What are your favorite MySQL bug reports?
Bug reports can be fun. They can also be terrible. Either way they can be entertaining. On the Drizzle IRC channel today I saw a couple references to MySQL bug reports: it is stop working and Does not...
View ArticleConnector/ODBC 5.1
Connector/ODBC 5.1 (5.1.7 GA, published on Tuesday, 24 Aug 2010)PlanetMySQL Voting: Vote UP / Vote DOWN
View ArticleEMT Tutorial – Installation
EMT is a monitoring tool that I’ve been developing over the past few years. It’s goal is to serve as a hub for performance metrics on a single server. I’ve tried to talk about what EMT is before but...
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For the n-th time, ReiserFS is not a cluster file system
Neither is ext3. Nor ext4. Nor btrfs. And thus, none of these will work on dual-Primary DRBD. Nor active-active shared storage. Nor any synchronously replicated active-active SAN. And we’re telling you...
View ArticleOpenSQLCamp Boston hotel information
I am very happy to announce that I have secured a great rate at a hotel for OpenSQLCamp (a free weekend conference for open source databases such as MySQL, Postgres, SQLite, and NoSQL databases). We...
View ArticleDon’t forget to monitor your nameservers
As I mentioned in a past article I got my IPv6 connectivity working so started working on setting up various IPv6 services. One of these was to setup my name server so it also worked on IPv6. This...
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SQLyog – MySQL GUI 8.6 GA – new features, improved performance and stability.
We are pleased to announce the release of SQLyog – MySQL GUI 8.6 GA. This release adds functionalities requested by users for some time, and fixes a number of bugs. Most important enhancements: User...
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451 CAOS Links 2010.08.24
The future of open source licensing. OpenSolaris governing board quits. And more. Follow 451 CAOS Links live @caostheory on Twitter and Identi.ca “Tracking the open source news wires, so you don’t have...
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Using Pentaho Spoon to load data
Pentaho’s Spoon is an open source ETL or Extract, Transform and Load tool that makes loading data from various formats into a MySQL server easy. Spoon also lets you check the data for problems and...
View Article20 latest unique records
From Stack Overflow: I have a logfile which logs the insert/delete/updates from all kinds of tables. I would like to get an overview of for example the last 20 people which records where updated,...
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How to do user language/locale detection quickly without Zend Framework
Recently I wrote about detecting the preferred language or locale of a web site visitor, using Zend Framework. Well, I have to start with one correction. In my last blog post about this topic I talked...
View ArticleOpenSQLCamp Boston seeking donations
----------- If you are not familiar with OpenSQLCamp, here's a description from the home page at http://opensqlcamp.org/: OpenSQL Camp is open to all – sessions have included PostgreSQL, SQLite, MySQL...
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distributed pushed down joins - progress and attitude
we're now at a stage so we can test/benchmark scan/scan queries, i.e push most queries. there are still know bugs and things that we can't push.to see how we performs, we tested a very old...
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Monitoring InnoDB Lock contention
When you use InnoDB, or any other RDBMS or storage engine that supports row level locking and transactions, you get to realize a few things:The chance of lock contention is less, as the lock is much...
View ArticleMulti-master replication
Implement multi-master to single-slave replication by periodically saving state and changing masters, and do it all in SQL.* Just a proof of concept. I suggest you add some error checking (like, don't...
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Querying for InnoDB Lock contention
In the previous post, I showed how the "virtual tables" that the InnoDB Plugin use for finding lock contention works, and what they look like. I also showed what an InnoDB lock graph looks will look...
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Multi Slicing
The basic data structure that powers databases is called a B-tree. This is where you actually store the user’s data. B-trees are great because you can put huge amounts of data in them and access...
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Monty Program Ab All Company Meeting in Istanbul 2010
As you might know, we are a completely virtual company and we only meet once or twice a year in real life. This year’s decision on where to meet is Istanbul. Being the only Turkish citizen born in...
View ArticleConnector/J ping (there will be a test on this)
MySQL Connector/J has a useful feature which executes a lightweight ping against a server (or, in the case of load-balanced connections, all active pooled internal connections that are retained) to...
View ArticleGetting a return code from a stored procedure
Sometimes we have some special need for a stored procedure to call another to do something. That is fine, but what if the second stored proc failed for some reason? Maybe you want to halt the first...
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