Is MySQL giving you the error message “ERROR 1200 (HY000): The server is not configured as replica; fix in config file or with CHANGE MASTER TO” when you try to run START SLAVE? There are a few simple troubleshooting steps to take, but I always forget what to do. This article is to help me remember in the future! First, make sure you have run CHANGE MASTER TO and configured the server as a replica.

The trunk version of the MySQL Proxy 0.6.0 just learnt about changing backends within running connection. It is now up to lua-script to decide which backend shall be used to send requests too.

We wrote a complete tutorial which covers everything from:

• building and maintaining a connection pool with high and low water marks
• transparent authentication (no extra auth against the proxy)
• deciding on Query Level which backend to use

and implement a transparent read/write splitter which sends all non-transactional Queries to the slaves and the rest to the master.

As the splitting is in the hands of the lua-scripting level you can use the same to implement sharding or other rules to route traffic on statement level.

Connection Pooling

For R/W Splitting …

Now here’s where I should be spending my Aeroplan miles and Marriott points, registration opened today for the first Asian MySQL conference in Tokyo:

http://www.mysql-ucj2007.jp/english/index.html

Too bad I hadn’t heard about the call for speakers, given my previous level of fluency I bet with good prep and practice I could have banged out my Normalization talk in Japanese. That would have been a hoot.

Released today, administrators of the Alfresco Enterprise Content Management System now have access to a fully supported, enterprise-ready systems management solution with Hyperic HQ for Alfresco. The new Hyperic HQ plugin instantly enables HQ and Alfresco administrators to take full advantage of Hyperic?s powerful management capabilities, including auto-discovery, monitoring, complex alerting and remediation. With today’s release of the Hyperic HQ for Alfresco plugin, Hyperic HQ becomes the only monitoring system to natively support Alfresco deployments on every platform and architecture.

Enterprise Content Management ensures the quick and reliable delivery, accessibility and long-term control of the most important information assets in an enterprise. These all require a strong, reliable architecture,? said John Newton, CTO and co-founder of Alfresco Software Inc. ?Hyperic HQ?s plug …

A thought struck me this morning: would you really want your database/application server/office productivity suite/etc. developer to also be the author of your operating system? On one level, the answer is an easy 'yes': tighter integration between the OS and the applications that run on it is a good thing.

On the other side of this coin, however, is the reality that today's integration is tomorrow's barrier to entry against all other applications. Take Microsoft, for example.

Microsoft has arguably done a very good job of encouraging third-party applications on its Windows platforms. But Microsoft has done less well once it starts to compete in a given application market against its partners. Even where the company has a financial incentive to boost the partner, it has a competing incentive to boost itself.

...

* dchinner hands MacPlusG3 a bigger knife….

(on #xfs yesterday)

MySQL K.K., the Japanese subsidiary of MySQL AB today announced free pre-registration for the MySQL Users Conference Japan 2007, the first MySQL users conference to be held in Asia.

Date: Tuesday, September 11 & Wednesday, September 12, 2007

Location: National Museum of Emerging Science and Innovation

Admission fee: Free, if pre-registered. Participation on that day is 5,000 yen.

Pre-registration: www.mysql-ucj2007.jp/english

Main sponsor: MySQL AB

I just unpacked and started setting up the Kysoh Tux toy that I got at OScon. The lucky folks with a press badge were given a free one. I had to pay for mine.

The good:

Physically, it feels to be well and solidly made. It didn't feel like they were being cheap with the fabrication. It weighs just over half a kilogram.

Physical setup is straightforward. Unstrap the parts from the box. Click in the US power module into the internationalized power cord. Plug in the penguin unit, to charge it up. It can operate both plugged in, and on internal batteries, which it charges itself. Plug the fish unit into your computer with the included USB cord. It uses a mini-usb plug.

The firmware running in the "Penguin" main unit, and the firmware running in the "Fish" USB/wireless transmitter unit, and the interface library and control software on the host are …

Long time no blog again.. Well, lots happened which flipped my world again upside down and.. Ah well.. We'll see how it goes.. blah blah blah..

Last week I was in Rochester, Minnesota, which is a central northern state in US. I flew in via Chicago and saw while landing at O'Hara Airport the Sears Tower after enjoying the beautiful great lakes. Later I flew into Minneapolis where I met up with my MySQL colleagues. Oh great fun it was! I was at the wrong hotel and my old Nokia phone didn't work. Of course, Ray's phone got stolen.. Anyway, we finally got together and I got in trouble with the waitress because I said the beer or glass was bad (which was also the case).

Sunday we drove direction Rochester, but first I had to buy some new pants! Dress code at IBM and I would get in trouble with my jeans! This was a perfect excuse to go to the Mall of America, the biggest mall in US and apparently also in the world. I mean, …

Note: Installing Oracle 11gR1 on Ubuntu 8.10 Intrepid Ibex is now published.

Note: I have now published “Installing Oracle 11g on Ubuntu Linux 7.10 (Gutsy Gibbon)”

Note: This page focuses on Ubuntu installs. Oracle has published a web page for successfully installing Linux on unsupported platforms that you may find helpful.

I come from a MySQL background, and I have been given the challenge of learning Oracle. I can’t just play around with our customers’ databases, but I remembered that Paul Vallée said that there is …