A screencast about the MariaDB release process.
(I recommend watching it in full screen 720p, so you can see the details.)
Some links mentioned in the video:
It is not a secret that we’ve been kicking the tires and playing with JIRA for project management. After using it since the beginning of the year most of us like the feel of it and we’ve decided that it makes sense to start using it more.
As you know, the MariaDB project has many fragmented resources. We report bugs in Launchpad. We store our plans in worklog. We’ve never used the Launchpad Blueprint feature for this very reason. We don’t use Launchpad Answers because we have the Knowledgebase.
With this move to hosted JIRA (yes, this is an important link: …
[Read more]Over the past few days extensive conversations around a new security vulnerability in MariaDB and MySQL have taken place.
It all started as a chain reaction when Monty Program publicly disclosed information about the flaw they had found and about how to make sure your MariaDB and MySQL installations can be fixed. The initial information got assigned the security vulnerabitlity identifier CVE-2012-2122 and the contents can be seen e.g. here http://seclists.org/oss-sec/2012/q2/493.
The bug was found two months ago on April 4th.
Before disclosing the information publicly, given the seriousness of this bug and considering the millions of MySQL and MariaDB installations deployed worldwide, Monty Program informed the biggest distributors of MySQL and MariaDB as a precaution.
On April 6th, Monty Program informed Oracle about it in bug report …
[Read more]We haven’t posted any Windows benchmarks for a while, and MariaDB for Windows contains some specific improvements which might not be widely know since we haven’t talked much about them yet. This post is an attempt to fix that. We’ll also share current MySQL 5.5 numbers.
My setup is an 8 core 2 socket server (yes, a little bit dated for today, but it is the best machine I have at my disposal), 10K SAS disks with RAID1. I ran sysbench 0.4 single table / 1,000,000 records. I ran the benchmark over a network, with the number of concurrent clients ranging from 4 to 4096.
Here is what OLTP-readonly throughput looks like:
Many people rightfully remark that …
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1. Percona Toolkit
Percona Toolkit (aka Maatkit and Aspersa) is must have collection
of advanced command-line tools which helps in performing tasks
that are too difficult or complex to perform manually.
2. Mydumper
Mydumper is a high-performance multi-threaded backup/restore tool
for MySQL. It’s up to 10x faster compared to mysqldump, can take
consistent snapshots and provides File compression on-the-fly.
Though it’s still under active development but is well
tested/used in production on some large installations.
3. MySQL Master HA
This tool helps to maintain your Master-Slave replication setup.
A primary objective is automating master fail-over and slave …
We’re quite happy that we’ve released four major releases that are production ready (better known as generally available or GA in the MySQL world) in the last 26 months. That is just a little over two years, and a whole lot of features. In that same time, MySQL has seen one GA release (MySQL 5.5) and we’re all eagerly awaiting the upcoming MySQL 5.6.
You’ll note that we built MariaDB 5.1, 5.2, and 5.3 based on the MySQL 5.1 codebase. A significant number of features went into MariaDB 5.3 (our biggest GA release to date), with the biggest changes in the optimizer in over a decade. There were also many replication based …
[Read more]I have a friend who is fond of telling a story from way back in November 2008 at the OpenSQL camp in Charlottesville, Virgina. This was relatively shortly after we had announced to the public that we’d started something called Drizzle (we did that at OSCON) and was even closer to the date I started working on Drizzle full time (which was November 1st). Compared to what it is now, the Drizzle code base was in its infancy. One of the things we hadn’t yet sorted out was the rewrite of the replication code.
So, I had my laptop plugged into a projector, and somebody suggested opening up some random source file… so I did. It was a bit of the replication code that we’d inherited from MySQL. Immediately we spotted a bug. In fact, between myself and Brian I think we worked out that none of the error …
[Read more]This week we talk about numeric data types in MySQL.
News/Events/Feedback
OurSQL Listener Jesper Hansen was nice enough to take a screen shot of
episode 0 of the ourSQL podcast hitting 12,345 downloads.
Conferences:
MySQL Innovation Day Schedule Tuesday June
5th, Redwood Shores, CA. Register here (free). Content will be
available via live stream, so save the date!
In this episode we talk about string data types, comparing them to the ISO:2003 SQL standard.
Gerry has joined Tokutek - Congrats Gerry! We interviewed Martin from Tokutek in episode 86.
Conferences:
MySQL Innovation Day Schedule Tuesday June 5th, Redwood
Shores, CA. Register here (free). Content will be
available via live stream, so save the date!
The explain statement can be an important tool for understanding how a query is being executed and what you can do to make it run better. Although the output of EXPLAIN is relatively straightforward it can be confusing to inexperienced users or can be mangled by terminal wrapping.
To help with these problems as well as provide a pastebin for MariaDB developers to share explains during development we created The MariaDB/MySQL Explain Analyzer. This tool:
This …
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