I mentioned in a recent post (and another recent, related post) I was going to try Visual Studio 2012 Express (as opposed to VS 2010 Express) for building MySQL 5.6 and MariaDB 10.0. on Windows.

I followed the exact same steps, but MySQL 5.6.10 would not build without fatal errors in 2012 (whereas it worked fine with VS 2010). Unfortunately, the fail errors were not too descriptive, so not quite sure what to do yet to fix it. Here is a brief snippet for those interested:

...
Done Building Project "C:\...\bld\sql\udf_example.vcxproj" (default targets).
Done Building Project "C:\...\bld\ALL_BUILD.vcxproj" (default targets) -- FAILED.
Done Building Project "c:\...\bld\package.vcxproj" (default targets) -- FAILED.
...
Build FAILED.
...

"c:\mysql\mysql-5.6.10\bld\package.vcxproj" (default target) (1) -> …

Problem: You've a large table (or two) in a database on a partition that's running out of space, and you want to see if you can move that table to another drive.

Solution: Well, several actually. No silver bullet, but several options, some with conditions and some that require preparation. Let's look at some background information first.

How MySQL Stores Data 

OK, that's somewhat of an ambitious heading for an incidental paragraph or two, so to tone it back a bit, I'll summarise briefly.

• The data directory is where MySQL stores databases, and it's set by the datadir server option. Each database is stored in a subdirectory of the data directory. You can also save a considerable amount of space without moving data around, by …

It is an industry norm, supported by analyst researches that blogs are the best informal medium to share the information.  This unique medium provides readers with increased leverage in negotiating the hard turns in their technological lives. Log Buffer makes that leverage more powerful.

Oracle:

Alan Gardner is deploying Cloudera Impala on EC2 with Example Live Demo.

If you want to follow the real news and insight into the online learning revolution, then e-Literate has always been the blog to follow.

Tuula Fai wants to do things, and when he cannot he reverts to a little help.

…

I didn’t have time to answer all of the questions during Wednesday’s MySQL webinar, “5 Percona Toolkit Tools That Could Save Your Day,” but as promised, here are all of the questions and my answers. (A recording is available here.)

Q: One of the links to download the Percona Toolkit for MySQL (percona.com/get/percona-toolkit.tgz) doesn’t work!

A: You’re right, I made a typo, the correct link is percona.com/get/percona-toolkit.tar.gz. The other links are correct.

Q: Can you run pt-query-digest on an output of the slow log on a Windows …

MariaDB 5.5 is now inside of OpenBSD, the free, functional & secure OS. The work started a few weeks ago, and now you can get MariaDB via the ports tree. And yes, it will replace the current MySQL 5.1 that ships in the next release.

The MySQL 5.5 (and 5.6) documentation says, in Identifying the File Format in Use:

“… Otherwise, the least significant bit should be set in the tablespace flags, and the file format identifier is written in the bits 5 through 11. …”

This is incorrect for any version due to a bug in how the tablespace flags were stored (which caused only 1 bit to be reserved, rather than 6). This was all re-worked in MySQL 5.6, so someone obviously noticed it, but the documentation has been left incorrect for all versions, and the incorrect and misleading code has been left in MySQL 5.5. I filed MySQL Bug #68868 about the documentation.

File formats and names

There are file format names in the documentation and code for values 0 through 25 (letters …

MySQL 5.6 through the eyes of a custom storage engine MySQL plugin

MySQL is famous for its pluggable storage engine architecture which allows a DBA or an application developer to choose the right engine for the task. An application uses MySQL API and is isolated from all of the low-level implementation details at the storage level. As an example, the Cloud Storage Engine (ClouSE) enables existing MySQL applications to use cloud storage such as Amazon S3 or Google Cloud Storage to store its data. The application doesn’t need to be changed or even redeployed: with ClouSE, remote cloud storage will look like a better (ultra-scalable, durable, always-on) alternative to the local storage.

As you may already know, ClouSE now supports MySQL 5.6 release …

Check out who’s talking, and about what, at our annual event on all things MySQL, MariaDB and Cloud - straight after Percona Live!

As we mentioned earlier this week, we’re gearing up for Percona Live: MySQL Conference and Expo in a few weeks.

But of course, we’re getting particularly excited as we prep for the 2nd annual SkySQL and MariaDB MySQL & Cloud Database Solutions Day, which takes place on the day (Friday, April 26) right after Percona Live: MySQL Conference and Expo.

read more

Check out who’s talking, and about what, at our annual event on all things MySQL, MariaDB and Cloud - straight after Percona Live!

As we mentioned earlier this week, we’re gearing up for Percona Live: MySQL Conference and Expo in a few weeks.

But of course, we’re getting particularly excited as we prep for the 2nd annual SkySQL and MariaDB MySQL & Cloud Database Solutions Day, which takes place on the day (Friday, April 26) right after Percona Live: MySQL Conference and Expo.

read more

Collaborate is a huge show that is the Independent Oracle User Group’s big yearly show and for 2013 it will be in Denver. There are several MySQL sessions of note and I have noted some below. By the way i will have new MySQL stickers available at the MySQL Demo Pod on the show floor but rules say I can not just leave them around — you will have to ask for them.

• Session #464 – Demystifying MySQL for Oracle DBAs and Developers
  Mon. Apr. 8 11:00 am – 12:00 pm
  Mile High Ballroom 2C

  Abstract: MySQL continues to be the world’s most popular database management system for the Internet. This session provides a fast-paced introduction to the MySQL architecture, core features, best practices, and core performance areas. A MySQL version of OFA will be shown as a best practice. MySQL features will be taught from a perspective that is easy for attendees …