Argh! MySQL cluster currently stores in RAM only. That means if I have 100 machines each with 4 gigabytes of RAM, then I can store 200 gigabytes of data! Hurrah! That's at least what I learnt in the tutorial, feel free to correct me if I am wrong.

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So, there are two access points with the ESSID "MySQL-Hyatt" that I can see from my coffee drinking spot here in the foyer. iwlist tells me that they have encryption off, which matches what the conference handbook says should be the case. No DHCP leases are being offered though. I guess that means that the conference network hasn't been commissioned yet. Oh well.

Update: Oh, it works in the conference rooms, which have a different ESSID.

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So, there are two access points with the ESSID "MySQL-Hyatt" that I can see from my coffee drinking spot here in the foyer. iwlist tells me that they have encryption off, which matches what the conference handbook says should be the case. No DHCP leases are being offered though. I guess that means that the conference network hasn't been commissioned yet. Oh well.

Update: Oh, it works in the conference rooms, which have a different ESSID.

Tags for this post: mysql() conference() mysqluc2006()

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I'm working on a Visual Studio package for MySQL and discovering that it is possible to write hundreds of pages of documentation and still not be able to answer some of the most basic questions.  Microsoft does it over and over again. 

In this case I'm using managed code to create a custom editor for our database objects (think Server Explorer).  I don't want to register a file extension.  After considerable trial and error, I got  a chunk of code working.  This code called IVsUIShellOpenDocument.InitializeEditorInstance and IVsUIShell.CreateDocumentWindow and my editor appeared.  However, it would not prompt to save when the window pane was closed.  GetDocumentInfo showed an edit lock on my document but UnlockDocument could not remove it.

I replaced this code with simpler code that called IVsUIShellOpenDocument.OpenSpecificEditor and my documents suddenly started prompting to save …

SANTA CLARA, Calif. - HP and MySQL AB today announced that HP will offer new services for MySQL® database software.

As part of an agreement, HP will provide consulting, integration and support services for customers implementing MySQL Network database software into their technology environments. HP and its channel partners also will resell MySQL Network subscription services. HP plans to sell the services directly beginning in May and via channel partners in June.

The announcement was made at the annual MySQL Users Conference.

MySQL Users Conference 2006 - MySQL Cluster: New Features and Enhancements

If you are coming to my talk, make sure you know a bit about cluster beforehand. Being at Johan’s talk today was a good idea.

Or reading the manual chapter.

Otherwise you may end up being quite lost for a lot of the talk. Mine isn’t an intro to cluster one.

Up at 5:50am, dressed by 6:30am, and leaving the house by 7:10am to get on the VTA light rail by 7:30am. All because the tutorials start at 8:30am, and I want to catch the train instead of using up fuel...

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Up at 5:50am, dressed by 6:30am, and leaving the house by 7:10am to get on the VTA light rail by 7:30am. All because the tutorials start at 8:30am, and I want to catch the train instead of using up fuel...

Tags for this post: mysql() conference() mysqluc2006()

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Afternoon tutorial at MySQL Users Conference (2006) is Replication for Scaling and High Availaility by Jeremy Cole (not this jeremycole) from Yahoo!.

Jeremy starts with a general overview of replication and provides some detail on general things replication is and is not. There is no limit to the number of slaves, but there is a limit on the bandwidth that a server can serve so with too many slaves the master could be overloaded. If you need massive numbers of replicated machines it's better to not have them all pointed at one master. It's better to have a relay slave who's job it is to stand in the middle and serve data out to groups of machines.

Master to master replication is possible, but there are lots of problems. Primary keys can be carefully disignated but the bottom line is that when it fails it's hard to know what …

If you’re at the MySQL Users Conference 2006, we’d love if you took notes and shared it with everyone… There are some cool tools like Gobby or SubEthaEdit that some folk might enjoy, since there’s a WiFi network available.

We’ve got a UC2006 Category on the wiki that you might find handy. Go ahead, create a wiki account, and start writing some useful content :-)

The name of the wine seems appropriate to MySQL and writing

If you wanna chat (for collaborative writing purposes and not for skipping out on your session!) there’s #mysql-uc …