Emergency

Monthly Archives: December 2011

FOSDEM 2012 – MySQL and Friends devroom

2012 is near… and so is the next FOSDEM edition ! This year again, MySQL will be represented by its Community. If you want to discuss with friend’s of MySQL it’s the place to be …

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MySQL Training in Washington, DC

Many of you have seen the announcement for our Percona Live in Washington, DC in January! But did you know we also have our highly rated MySQL Training coming to Washington, DC the week of January 16h? …

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Which Linux distribution for a MySQL database server? A specific point of view.

One of the more common questions I get asked is which Linux distribution I would use for a MySQL database server. Bearing the responsibility for someone else’s success means I should advise something that is …

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Announcing Percona Live Washington DC MySQL Conference

If you are close to Washington DC, you should plan to attend our Percona Live event on January 11th at the DC Convention Center. We have three tracks of expert speakers on core MySQL-related topics. …

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Fractal Tree Indexes – MySQL Meetup

At next month’s Boston MySQL Meetup, I will give a talk: “Fractal Tree Indexes – Theoretical Overview and Customer Use Cases.” The meetup is 7 pm Monday, January 9th, 2012, and will be held at …

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Announcing PAM authentication plugin for MySQL (early access release)

We are pleased to announce availability of an early access version of Percona’s PAM Authentication plugin for MySQL. This plugin supports MySQL-5.5.x, Percona Server 5.5.x and MariaDB 5.2.x. The PAM Authentication plugin can be used …

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kernel_mutex problem cont. Or triple your throughput

This is to follow up my previous post with kernel_mutex problem. First, I may have an explanation why the performance degrades to significantly and why innodb_sync_spin_loops may fix it. Second, if that is correct ( …

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kernel_mutex problem. Or double throughput with single variable

Problem with kernel_mutex in MySQL 5.1 and MySQL 5.5 is known: Bug report. In fact in MySQL 5.6 there are some fixes that suppose to provide a solution, but MySQL 5.6 yet has long way …

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Three ways that the poor man’s profiler can hurt MySQL

Over the last few years, Domas’s technique of using GDB as a profiler has become a key tool in helping us analyze MySQL when customers are having trouble. We have our own implementation of it …

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