Here's my presentation I gave May 12, 2008, at the Twin Cities MySQL and PHP User Group about my experience at the 2008 MySQL Conference and Expo.

Thanks to all of those that came. I had a great time!

Here's my presentation I gave May 12, 2008, at the Twin Cities MySQL and PHP User Group about my experience at the 2008 MySQL Conference and Expo.

Thanks to all of those that came. I had a great time!

It is 23:30 here in Kiev and we are closing the first day of our team meeting.

After my Kick-Off and general discussion of the road-map Tax took over and was discussing the QA aspect of our WB 5.0 releases so far. We analyzed the rate of incoming bugs vs. the number of bug fixes and the time spans between Alpha, Beta, RCs and GA releases. That helps us to make better predictions in the future.

After the lunch break Alfredo presented his conversion of the GRT (WB core system) from the current C implementation to a cleaner C++ version and we forgot about the time discussing all the details of this complex tasks. We will squeeze in the rest of the planned sessions for today (Linux Porting Challenges, Feature Discussion - Visual Query Builder) tomorrow morning - but this was a very important discussion to have.

We went out for dinner and just as we walked outside it started raining. The center of Kiev is very beautiful and …

(This blog entry was written and co-posted together with my friend and the CEO of Warp Networks and EBox Platform, Ignacio Correas. Copyright notice: Please note that pictures embedded in the story by Ignacio are certainly not Creative Commons licensed anything.)

Ignacio: I have always considered MySQL as the best model for open source companies. Their approach to the market, the execution of different business models, their relation with the community or the way their work internally as a virtual organization have shown an innovative and successful example of how an IT company in the 21st century can be managed.

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No Matt, my brain definitely wasn't idle.. I've been thinking about these problems for the better part of the last decade. And it seems like I`m not the only one who wants this discussion.

Dries told me that as a follow up to my previous post I should write a post with solutions to the problem. Difficult as I don't have the solutions yet.. If I had them .. well :)

Fact is that different types of opensource products might require different approaches Alfresco to my knowledge has little to no contributing community , Linux distributions tend to have a big one, if not just in the form of the different open source projects they pacakge. The MySQL community is more one …

Ever see this
TCP: drop open request from 10.209.23.142/43407

Well lets start with a more specific example:
Memcache is tightly coupled in your code: Every request caches the response from the database so a lot of quick calls to memcache is made. Then you start adding full HTML to memcache instead of just caching the raw data; so now your load pattern is bigger blobs of data still at a high request rate.

Now suddenly the memcache port hangs-you verify this by ssh to the box and then telneting the the memcache box port 11211 and see that ssh works (port 22) yet 11211 does not. As a result all your front ends fall over because they are hanging on the memcache port.

THIS IS NOT A MEMCACHE PROBLEM. Its a kernel problem. Default installs of Linux set the TCP window buffer size to a desktop setting and not a server setting.

So I run this script.

 …

I put it to you... should the datagrid support arrays as the data source as well as MySQL result sets? I'm thinking maybe it should, mainly because I need something to do. :-/ But I can see the situation where you might want to test and setup the datagrid by just giving it an array, before you actually set it up correctly for MySQL. Or maybe there's connection issues and you want to make sure that the datagrid isn't the problem. But regardless, should the datagrid support arrays?

One of our peer group developers contacted me today stating that they were inserting a value of 10 in one of the columns in their tables. But after the insert, when they query the table they were getting the value as 0.

Logged into the box to check what was happening. Luckily binlog was turned on that mysql instance. Ran the mysqlbinlog utility on the current binlog and greped for the particular primary key value.

It listed an insert statement and an update statement. There was the culprit, the value of 10 was getting inserted but soon the application was following it up with an update to value 0. Yeah it is always not the database

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Running MySQL 4 And MySQL 5 Concurrently

This tutorial shows how to install MySQL 5 on a system where MySQL 4 is already running. It also shows how to configure phpMyAdmin to use both databases.

I put it to you... should the datagrid support arrays as the data source as well as MySQL result sets? I'm thinking maybe it should, mainly because I need something to do. :-/ But I can see the situation where you might want to test and setup the datagrid by just giving it an array, before you actually set it up correctly for MySQL. Or maybe there's connection issues and you want to make sure that the datagrid isn't the problem. But regardless, should the datagrid support arrays?