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Percona Live Keynote Speaker: Mark Callaghan

 | January 12, 2011 |  Posted In: Events and Announcements, MySQL

Mark Callaghan has graciously accepted to be the closing keynote speaker for Percona Live: San Francisco! Mark is best known for his work behind MySQL @ Facebook, where he and his team maintain one of the largest MySQL installations around.  They also contribute back to the community with a publicly available branch of enhancements, improved […]

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When does Innodb Start Transaction ?

 | January 11, 2011 |  Posted In: Insight for Developers, MySQL

When does Innodb Start Transaction ? The answer looks obvious – when you issue “BEGIN” command. This is however wrong answer from engine point of you. Run “SHOW INNODB STATUS” and you will see “not started” status in transaction list. It is only when you read (or write) to INNODB table you can see transaction […]

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Percona Server 5.1.54-12.5

 | January 11, 2011 |  Posted In: MySQL, Percona Software

Percona Server version 5.1.54-12.5 is now available for download. It is now the current stable release version. Functionality Added or Changed Percona Server 5.1.54-12.5 is based on MySQL 5.1.54. New Features Added: None Other Changes: Added system variable innodb_log_block_size and new value “keep_average” to system variable adaptive_checkpoint in Improved InnoDB I/O Scalability. (Yasufumi Kinoshita) Added new value […]

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How to Identify Bad Queries in MySQL

 | January 10, 2011 |  Posted In: Insight for Developers, MySQL

Finding bad queries is a big part of optimization. A scientific optimization process can be simplified to “can anything be improved for less than it costs not to improve it? – if not, we’re done.” In databases, we care most about the work the database is doing. That is, queries. There are other things we […]

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Percona Server Fast-Restart White Paper Posted

 | January 10, 2011 |  Posted In: MySQL, Percona Software

I’ve posted a new white paper about the implementation and benefits of Percona Server’s fast-restart capabilities. Briefly, after shutting down and restarting or rebooting the server, it can be back to full performance in a couple of minutes. That’s minutes, not hours or days. This matters a lot for keeping uptime high and reducing hardware […]

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High Rate insertion with MySQL and Innodb

 | January 7, 2011 |  Posted In: Benchmarks, MySQL

I again work with the system which needs high insertion rate for data which generally fits in memory. Last time I worked with similar system it used MyISAM and the system was built using multiple tables. Using multiple key caches was the good solution at that time and we could get over 200K of inserts/sec. […]

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