MySQL

Identifying resource bottlenecks – Memory

Continuing on from CPU , we turn our attention to Memory. One of the first steps when addressing a MySQL performance tuning problem is to perform a system audit of the physical hardware resources, then identify any obvious bottlenecks in these resources.

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A beginners look at Drizzle – Datatypes and Tables

The Drizzle database, while similar to MySQL includes a number of significant differences. In this post we will look at data types and table syntax that is valid in Drizzle. For more background information you can also review A beginners look at Drizzle – Getting around with SHOW .

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A beginners look at Drizzle – Getting around with SHOW

Assuming you have successfully compiled Drizzle , and you are ready to start for the first time, here are some beginner differences with those familiar with the current MySQL 5.1 GA version.

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A Drizzle update – Running version 2009.03.970-development

I’ve not looked at compiling and running Drizzle on my server for the past four weeks. Well overdue time for a check and see how it’s going. I saw in today’s planet.

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Extending vmplot

Taking the work already done with vmplot.sh, a useful tool for MySQL performance tuning by Yves and Matt at BigDBAHead, and in true Open Source fashion I’ve enhanced and modified for my own purposes.

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Identifying resource bottlenecks – CPU

One of the first steps when addressing a MySQL performance tuning problem is to perform a system audit of the physical hardware resources, then identify any obvious bottlenecks in these resources.

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Two FREE MySQL Conferences Next Month

The annual MySQL Conference & Expo will be held in this year on April 20-23 in Santa Clara, California with a double twist. Not one, but *two* FREE additional MySQL Conferences are running at the same time, in the same hotel.

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Priceless Monty

While working with Monty Widenius on a bug I reported in MariaDB I was surprised to not get an IRC response for a few minutes. When committed Monty can identify, create a workaround, and patch a problem in code before you have time to read all the responses he also types.

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Hurting the little guy?

Today I come back from the dentist, if that wasn’t bad enough news, I get an email from Google AdWords titled Your Google AdWords Approval Status. In the email, all my AdWords campaigns are now disapproved, because of:

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Understanding the various MySQL Products & Variants

The MySQL marketplace today is far more complex then simply choosing between a particular version of MySQL that Sun/MySQL produces. The MySQL server product in general is released under the GNU General Public License (GPL) v2 , however you should carefully review the MySQL Legal Policies {#s0rl} as a number of exceptions and different license agreements operate for companion tools such as MySQL Cluster, MySQL client libraries and documentation for example.

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Beginner CSV Engine issues

I’ve just started using the CSV engine for a practical application and I’ve come across a few subtle and unexpected issues/limitations. First, you can’t create any columns in your CSV table nullable.

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Infobright Community Edition(ICE) – It’s Free

The March NY MySQL Meetup featured a presentation from Infobright , a data warehousing solution built on the MySQL Product. With a pitch of “Simplicity, Scalability and low TCO” I became more impressed with the capability to delivery on these as the presentation proceeded.

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Identifying Bad Memory

I was having problems recently with a dedicated production server, that runs my MySQL Server and a number of websites. It’s most annoying when your system crashes without any reporting in /var/log/messages

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Are you monitoring RSS & VSZ?

Monitoring MySQL Memory is a rather critical task because you can’t limit MySQL’s usage of physical memory resources. Improperly configured servers running MySQL can crash because you don’t understand memory usage.

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