This post builds upon the earlier article (Creating a simple Cluster on a single LINUX host) which explained how to install and run a Cluster where all of the nodes run on the same physical host.

The single host solution is not great for a real deployment – MySQL Cluster is designed to provide a High Availability (HA) solution by synchronously replicating data between data nodes – if all of the data nodes run on a single host that that machine is a single point of failure.

MySQL Cluster running accross 2 hosts

This article demonstrates how to split the nodes between hosts; the configuration will still be fairly simple, using just 2 machines but it should be obvious how to extend it to …

So i got the T1000 working again (finally, after much screwing about trying to get the part). I then hit the ever annoying “no console” problem, where the console didn’t work – kind of problematic.

After a firmware upgrade, and passing “console=/dev/ttyS0″ to the kernel, things work.

So the T1000 firmware 6.3 doesn’t work with modern debian kernels. Thing swork with 6.7 though.

Microsoft makes a patent promise. JBoss is certifiable. And more.

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“Tracking the open source news wires, so you don’t have to.”

# Microsoft announced that it will be applying its Community Promise to the ECMA 334 (C#) and ECMA 335 (CLI) specifications, reducing patent concerns related to Mono.

# Red Hat achieved EAL 2+ security certification for JBoss Enterprise Application Platform.

# A European Commission white paper on standards stirred some controversy with regards to open source. …

There has been no shortage of lively discussion on open source software licenses with recent shifts in the top licenses, perspectives on the licenses or lack of them for networked, SaaS and cloud-based software, increased prominence of a Microsoft open source license and concern over the openness (or closedness, depending on your perspedtive) of the latest devices. Amid all of it, we’re pleased to present our latest long-form report, CAOS 12 - The Myth of Open Source …

I've now posted all the current talk submissions to the OpenSQL Camp Wiki. A big Thank You to everyone who contributed so far and helped us to bang the drum for this event! If you haven't heard about OpenSQL Camp yet, it's a subconference of the Free and Open Source Conference (FrOSCon) in St. Augustin, Germany, which takes place on August 22+23. The topic of OpenSQL Camp is "Open Source databases and related technologies" and we're looking for interesting presentations in this field.

As we have 12 session slots to fill, we still have room for at least 6 more submissions! It's also a tad bit MySQL-centric at the moment, that should definitely change! We would love to get some more diversity to cover a broader range of Open Source Database technology.

So please submit your talk proposals and help …

Governments. Governance. Customers wins. And more.

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“Tracking the open source news wires, so you don’t have to.”

Governments
The Examiner provided a two part interview with Daniel Risascher, Office of the CIO, Department of Defense, on open source at the DoD, while Government Technology Magazine reported on how open source software and cloud computing can save government money. Similarly, The UK Conservative party delivered a paper on the future of open standards, open source, SOA and cloud for UK Government, while it was reported that Vienna to …

We’re proud to announce the first General Availability build of our database development tool MySQL Workbench. Version 5.1.16 is now available on our download-servers. On our final run towards GA release of version 5.1 we managed to close 13 bugs and a couple of small issues still found in our previous release. Details on latest changes can be found on our Releases Page. Starting with this release, we recommend to switch from your Workbench 5.0 installation right to the new release (if you haven’t yet) - 5.1 is now our current stable release.

The files for different platforms have been pushed to our main server and will be globally available on our mirrors during the next hours. Please get your copy form our Download page:

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It is no joke that computer hardware has advanced by leaps and bounds over the past decade. 10 years ago, multicore systems were expensive and high-end; today, your grandmother may have one and probably have no clue what she has!

Alas, application software has not kept pace. The Linux OS has done a fair job at being able to leverage some of the power multicore systems offer us, but applications running on them have not. The same can be said more or less for Windows, but it’s been a long while since I did anything systems-level with Windows. But the same issues do apply, however.

We are today with the multicore situation where we were in the 80′s and the 90′s with the multithreaded issues. Back then, CPUs grew support for multithreaded programming, but software — including some OSes — were slow to adopt. The Macintosh, when it was first released in 1984, would only support “cooperative” multitasking when the underlying …

Shortly after I created the initial packages of embedded InnoDB on the OpenSUSE Build Service, Oracle/Innobase released an updated version (1.0.3.5325). In addition to many improvements and bug fixes, they slightly changed the versioning scheme to better indicate what version of the InnodDB plugin their code is based on (see Vasil's posting on the InnoDB Forums for more information).

I've now updated my InnoDB packages on the Build Service to this version as well - please note that the naming scheme of the shared library package has …

There is a very simple test to show MySQL replication in action and to also better understand the basics of MySQL Replication. With a configured MySQL environment we can run the following test on your MySQL master, and monitor the MySQL slave.

If you would like to try this, you can use MySQL SandBox which can launch a MySQL Master/Slave configuration in seconds. You can get started with MySQL Sandbox and Download 3.0.04.

Sandbox setup

$ make_replication_sandbox ~/mysql/mysql-5.1.35-osx10.5-x86.tar.gz
$ cd ~/sandboxes/rsandbox_5_1_35/

On the master

We will use a modified version of the numbers procedure found at …