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It’s the Hardware, idiot! Increasing MySQL Performance
MySQL performance can be increased in two ways, software optimization and hardware upgrades. While the previous articles have covered much of the software side of performance optimization, we are now...
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MySQL Performance: Table Open Cache in 5.6
Over this summer I've observed several very curious MySQL performance issues, but time was short to blog about (and vacation period is not motivating to it either ;-))But here is a one of them I'd...
View ArticleMariaDB Galera Cluster Alpha immediately available
Today we’re pleased to announce the availability of MariaDB Galera Cluster! With this release, we’re addressing the numerous requests we’ve received over the past few months for a MariaDB-based Galera...
View ArticleMonty’s team announces the availability of MariaDB Galera Cluster!
We’re delighted to share the news that our friends at MariaDB today announced the availability of MariaDB Galera Cluster! We’ve been talking a good bit about MariaDB in the past few months and it’s...
View ArticleAnnouncing Percona Server 5.1.65-14.0
Percona is glad to announce the release of Percona Server 5.1.65-14.0 on September 4th, 2012 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.1.65, including...
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Stuck at "copying to tmp table"
I have a fairly lightly loaded MySQL server with a few tables that are updated every five minutes. Other than these updates, there are very few queries run against the database. The data is queried...
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Adaptive flushing in MySQL 5.6
As you may know, flushing in MySQL is an area of my interest, I wrote about it several times, i.e. http://www.mysqlperformanceblog.com/2011/09/18/disaster-mysql-5-5-flushing/...
View ArticleStaying out of MySQL’s danger zone
MySQL is a great database server. It has lots of flaws, but if you work with its strong points and try to minimize its weaknesses, it works fantastically well for a lot of use cases. Unfortunately, if...
View ArticleNew 5.6 password verification plugin (and impacts to PASSWORD() function)
The recent MySQL 5.6.6 release includes a new password verification plugin. This is a great tool for enforcing passwords that meet certain strength thresholds. Quoting the options from the manual,...
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Testing Intel® SSD 910
Intel came on PCI-e SSD market with their Intel SSD 910 card. With a slogan “The ultimate data center SSD” I assume Intel targets rather a server grade hardware, not consumer level. I’ve got one of...
View ArticleDistro Packages, Pre-built Binaries or Compile Your Own MySQL
I’ve been helping customers deploy and maintain MySQL (and variants) for the last couple of years and it has always been interesting to hear customer thoughts on how they want their servers installed....
View ArticleTable split(...) for the masses
(pun intended) common_schema's new split statement (see release announcement) auto-splits complex queries over large tables into smaller ones: instead of issuing one huge query, split breaks one's...
View ArticleAnnouncing Percona Server 5.5.27-28.1
Percona is glad to announce the release of Percona Server 5.5.27-28.1 on September 5th, 2012 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.27, including...
View ArticleWrite contentions on the query cache
While doing a performance audit for a customer a few weeks ago, I tried to improve the response time of their top slow query according to pt-query-digest‘s report. This query was run very frequently...
View ArticleShould You Use GROUP BY….ORDER BY NULL By Default?
At Northeast PHP a few weeks ago, an audience member came up to me after my talk about indexing and asked about ORDER BY NULL for optimal queries. I have to say, I was surprised, as I had not heard...
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UTOUG Fall Symposium
Heading out to speak on Comparative SQL between Oracle and MySQL at the Utah Oracle User’s Group Fall Symposium. I’ll look forward to meeting old and new friends. Also, I’ve got a couple promotional...
View ArticleAuto_increment gaps
Why are there gaps in my auto_increment sequence, even if there are no deletes or rolled back transactions? Is it a bug? The manual says, "For lock modes 1 or 2, gaps may occur between successive...
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Kuali Days and Austin MySQL Users Group
Keep Austin Weird — Keep Austin Weird is a popular saying in the capital of the State of Texas. The coming October those wishing to to help in these efforts can come hear me talk at Kuali Days 2012...
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MySQL Tech Tours
The MySQL Tech tours are back! The postponed Denver Tech Tour has been rescheduled and we have added another in Austin. See the links before for more information. MySQL Tech ToursImproving Your...
View ArticleHigh availability & more with Tungsten's Oracle replication - Webinar...
Oracle is the most powerful database system in the world. However, Oracle's expensive and complex replication makes it difficult to build highly available applications or move data in real-time to data...
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