anyone ?

I’ve already wrote we do not generally do a lot of on-site onsite consulting, but as I’m anyway going to be speaking at MySQL Users Conference anyway it may be good time for some onsite …

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MySQL Releases first real Community Release

Few days ago MySQL released MySQL 5.0.37 which I would call first real Community Version, because unlike previous versions which were released from the same source tree as Enterprise MySQL this one has some community …

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MySQL MyISAM Active Active Clustering – looking for trouble ?

Reading last few days worth of planet MySQL and commenting on some entries as you can see. The post by Oli catches my attention. There is also PDF with more details available Oli is saying …

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MySQL Query Cache and prepared statements – support comming ?

Looking at post by Konstantin Osipov we should finally get Query Cache working with prepared statements in MySQL 5.1 The interesting thing Konstantin notes it just took few days to fix it – I believe …

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