Emergency

Monthly Archives: January 2010

New OLAP Wikistat benchmark: Introduction and call for feedbacks

I’ve seen my posts on Ontime Air traffic and Star Schema Benchmark got a lot of interest (links: https://www.percona.com/blog/2010/01/07/star-schema-bechmark-infobright-infinidb-and-luciddb/ https://www.percona.com/blog/2009/10/02/analyzing-air-traffic-performance-with-infobright-and-monetdb/ https://www.percona.com/blog/2009/10/26/air-traffic-queries-in-luciddb/ https://www.percona.com/blog/2009/11/02/air-traffic-queries-in-infinidb-early-alpha/ ). However benchmarks by itself did not cover all cases I would want, …

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Percona is hiring a Shift Support Captain

Percona is hiring. As part of our growth process, we introduced the role of the Shift Support Captain in 2009 (see the original announcement here) to provide customers with a 24×7 technical contact person. The …

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Community Events February-March

February and March as busy months for Community events.  There’s MySQL University, Fosdem, the Seattle MySQL Meetup & Confoo.ca.

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When should you store serialized objects in the database?

A while back Friendfeed posted a blog post explaining how they changed from storing data in MySQL columns to serializing data and just storing it inside TEXT/BLOB columns. It seems that since then, the technique …

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XtraDB feature: save / restore buffer pool

We recently released XtraDB-9, and while we did not highlight it in announcement, the release-making feature is ability to save and restore InnoDB buffer pool. The idea is not new and was originally developed by …

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Why Swapping is bad for MySQL Performance ?

So you get MySQL or other applications using too much memory on the box or OS behaving funny and using more memory for cache and pushing application to the swap. This causes swapping and causes …

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Fast storage: 8 SSD Intel X-25M 80GB benchmarks

I appreciate opportunity Jos van Dongen from Tholis Consulting gave me. He granted me access to servers with 8 attached Intel X-25M 80GB MLC cards. The cards attached to 2 Adaptec 5805 raid controllers, with …

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How expensive is MySQL Replication for the Master

I generally thought about MySQL replication as being quite low overhead on Master, depending on number of Slaves. What kind of load extra Slave causes ? Well it just gets a copy of binary log …

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2010 Percona Training Schedule

After a nice long vacation, it’s time to unveil our destinations for public classes in 2010.  We are now offering a course for Developers as well as DBAs.  The dates are: Seattle 16 February San …

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XtraDB storage engine release 1.0.6-9

Dear Community, As of today Release 9 of XtraDB storage engine is available. The release includes following new features: The release is base on 1.0.6 version of InnoDB plugin. MySQL 5.1.42 as a base release …

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