August 25, 2014 By Severalnines

Are you going in production with Galera Cluster for MySQL? Here are 9 tips to consider before going live. These are applicable to all 3 Galera versions (Codership, Percona XtraDB Cluster and MariaDB Galera Cluster). 

1. Galera strengths and weaknesses

There are multiple types of replication and cluster technologies for MySQL, make sure you understand how Galera works so you set the right expectations. Applications that run on single instance MySQL might not work well on Galera, you might need to make some changes to the application or the workload might not be appropriate. We’d suggest you have a look at these resources: 

• Tutorial on …

We've all heard the hype.  MySQL 5.6 is packed with amazing new features that address all our database problems.  5.6 deals with replication and HA and performance and monitoring and security and features.  It just may cure cancer.

In fact it's been out for ages.  It went GA  …

MySQL Replication allows servers to copy changes from one instance to another. Take the MySQL for Database Administrators course to learn about replication, including:

• How to set up a replication environment
• Complex topologies
• Replication types
• Global transaction IDs (GTIDs)
• MySQL Utilities
• Logs and threads

Replication is one of the many topics covered in the MySQL for Database Administrators course. You can take this 5-day instructor-led course as  

• Training-on-Demand: Start …

Get the best from both worlds with bundled packages: a training course and a certification exam voucher. You save 20% when you buy training and certification in discount packages.

Training helps you acquire product expertise. Certification proves this expertise to your future employers.

There are two MySQL Discount Packages: MySQL Database Administration and MySQL Developer.

For more information about the authentic MySQL curriculum, go to …

Keeping user account details secure is always at the forefront of a Database Administrator's mind. However, users want to get up and running as soon as possible without complex login procedures.

You can learn more about this and many other topics in the MySQL for Database Administrator course.

For example, MySQL 5.6.6 introduced a new utility: mysql_config_editor, which makes secure access via MySQL client applications much easier to establish, while still providing a good measure of security.

The mysql_config_editor stores a user's authentication details in an encrypted login file called mylogin.cnf. This login file is readable and writable for the user who invokes the utility, and invisible to everyone else. You can use it to collect all your …

Join 25,000 others and follow Sean Hull on twitter @hullsean. Are you serious about backups? If you’re just using Amazon EBS snapshots, that may not be sufficient. There’s a good chance it won’t protect you against your next data loss. That’s why I like to have a few different types of backups Also: 5 more […]

MySQL Utilities provide a collection of command line utilities that make it easy for database administrators to maintain and administer MySQL servers. The utilities perform a range of otherwise complex operations via a simple command, making DBAs more efficient and productive.

There are utilities for copying databases, comparing databases running on different servers, checking disk usage and for redundant or duplicate indexes, automatic failover, verifying replication configuration, cloning a running server, and working with audit logs. You can use all these utilities either standalone or with MySQL Workbench.

You can learn about MySQL Utilities and much more by taking the …

If you have a busy schedule or too much going on to attend a live training session, Training-on-Demand is for you. With Training-on-Demand, you can watch recorded classroom sessions taught by top Oracle instructors and gain hands-on experience with a dedicated lab environment.

In viewing the classroom sessions, you access streaming lectures on your desktop or tablet, with the ability to fast-forward, pause, rewind and search.

MySQL for Database Administrators is available as training-on-demand. This course is designed for DBAs and other database professionals. Learn to configure the MySQL Server, set up replication and security, perform database backups and performance tuning and protect MySQL …

Demonstrate your expertise with MySQL 5.6, and improve your career prospects, by taking the new MySQL 5.6 certifications:

• Oracle Certified Professional MySQL 5.6 Database Administrator
• Oracle Certified Professional MySQL 5.6 Developer

These certifications give you a competitive advantage, by proving you have a skill set that is in demand, worldwide, while demonstrating your commitment to continuous learning.You can sign up now for these certifications via PearsonsVue.

To pass these certifications you need to have a good knowledge of the relevant areas of MySQL and significant hands-on …

My students required way to remove all their tables, views, and constraints from a MySQL database (or the alias schema). Since they’re using referential or foreign key constraints, I also wrote one procedure to drop all foreign key constraints from a database. There’s also another to drop views. The final stored procedure calls the procedure that drops foreign keys, then calls the procedure to drop views before dropping all the tables.

Here’s the dropForeignKeys stored procedure:

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-- Provide a log file debugging statement.
SELECT 'DROP PROCEDURE IF EXISTS dropForeignKeys';
 
-- Conditionally drop the procedure.
DROP PROCEDURE IF EXISTS …