This post is the first in a series of articles which serves to highlight the services of the Launchpad platform which hosts the MySQL Server, MySQL Forge, MySQL Sandbox and Drizzle Server projects. I will be walking you through the various pieces of the platform and provide examples of using each of the services. I will cover in depth the source code management services which all three projects now rely upon. The code management services are the critical piece of the development platform. In addition, I will show you how to use the Blueprints, Bugs, Answers and Translations services that many MySQL ecosystem projects, including the MySQL Sandbox and …

This article explains how to set up a properly functioning C/C++ development environment on Linux. The article is aimed at developers interested in contributing to the Drizzle server project, but the vast majority of the content applies equally well to developers wishing to contribute to the MySQL server or any other open source project written in C/C++

IMPORTANT: This article doesn't get into any religious battles over IDEs or particular editors. IDEs and editors are what you use to edit code. What this article covers is the surrounding libraries, toolchain, and dependencies needed to get into the development or contirbution process. That said, go Vim.

The examples shown use the Debian/Ubuntu methods of obtaining code packages and …

I’ve been following the Drizzle project with some interest. There’s a lot to like about it. But you know what I like most about the project?

No dual licensing. Just plain GPL, version 2.

I personally think this is the foundation for why people are empowered, why there is excitement, why there is progress, [...]

well.. in my head anyway.

mysql 6.0.6 alpha was recently released, and with it a whole slew of patches (as one would expect).

So I got to thinking.. the problem with forking a large existing project is that you lose the testing that millions of people banging away at your product gives you.

going through the release notes I thought I saw 1 or 2 things that might be relevant to drizzle.

for example.. sorting.

  Incompatible Change: Certain characters were sorted

  incorrectly for the following collations: TILDE and GRAVE ACCENT

  in big5_chinese_ci; LATIN SMALL LETTER J in cp866_general_ci;

  TILDE in gb2312_chinese_ci; and TILDE in gbk_chinese_ci… Bug 25420

I am no way an expert in the mysql/drizzle internals but …

Protobuf comes with a minor problem: it does not have support for handling "type tagged structures", that is, something reminiscent of objects in OOP lingo, so if one is going to have a heterogeneous sequences of messages, you have to roll it yourself. For that reason, I added a transport frame for the messages in the binary log that wraps each with some extra information. In addition to allowing the binary log to be a sequence of messages, it also adds some integrity-checking data and simplifies some administrative tasks.

The format of each message in the sequences is given in the table in the margin. where the length is a specially encoded …

So, following the lead of Brian, I spent a few hours of the weekend to create a very simple replication scheme for Drizzle using protobuf for specifying the binary log events.

Since we are developing a replication for a cloud, there are a few things we have to consider:

• Servers are unreliable. We shall not trust server, but we shall expect them to crash at the worst possible time (Murphy is a very good friend of mine, you know. He must be, since he visits me very often.) This means that we need to have support to allow statements to be sent to the slaves before the transaction is complete, which means that we need to support …

This is the second post in the weekly series "Last Week in Drizzle" where we summarize the efforts of various folks in the Drizzle community over the past week. This edition encapsulates the work and conversations taking place over the past two weeks as both a vacation and procrastination took their toll on getting the weekly edition done. As with the week before, a number of developers and community advocates continue to refactor the code base, come together in discussions on the mailing list, and brainstorm on how to solve the tough problems that Drizzle is trying to address. Mark Schoonover and myself are now collaborating on the Last Week in Drizzle series. Thanks Mark!

Growth in the Drizzle Community

The week before last, we had 148 subscribers to the …

For those that have been using Planet MySQL to follow the progress of Drizzle, we now have our own Planet Drizzle.

You can also get a RSS feed directly from http://feeds.feedburner.com/drizzle

I started playing around with protobuf when doing some stuff in Drizzle (more about that later), and since the examples where using IOStream, the table reader and writer that Brian wrote is using IOStreams. Now, IOStreams is pretty powerful, but it can be a pain to use, so of course I start tossing together some utilities to make it easier to work with.

Being a serious Perl addict since 20 years, I of course start missing a lot of nice functions for manipulating strings, and the most immediate one is join, so I wrote a C++ IOStream manipulator to join the elements of an arbitrary sequence and output them to an std::ostream.

In this case, since the I/O Manipulator takes arguments, it has to be written as a class. Recall that …

Morning, I saw Monty's post asking for contribution to drizzle's i18n efforts. I did checked out Hindi language and well I must say translation is a fun activity. 
If you think that will be as easy as using some online translation tool (I tried Google Translate), you may be wrong. Many sentences that make direct sense in English get completely screwed when translated word by word. Sometimes they are translated into a perfect meaningful sentence and that is when you can laugh out loudly.
As of now I'm doing Hindi (already 80 translations down) and next I'm gonna pick Punjabi. Wow! I know languages.