Miha Nedok from http://www.izklop.com wrote us a few days ago about their mysqlnd test run:

I wish I had another production box to test. But what we and our users see now, actually the users notified our team that the site is suddenly “always loading fast”.. The only change… you guessed it mysqlnd installed. It wasn’t slow before, but people noticed performance degradation at times that the site is most visited when libmysql was used.

Hick-ups solved

After a little hick-up during the first days the server is now running stable with ext/mysql @ mysqlnd. Immediately after the installation of mysqlnd, Miha noticed that persistent connections got closed because of a low …

Miha Nedok from http://www.izklop.com wrote us a few days ago about their mysqlnd test run:

I wish I had another production box to test. But what we and our users see now, actually the users notified our team that the site is suddenly “always loading fast”.. The only change… you guessed it mysqlnd installed. It wasn’t slow before, but people noticed performance degradation at times that the site is most visited when libmysql was used.

Hick-ups solved

After a little hick-up during the first days the server is now running stable with ext/mysql @ mysqlnd. Immediately after the installation of mysqlnd, Miha noticed that persistent connections got closed because of a low …

I have an install of Windows Server 2003 setup under Virtual Server 2005.  I use this image for continuous integration of my Connector/Net products.  The host machine is running Vista x32 Ultimate. 

I'm not sure if its because it's on Vista but any virtual machines I add would disappear following a reboot.  Not only that but attempting to re-add the machine would give an error indicating that the machines configuration was already present and could not be added again.  Fun.

There's an easy solution though.  Just move your machine images into the default search path for Virtual Server.  On my machine that's C:\Users\Public\Documents\Shared Virtual Machines.  If you've already worked around this by renaming your .vmc file a few times, you can clean out those old configurations by deleting appropriately from C:\ProgramData\Microsoft\Virtual Server\Virtual Machines.

[BTW, I'm using …

I’ll be checking out MySQL’s “DBA Boot Camp” for Oracle DBAs on Thursday. Back next week to report on it.

Then, upcoming posts will discuss further topics from my talk, touching on scaling strategies, backups, and permissions. After that we’ll get to some more technically detailed issues that we encountered when we switched over to MySQL and got things up and running. Keep watching!…

Fedora receives $4.9m grant. MuleSource adopts OSI-approved CPAL license. FiveRuns and BitRock launch Ruby on Rails stack for the enterprise. (and more)

Gordon and Betty Moore Foundation Awards Fedora Commons $4.9M to start non-profit organization and develop open-source software for collaborative communities, Fedora Commons (Press Release)

MuleSource Announces Adoption of CPAL, MuleSource (Press Release)

FiveRuns Releases RM-Install, Powered by BitRock, FiveRuns / BitRock (Press Release)

Oracle CEO Ellison: Open source software is no threat, Haaretz, Guy Grimi …

I?m having a lot of difficulty understanding the debate surrounding MySQL?s decision to make their enterprise binaries and source less available than before. I was hoping that a few days into it I would get a better sense of the debate and why I was seeing the positions that are popping up. I realized, though, that the context of the discussion is deeply entrenched within the traditional software business model. Furthermore, it is complicated by MySQL?s IPO plans. I?ve seen people argue that MySQL is not as open, that MySQL is technically adhering to the GPL, that this is all... READ MORE

Catching up on some articles on the Planet MySQL feed, I just read the post by Dathan on how to promote a slave to be master by using MASTER_POS_WAIT(). The MASTER_POS_WAIT() is an excellent function that allows you to wait until the slave reaches a point at or after the given binlog position. Observe that after the statement issuing a MASTER_POS_WAIT() returns, the slave threads are still running, so this means that even if a STOP SLAVE is issued immediately after the statement with MASTER_POS_WAIT(), it is bound to move a little more before actually stopping. For Dathan's situation, this is not necessary, but wouldn't it be great if you could stop a slave at exactly the position that you want? Well, that …

What if last week’s announcement by MySQL had been the following?

Some major MySQL distributors have brought some issues to our attention. These distributors have been legally distributing the Enterprise version of MySQL to folks that do not have a MySQL support contract, without their knowledge or consent.

When a user installs an open source operating system and includes MySQL, should that user get the Community version or the Enterprise version? Since the source code was split back in October 2006, MySQL AB has felt that users should use the Enterprise version only if they intend to. We have made the source easily downloadable, so folks that want to use Enterprise, are able to use Enterprise.

However, given that distributors have been doling out Enterprise to unsuspecting users, we decided to change a few things. Firstly, we recognize that folks may be downloading Enterprise because they do not understand that Community …

This is fun. Probably submitting a bug report if I can get to the bottom of it.

Stupid pet trick with mysql 4.0:

mysqldump [equivalent of --opt without the --add-locks] --single-transaction --master-data | whatever

According to the manual, you'd expect this to work like it does on mysql 4.1+. A tiny lock to grab the master data info, then a consistent read is done via a transaction.

What actually happens? Full table lock, AND a transaction! Delicious.

Looking inside the 4.0 source code for mysqldump.c, it's obvious what the bug is. There's a check to exclude --single-transaction and --lock-tables, but --master-data enables --first-slave (later renamed to --lock-all-tables) silently, which does a lock on all tables.

Fun! So where's the bug, right? 4.0 is deprecated. Nah, the bug comes more recently.

See MySQL 5.0.24a. Attempt to use its …

Judges rules for Novell in SCO case. XenSource updates XenEnterprise. Red Hat releases Eclipse-based IDE for JBoss. (and more)

XenSource Raises the Bar on Enterprise-Class Virtualization with Industry?s Most Open, Scalable, High Performance Solution, XenSource (Press Release)

Red Hat Accelerates Application Development and Migration with Integrated Developer Tools, Red Hat (Press Release)

Actuate Harnesses Open Source to Advance Leadership in BI, Actuate (Press Release)

Fonality Launches Free Business Phone System with Free Worldwide …