Many of the MySQL team use IBM computers by preference to do their developing on; and I know that, for some, a lot of the reason was the support for Linux.
Now Lenovo owns IBM’s hardware business, but it seems they are dropping support for Linux (that’s a Slashdot link, because, as always, the comments are as interesting as the story).
As some of you may already know, there are plans afoot (actually well underway) to standardize the myriad tools currently used to manage MySQL backup and restores into a generalized online backup API. Those regular readers of SysAdmin magazine will have noticed the excellent dual-part article by Thomas Weeks in the May and June 2006 editions. In both articles, Weeks hints at the online backup API in the works at MySQL.
One of the frustrations that MySQL DBAs currently have is the lack of a consistent, recommended backup strategy that is storage-engine agnostic. Currently, you have a wealth of choices which work best depending on your use of MyISAM, InnoDB, as well as the size of your data set and the downtime interval you can afford.
Greg Lehey, a senior software engineer at MySQL, has been tasked with the design and implementation of a generic online backup API for MySQL. …
[Read more]“reserved for child molesters and people who talk at the theatre”
(also Malcolm Reynolds if he takes sexual advantage of “Mrs. Reynolds”[1])
I’d like to add to that people who don’t merge their patches.
Special hell.
[1] If you don’t get the Firefly reference you haven’t watched Firefly enough. Go do that. Now. No, you can’t do work first. Firefly, now!
it’s also good to note that this is mostly tongue in cheek. although MERGE YOUR FRIGGEN PATCHES BEFORE PUSHING. Every time you don’t, a cute bunny and baby dies.
One of the things that MySQL is particularly good at it is supporting many different platforms, from Linux to Windows to Mac to really weird flavors of operating systems. In general, our documentation and, especially, our community ecosystem of authors and article contributions does tend to be heavily biased towards the *nix operating systems.
However, download statistics show that a significant (>40%) of MySQL Community Edition server downloads are for the Windows platform. My gut instinct is that a large percentage of these downloads are from developers who use Windows as their main development platform, regardless of whether their production platform runs on Windows.
Over the past six months or so, I have heard a number of complaints regarding the lack of quality articles and documentation that specifically focus on the Windows platform, from either an administrative or development angle. The MySQL forums for …
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Knoppix 5.0.1 available:
It looks quite nice, although some of the packages are very up to
date and others are quite old. MySQL comes with 5.0.21, so
there’s probably no distribution with a more recent MySQL version
at the moment.
No Markus, Ubuntu 6.06 Dapper actually comes with 5.0.21 just as well. On June 1. And with their new Casper system, the CD you download is actually a LiveCD and an Install CD all rolled into one! 5.0.22 is a security release, for what its worth…
After reading about recursion and stack frames, I decided that I'd re-implement a computer strategy game. This fun game has various implementations and various names, including Chain Reaction and Atom Smasher. However, few, if any, have implemented a network version with the game logic written in MySQL stored procedures.
This strategy game is addictive, hard to describe and simple to play. The board consists of a number of territories. The objective is to win all of the territory. Players gain territory by placing counters in territories, one per turn. Once a territory is claimed by a player, a competing player cannot claim the territory directly. Instead, when a player's turn causes counters to exceed the number of adjacent territories then counters are redistributed among adjacent territories and the adjacent territory is gained by the player. (In some …
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InnoDB has a mechanism to regulate count of threads working
inside InnoDB.
innodb_thread_concurrency is variable which set
this count, and there are two friendly variables
innodb_thread_sleep_delay and
innodb_concurrency_tickets. I'll try to explain
how it works.
MySQL has pluginable architecture which divides work between
mysql common code
(parser, optimizer) and storage engine. From storage engine's
point of view it works how
(very simplified):
mysql calls storage engine's methods:
read_row (there are a couple of methods like read by
index or sequential read or random read);
write_row;
update_row;
delete_row;
At start of each of these methods InnoDB checks count of already
entered threads,
and if this count is over
innodb_thread_concurrency then the thread …
I’ve decided to affectionally call the MySQL Workbench Product “The Anaconda”. It’s been a wrestle so far to get all the features and functionality I wanted in this product. Of course I’d much rather have seen this product at say version 0.5, or 0.6, as I would not feel as guilty towards my comments of a 1.0 product when I’m having issues. I also have great respect for Mike Zinner and this small team of GUI developers that are developing and supporting the MySQL GUI products. Nevertheless, here is my latest round of analysis of the product across various platforms.
Hardware
Machines
Operating Systems
For the purposes of these tests I’m going to run multiple OS’s installed on seperate drives to attempt to isolate and reproduce …
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In Korean there is no such word as "Federated". I learn this
while having to help the translator here translate my slides
:)
The closest word in Korean is the term "merge".
In MySQL a "merge" table though is nothing like a "federated"
table.
Oy Veh!
Landed last night in Seoul and got a ride into the city with a
few
others who are speaking at Linux World Korea. I have a Keynote to
do
today on the State of the Dolphin (aka MySQL) at the
Confernce.
Thanks to my normal lack of need to sleep I decided to go walking
at
6AM to see the city. Seoul is north enough to already be light
out at
that time of day so I could see everything, and at not deal
with
large crowds. Across from the hotel is the Buddhist temple
of
Bongeunsa, and I spent a couple of hours walking through it. Its
a
pretty amazing place, the art work and detail in the temples
are
impressive.
The odd point in the adventure? Having a Buddhist monk come up to
me
while I was in a temple and give me what turned out to be four
pounds
of steamed rice with beans baked all around it. I wasn't
sure
exactly what it was till I got back to the …