So, I’s been a long time since I wrote my last post here. Lots of work and almost no new interesting technologies in my work caused such delay. But today I’m proud to announce release of really interesting project: MySQL Master-Master replication manager - set of flexible scripts for management different MySQL deployment schemes with master-master replication involved.

More information about this software could be found in detailed announce in Peter Zaitsev blog (actually this software was created by me for his company’s client) or at project page. All your questions and suggestions welcomed in …

The NDB/Connectors have added support for Ruby, as well as Asynchronous Transaction support for Java, Python and Perl.

The Ruby support, of course, means that new you can interact with your MySQL Cluster installation using the NDBAPI from all your Ruby code.

The async stuff is especially cool, because it means you can send transactions to the Cluster and get responses by way of callbacks defined in the connector language. So you can do something like this:

PLAIN TEXT

1. class testaclass(object):     
2.   def __init__(self, recAttr):
3.     self.recAttr=recAttr     
4.   def __call__(self, ret, myTrans):
5.     print "value = ", self.recAttr.get_value()
6.  
7. #snip
8.  
9. myTrans …

I've been given the go ahead to release my NDB/Connectors code. These connectors wrap the NdbApi for a variety of languages, including Python, Perl, Java and C# at the moment. I'm managing development using Launchpad, so go to

https://launchpad.net/ndb-connectors

To get the latest version or status of the code. If you would like to contribute, feel free to branch a copy of the source using bzr and send me a revision bundle. There is also an ndb-connectors team on launchpad you can join if you'd like to participate more directly in the development. For either of these options to work, you need to first sign the MySQL Code Contributor License Agreement to assign copyright of your contributions to MySQL, Inc.

I hope to have a mailing list set up soon for discussion.

So I've expanded the scope of the NDB/Python wrappers I was working on. Now I've got Python, Perl and C# wrappers working, at least for basic functionality. I've setup a trac instance and put a roadmap and all of that type of stuff up. If you are interested in hacking, let me know and we can talk about subversion access and all that.

For the moment, I've turned off code downloading. I'll post again when I've enabled it again.

If you happen to live somewhere around Delhi, India and you are curious to learn more about MySQL Cluster, make sure to RSVP for Kai's Workshop on this subject, which will take place on Friday, November 17, 2006, 6:00 PM at Value One, D 21 NDSE 1, Delhi. Space is limited, so hurry!

I personally will also mention MySQL Cluster during my talk about High Availability Solutions with MySQL that I will give at the Fachhochschule Oldenburg/Ostfriesland/Wilhelmshaven tomorrow.

If you happen to live somewhere around Delhi, India and you are curious to learn more about MySQL Cluster, make sure to RSVP for Kai's Workshop on this subject, which will take place on Friday, November 17, 2006, 6:00 PM at Value One, D 21 NDSE 1, Delhi. Space is limited, so hurry!

I personally will also mention MySQL Cluster during my talk about High Availability Solutions with MySQL that I will give at the Fachhochschule Oldenburg/Ostfriesland/Wilhelmshaven tomorrow.