Tag: freesoftware

Starting as Chief Architect Replication with MariaDB Foundation

Here on August 1st, I am joining the MariaDB Foundation in a position as Chief Architect Replication. Who am I? I am a long term MariaDB developer; in fact I was one of the very first to join Monty in starting MariaDB back in 2009 (I think Sanja may have beaten me by a few… Continue reading Starting as Chief Architect Replication with MariaDB Foundation

Hacking a box of 240×320 displays with the ESP8266

For the last few days, I have been playing with some small displays we have lying around in Labitat. We have ninety-odd of them from an old donation, and I thought it would be cool to be able to use them for some fun projects. The displays are ET024002DMU with a built-in ST7787 controller. They… Continue reading Hacking a box of 240×320 displays with the ESP8266

FVWM and Java application window focus

I found the solution for a problem that has been annoying me for quite some time. I am using FVWM for a window manager. A few programs written in Java, most notably the Arduino IDE, will not accept keyboard focus. As soon as the window is given focus using normal window-manager commands, it immediately loses… Continue reading FVWM and Java application window focus

Improving replication with multiple storage engines

New MariaDB/MySQL storage engines such as MyRocks and TokuDB have renewed interest in using engines other than InnoDB. This is great, but also presents new challenges. In this article, I will describe work that I am currently finishing, and which addresses one such challenge. For example, the left bar in the figure shows what happens… Continue reading Improving replication with multiple storage engines

First steps with MariaDB Global Transaction ID

My previous writings were mostly theoretical, so I wanted to give a more practical example, showing the actual state of the current code. I also wanted to show how I have tried to make the feature fit well into the existing replication features, without requiring the user to enable lots of options or understand lots… Continue reading First steps with MariaDB Global Transaction ID

More on global transaction ID in MariaDB

I got some very good comments/questions on my previous post on MariaDB global transaction ID, from Giuseppe and Robert (of Tungsten fame). I thought a follow-up post would be appropriate to answer and further elaborate on the comments, as the points they raise are very important and interesting. (It also gives me the opportunity to… Continue reading More on global transaction ID in MariaDB

Global transaction ID in MariaDB

The main goal of global transaction ID is to make it easy to promote a new master and switch all slaves over to continue replication from the new master. This is currently harder than it could be, since the current replication position for a slave is specified in coordinates that are specific to the current… Continue reading Global transaction ID in MariaDB