Limiting functions to 32k stack in Drizzle (and scoped_ptr)
I wonder if this comes under “Code Style” or not… Anyway, Monty and I finished getting Drizzle ready for adding “-Wframe-larger-than=32768″ as a standard compiler flag. This means that no function...
View ArticleLog Buffer #206, A Carnival of the Vanities for DBAs
Welcome to Log Buffer, the weekly news blog about blogs in the datasphere… As we kick off Log Buffer #206, our own Gwen Shapira shares a few of her weekly favorites: Oracle: Arup Nanda posted an...
View ArticleDBJ – MySQL Hotbackups with Xtrabackup
The open-source xtrabackup tool from Percona brings much needed hot backup functionality to MySQL deployments. In this database journal article we discuss logical, cold, and hot backups, then explain...
View ArticleHow to resize Innodb log files?
Just in case you don't know resizing Innodb log file is not just simple as changing the value of innodb_log_file_size in the MySQL configuration file. But its even more simpler. Follow the steps in...
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MySQL Performance: 5.5 and InnoDB thread concurrency
Until now, when you observed a performance degradation with a growing number of concurrent user sessions in InnoDB the most simple way to avoid such a degradation was to set innodb_thread_concurrency...
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The 4 Things You Should Know When Designing Your Database for the Cloud
In his recent column, CNET’s Dave Rosenberg asks “Are databases in the cloud really all that different?”. The short answer: Yes, They ARE! Addressing Rosenberg’s point, I described the 4 key issues...
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The perils of uniform hardware and RAID auto-learn cycles
Last night a customer had an emergency in selected machines on a large cluster of quite uniform database servers. Some of the servers were slowing down in a very puzzling way over a short time span (a...
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Percona white paper: Forecasting MySQL Scalability
Ewen and I have just published Percona’s latest white paper, Forecasting MySQL Scalability with the Universal Scalability Law. This is essentially a streamlined walk-through of Dr. Neil J. Gunther’s...
View ArticleO'Grady's Fear of Forking, Let a thousand flowers bloom
In the article "Fear of Forking" there was a quote pulled from me about my observations from a yearly call done by the folks at O'Reilly with many of the authors of different open source projects."On a...
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Kettle vs Oracle REF CURSOR
Dear Kettle fans, PDI-200 has been out there for a while now. Jens created the feature request a little over 3 years ago. I guess the main thing blocking this issue was not as much a technical...
View ArticleMySQL - My new playground
The business-logic should not be the task of a database server, because hardware of database servers is mostly more expensive than the sheet metal of some stupid application servers. The other problem...
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MySQL (including Cluster) at the 2010 UK Oracle User Group Conference
The UK Oracle User Group Conference runs from 29th November through 1st December 2010 – the MySQL content is on Wednesday 1st at the ICC in Birmingham. This is a great chance for MySQL users to find...
View ArticleThe Casual MySQL DBA – Operational Basics
So your not a MySQL DBA, but you have to perform like one. If you have a production environment that’s running now, what are the first things you do when it’s not running or reported as not running?...
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MySQL Cluster 6.3.39 binaries released
The binary version for MySQL Cluster 6.3.39 has now been made available at http://www.mysql.com/downloads/cluster/ A description of all of the changes (fixes) that have gone into MySQL Cluster 6.3.39...
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MySQL Cluster 7.1.9 binaries released
The binary version for MySQL Cluster 7.1.9 has now been made available at http://www.mysql.com/downloads/cluster/ A description of all of the changes (fixes) that have gone into MySQL Cluster 7.1.9...
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Cloud Challenges for Databases Series: Distributed Environment
When it comes to cloud computing, people want to command nearly endless resources while still being able to deploy, run and consume a distributed solution anywhere and anytime. The reality, however, is...
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Developer Week in Review
Here's what's new for the trendy developer this week: Java's future on Apple: Slightly less in doubt Last week, it looked like Apple was all "You're not welcome here, Java." In the changeable world...
View ArticleAvoiding Fragmentation with Fractal Trees
Summary B-trees suffer from fragmentation. Fragmentation causes headaches — in query performance and space used. Solutions, like dump and reload or OPTIMIZE TABLE are a pain and not always effective....
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My Presentation at the DOAG 2010
Yesterday I presented PBXT: A Transactional Storage Engine for MySQL at the German Oracle User Group Conference (DOAG) in Nuremberg. A number of people asked for the slides, so here is the link.The...
View Article10 Steps: MySQL Monitoring through Nagios: Install & Configure
Nagios is a powerful monitoring system and here we will learn how to monitor MySQL through Nagios. We will be installing Nagios, required plugins and configuring it to monitor MySQL... Related...
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