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Announcing Percona Server 5.5.25a-27.1

Percona is glad to announce the release of Percona Server 5.5.25a-27.1 on July 21st, 2012 (Downloads are available here and from the Percona Software Repositories).

Based on MySQL 5.5.25a, including all the bug fixes in it, Percona Server 5.5.25a-27.1 is now the current stable release in the 5.5 series. All of Percona‘s software is open-source and free, all the details of the release can be found in the 5.5.25a-27.1 milestone at Launchpad.

New Features:

  • Percona Server …
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Security fixes in MySQL & critical patch updates

This is the third time MySQL has made an entry into the Oracle Critical Patch Update Advisory service. The first time, we at Team MariaDB came up with an analysis: Oracle’s 27 MySQL security fixes and MariaDB.

Security is important to a DBA. Having vague explanations does no one any good. Even Oracle ACE Director Ronald Bradford chooses to ask some tough questions on this issue. Recently we found a bug in MySQL & MariaDB and did some …

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Mozilla DB News, Fri 20 July

The past few weeks have been quite a blur! On Tuesday I returned home from 24 days away, speaking at the 1st Latin American conference on MySQL, NoSQL and Cloud Technologies put on by the fabulous Santiago Lertora of Binlogic. This was a spectacular event with a few hundred people attending. Afterwards I did the Oracle Technology Network Tour of Latin America, north leg. After 7 countries, 14 talks and over 40 hours on a plane, I am glad to be home!

I am thrilled that we were able to interview XKCD’s Randall Munroe for OurSQL‘s celebration of 100 – …

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Recent Presentations in Cali, Colombia

On July 4 I gave two presentations at the OTN Tour Day, and on July 5 I have three presentations at the MySQL Training Days. This was my 3rd visit to Colombia and it was great to see a receptive audience. Thanks to Robin for organizing the events in 2010, 2011 and 2012.

You can download all presentations from the provided links.

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Video interviews at OTN Colombia

The following are short interviews from the Oracle Technology Network (OTN) event in Cali, Colombia. One with myself and another with Sheeri Cabral.


These Videos are sourced from OTN Tour Latin America 2012.

Amazon EC2 now powered by high performance storage (benchmark)

A while ago I had a discussion with someone about the future of server infrastructure. Among other things, we were wondering whether companies will continue to run on dedicated servers or if eventually everyone just ends up in a Cloud environment. During the discussion I raised a point that in principle Cloud is a great idea that will keep attracting more and more people, but it is missing one important piece that stops many from using it – a high performance storage. Apparently, this has just changed.

Yesterday I received an e-mail announcing a new EC2 instance type – hi1.4xlarge. It features 16 logical CPUs (35 ECUs), 60GB of RAM, and… two 1TB SSD-based disk volumes! These are great specs that should work for nearly any database. Even assuming someone has a MySQL database larger than 2TB, not all tables will require fast storage, while more disk space can be easily added by attaching regular EBS volumes.

I decided …

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MySQL Cluster 7.1.23 has been released

The binary & source versions for MySQL Cluster 7.1.23 have now been made available at https://www.mysql.com/downloads/cluster/7.1.html#downloads (GPL version) or https://support.oracle.com/ (commercial version).

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.1.23 (compared to 7.1.22) are available from the 7.1.23 Change log.

MySQL Cluster 7.2.7 released

The binary version for MySQL Cluster 7.2.7 has now been made available at http://www.mysql.com/downloads/cluster/ (GPL version) or https://support.oracle.com/ (commercial version).

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.7 (compared to 7.2.6) are available from the 7.2.7 Change log.

Log Buffer #278, A Carnival of the Vanities for DBAs

Some parts of the world has winter in swing, while the others are savoring or suffering through summers. This variation in weathers is so in-sync with the variety of blog posts sprouting all over the web especially regarding the database technology. This mixed flavor of the database blogs has been captured by this Log Buffer [...]

Setting up RAID0 in Ubuntu 12.04 in AWS High I/O

Amazon announced high I/O instances today. This is huge for anyone with a database larger than available memory, as it’s been a complete nightmare dealing with EBS up till now. Now your Cassandra, MongoDB, MySQL, or whatever your using should be able to perform well without requiring keeping your entire dataset in memory.

With each instance you get 2x1TB of disk. In this tutorial I’ll be setting it up as a RAID0 to get a single 2TB disk which should deliver excellent performance.

Before you get started, make sure you’ve got mdadm installed:

apt-get install mdadm

To begin, check fdisk and make sure your 1TB drives are mounted.

root@ip-10-140-128-232:~# fdisk -l

Disk /dev/xvda1: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders, total 16777216 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / …

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