One project I created at MariaDB is libMariaS3 [source, documentation]. It is a lightweight simple LGPL licensed API to access Amazon S3 and compatible object storage implementations. We created it so that GPL v2.0 licensed projects could use S3 without the license incompatibility of Amazon’s Apache 2.0 licensed SDK.
MariaDB itself uses this for the new S3 storage engine coming in 10.5 and several other upcoming projects. I designed it to be easy to use for anyone outside of MariaDB just in case some other project would find it useful.
Continue reading Fixing an OpenSSL issue with Curl and Autotools
I have recently created a new library called libMariaS3 for a couple of teams at MariaDB which provides a simple C API to Amazon’s S3. This was created because we needed a library which could link to GPLv2 software and Amazon’s own library is Apache 2.0 licensed which is incompatible.
It is not a perfect code base because I had a very short amount of time to get the first release out but it was a very fun project to work on. It led me to take a quick look this morning at a couple of other things I have created in the past to see where they are at today.
Continue reading My Open Source projects that still live on
Gource is a tool which can take a source code tree and create beautiful visualisations out of it. I’ve used it a few times before for various projects. This weekend I spent a little bit of time playing with it and applying it to MairaDB Server to see what it would produce.
The end result can be seen on YouTube.
Continue reading MariaDB source visualisation with Gource
With MariaDB ColumnStore 1.1 Beta now released I quickly checked Twitter today to see what the response so far has been. I noticed that someone had posted up a benchmark comparison of MariaDB ColumnStore against a couple of other databases with data that doesn’t quite add up.
Continue reading Correcting MariaDB ColumnStore Benchmarks
Unlike most storage engines, MariaDB ColumnStore does not store its data files in the datadir. Instead these are stored in the Performance Modules in what appears to be a strange numbering system. In this post I will walk you through deciphering the number system.
If you are still using InfiniDB with MySQL, the system is exactly the same as outlined in this post, but the default path that the data is stored in will be a little different.
Continue reading How MariaDB ColumnStore’s filenames work
Sometimes network protocols don’t entirely behave as documented. Other times there is no documentation at all beyond code. Either way you can sometimes find a need to sniff the traffic of a connection to find out what is really going on.
Continue reading Protocol reverse engineering with tcpdump
Several years ago there was a fork of the unreleased MySQL 6.0 called Drizzle. It was designed to be a lightweight, cloud/web/UTF8 first database server with a microkernel style core. I worked for a while as one of the core developers of Drizzle until the corporate sponsor I worked for ceased funding its development.
Continue reading Part of my history inside InfiniDB/ColumnStore