Hi!

Thanks everyone who attended the hands-on lab session on MySQL Cluster at Oracle OpenWorld today.

The following are the links for the slides, the HOL instructions, and the HOL extra instructions.

Will try to summarize the HOL session below.

Aim of the HOL was to help attendees to familiarize with MySQL Cluster. In particular, by:

1. Learning the basics of MySQL Cluster Architecture
2. Learning the basics of MySQL Cluster Configuration and Administration
3. Learning how to start a new Cluster for evaluation purposes and how …

The client library — libmysqlclient — is part of the same source code repository as the server. It comes both as a dynamic link library (.so), also called a shared library, and as a static link library (.a). During the 5.7 development cycle, we’ve made several improvements to the library, which has resulted in a bump from ABI version 18 to version 20.…

Download MariaDB 10.0.22 Release Notes Changelog What is MariaDB 10.0? MariaDB APT and YUM Repository Configuration Generator The MariaDB project is pleased to announce the immediate availability of MariaDB 10.0.22. This is a Stable (GA) release. See the Release Notes and Changelog for detailed information on this release and the What is MariaDB 10.0? page […]

The post MariaDB 10.0.22 now available appeared first on MariaDB.org.

Here are the slides for my talk at Oracle OpenWorld 2015:

Enjoy!

Symantec published a blog post yesterday regarding MySQL and the Trojan.Chikdos.A as can be seen here

The Symantec post gives detail into the behavior of the Trojan and it’s effects on the Windows system registry, yet gives little detail as to how the required first stage (namely a malicious UDF) is injected, citing:

“In the latest Chikdos campaign that we observed, the attackers likely used an automated scanner or possibly a worm to compromise MySQL servers and install the UDF.”

I’m going to give my thoughts on the pre-requisites to infection here.

1. The MySQL server has poor network isolation (i.e. is likely accessible from everywhere e.g. …

During the last few weeks I’ve been testing and playing a bit with the new group-replication plugin available for MySQL 5.7. Before continuing I’d like to clarify some aspects: the plugin is only available in labs and is not yet ready for production. The current version is 0.6. I used 5.7.9 GA running in a Vagrant 3 nodes cluster with CentOS 7.
As an additional note, I’ve tested previous version of plugin 0.5 against 5.7.8.rc and there are some good changes, so I recommend starting with the GA version.

For the matter of my tests I’ve followed instructions from this post. It’s not as straightforward as it looks; there were some issues that needed to be handled, but I finally …

Recently at Percona Live Amsterdam I gave a talk titled Databases in the Hosted Cloud (I’m told I got a 4/5 rating for this talk). It was before AWS re:Invent, so obviously some of the details in the talk have changed. For one, now there is also Amazon RDS for MariaDB. But there has also been other changes, i.e. HP’s Public Cloud (HP Helion Public Cloud) will sunset January 31 2016.

That’s a slide from my deck. I basically have to …

Adding good content to Twitter can be a pain. I can’t do it during working hours, and I don’t have much time at night. But, the more content you have, the more followers you can gain, and the more your original tweets can be seen (hopefully). I have written several posts about using the latest Perl-Twitter API – Net::Twitter::Lite::WithAPIv1_1, so you might want to check these out as well.

– Use MySQL and Perl to automatically find, follow and unfollow twitter users

– Using Perl to retrieve direct messages from Twitter, insert messages into a MySQL database and then …

MySQL 5.7.9 has a new feature, that simplifies queries that deal with JSON data and makes more human-readable: inlined JSON path expressions. Now you can do following:

mysql> CREATE TABLE employees (data JSON);
Query OK, 0 rows affected (0,01 sec)

mysql> INSERT INTO employees VALUES ('{"id": 1, "name": "Jane"}');
Query OK, 1 row affected (0,00 sec)

mysql> INSERT INTO employees VALUES ('{"id": 2, "name": "Joe"}');
Query OK, 1 row affected (0,00 sec)

mysql> SELECT * FROM employees WHERE data->'$.id'= 2;

+--------------------------+
| data                     |
+--------------------------+
| {"id": 2, "name": "Joe"} |
+--------------------------+
1 row in set (0,01 sec)

Let’s take a closer look at the expression in the WHERE clause.…

MySQL 5.7 has been recently declared Generally Available and in it there is a set of new replication features. Over the last 6 years MySQL replication has evolved at a tremendous pace. MySQL 5.6 brought us a lot of new replication features, many that were ground breaking and yes, sometimes controversial.…