Installing and managing a highly available MySQL infrastructure can be really tedious. Solutions to facilitate database and system administrator’s task exist, but few of these cover the complete database lifecycle and address all the database infrastructure management requirements. Severalnines’ product ClusterControl is probably the only solution that covers the full infrastructure lifecycle and is also able to provide a full set of functionalities required by database cluster architectures. In this article, I will show how to install, monitor and administrate a database cluster with ClusterControl.

Introduction

Severalnines is a Swedish company mostly composed of ex-MySQL AB staff. Severalnines provides automation and management software for database clusters. Severalnines’ ClusterControl perfectly fits this objective by providing a full “deploy, manage, monitor, and scale” solution. …

thanks…really help me out.

The early release of Fedora 20 disallowed installation of MySQL Workbench but the current version allows it. Almost like Tom Cruise’s Edge of Tomorrow without the drama. All you need to do is follow my earlier instructions for installing MySQL on Fedora 20. I’d check your kernel to know whether it’s supported. You can check that with this command:

<shell> uname -r

My Fedora is at the following version:

3.14.8-200.fc20.x86_64

Then, you can install MySQL Workbench with yum, like this:

<shell> sudo yum install mysql-workbench

It generates the following log file, and if you have Oracle 11g XE …

When you're testing out a new version of MySQL in a non-production environment there is a temptation to go wild and turn on all kinds of new features.  Especially if you're reading the changelogs or the manual and scanning through options.  You want to start with the most reasonable set of defaults, right?  Maybe you're even doing benchmarks to optimize performance using all the new bells and whistles.

Resist the temptation!  If your goal is to upgrade your production environment then what you really want is to isolate changes.  You want to preform the upgrade with as little to no impact as possible.  Then you can start turning on features or making changes one-by-one.

Why?  Anytime you're doing a major upgrade to something as fundamental as your core RDBMS, there are many ways things can go wrong.  Performance regressions & incompatible changes, client/server incompatibilities …

Some MySQL DDL commands such as CREATE TABLE and DROP TABLE support an IF [NOT] EXISTS option which allows you to downgrade the error to a warning if you try to create something that already exists or drop something that doesn't exist.

For example this gives an error:

mysql> drop table sakila.fake_table; ERROR 1051 (42S02): Unknown table 'sakila.fake_table'

And this gives a warning:

``` mysql> drop table if exists sakila.fake_table; Query OK, 0 rows affected, 1 warning (0.00 sec)

Note (Code 1051): Unknown table 'sakila.fake_table' ```

You may also want to use IF [NOT] EXISTS for column-level changes such as ADD COLUMN and DROP COLUMN, but MySQL does not support that.

Read on for some examples of how to simulate IF [NOT] EXISTS using the …

A couple of months back, I wrote that we were looking to improve the quality of Planet MySQL. Today, I am very excited to share the results of this with the announcement of Planet MySQL: Meta.

What is Meta?

Meta is a new category of posts that appear on Planet MySQL, which is intended for posts that are more social and less technical in nature. That is to say that instead of all posts appearing in one central feed, blog authors will now be able to target their posts for either Planet MySQL or Planet MySQL: Meta.

Readers will also have a choice as to which categories of posts they would like to subscribe to:

The +more above denotes that as well as reducing noise surrounding the technical posts, we also recognizing that there is a social aspect to being part of the MySQL …

In order to expand the knowledge about database features of any kind, blogs are inevitable these days. Whether its Oracle, MySQL, or SQL Server blogs writers are contributing like never before and this log buffer edition skims some of it.

Oracle:

The Oracle Utilities family of products use Oracle standard technology such as the Oracle Database and Oracle Fusion Middleware (a.k.a. Oracle WebLogic).

OBIEE SampleApp in The Cloud: Importing VirtualBox Machines to AWS EC2.

The default value for the INMEMORY_MAX_POPULATE_SERVERS parameter is derived from the …

For those of you lucky enough to come and listen to all the great talks within the MySQL Central @ Oracle OpenWorld this year, I’ll also be giving a talk about the MySQL sys schema this year.

This builds upon the talks that I’ve given in the past around Performance Schema, as well as some of the great looking talks on Performance Schema that are on the schedule this year by other MySQL @ Oracle engineers (see below).

The schedule builder is now live, here are some of the other interesting ones on my list that I’d like to attend:

• …

MySQL team is attending the PyCon Japan conference on September 13-15, 2014, our local colleagues will be available for your questions either at our MySQL booth or around the conference. We are also having a MySQL Lightening talk, please watch the conference schedule for any updates. 

Earlier this week I blogged about the MySQL Central @ OpenWorld tutorials. Let's focus today on the Hands-On Labs (HOLs), giving you the opportunity to get hands-on experience across a number of MySQL areas.

All HOLs will be held at the Nikko hotel. Here is the schedule:

Tuesday, September 30

DevOps Made Easy with MySQL Utilities

Charles Bell, Software Development Manager, Oracle - 10:15 AM - 11:15 AM Hotel Nikko - Bay View

Practical Introduction to MySQL Monitoring for Oracle Enterprise Manager Users

…