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Displaying posts with tag: installation (reset)
Configuring and running MySQL Fabric 1.4.2

To install and run MySQL Fabric, we need:

  • Python 2.6 or 2.7
  • Connector Python (MySQL Fabric-aware Version 1.2.1 or later)
  • One or more MySQL servers installed and running (5.6.10 or later):
    • Backing Store
    • Managed Servers
  • MySQL Utilities 1.4.2 or later

Python 2.6 or 2.7

We can use the following command to check whether python is installed in our machine or not:

$ python --version

If you don't have the appropriate version installed, please, read through the following web page and find out how to download and install python 2.6 or 2.7:

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PostgreSQL Install-Windows

A number of folks have asked me to create a post of a PostgreSQL installation on Windows. So, here is my step-by-step PostgreSQL 9.3 installation.

Download PostgreSQL Database

You can start the download of PostgreSQL from this site. It leads you to the EnterpriseDB site, where you can download the prepackaged software.

Install PostgreSQL 9.3 on Windows

These steps walk you through installing PostgreSQL and the the pgJDBC v9.3, psqlODBC (32 bit), and psqlODBC (64 bit) packages.

  1. The first thing you need to do is launch the …
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Installing MySQL 5.7 DMR3 with the official yum repos

In case you missed Norvald’s post, the official yum repos now support the 5.7 development releases!

The MySQL manual documents how you can enable 5.7, but I wanted to also provide a quick demonstration since using yum sub-repositories is a new concept to me.

Installing the repo

All versions of MySQL are downloaded via a single repo file, which can be downloaded from:

You can copy the URL from the download page directly into a yum localinstall command. For example on Enterprise Linux 6, the command is:

sudo yum localinstall

Activating …

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Old and new MySQL verbosity

I was pleased to see Morgan’s announcement about a fix to an old problem of mine. In March 2012 I complained about MySQL verbosity during installation.

In MySQL 5.7.3, this behavior was changed. While the default is still as loud as it can, you can now add an option (log_error_verbosity) to send only errors to STDERR, which allows you to hide the output of mysql_install_db, and still get the errors, if they occur.

Well done!

However, the same obnoxious verbosity is also in MariaDB 10.0.x. Since I discussed this specific bug with a few MariaDB developers early in 2012, I was disappointed to see this same output when running mysql_install_db with MariaDB. Here’s the same appeal: MariaDB …

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Installing MySQL Fabric on Windows

One of the major announcements made at the MySQL Connect conference just over a week ago was the labs release of MySQL Fabric, which supports management of MySQL Server farms in a sharded deployment.  It’s available on, which means it is just an early release with some rough edges.  One of those rough edges that I’d like to see resolved soon is that it’s difficult to install on Windows, as there is no installer package provided.  There is some documentation on how to install Fabric (you’ll find it in section 15.8.2 of the PDF that makes up the downloadable documentation), but it’s focused on Linux platforms, so I thought I would post the process that …

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Tungsten-Replicator 2.1.1 with better installation and built-in security

UPDATE 2013-08-30: Tungsten 2.1.2 was released.

UPDATE 2013-08-23: We have found a few problems that happen when replicating with RBR and temporal columns. We will have to publish an updated bugfix release quite soon.

Tungsten Replicator 2.1.1 is out. Key features in this release are:

  • A better installer, of which we have already given a preview in tpm, the multi-master composer. The new installer allows faster and more powerful deployments of both single and multiple masters topologies. And it also allows the next feature:
  • Secured communication layer. Now the replicator data and administrative …
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Improved Security with MySQL 5.6

Installed on a clean CentOS 6.4 AWS instance.

sudo su -
cd /tmp
tar xvf MySQL-5.6.13-1.el6.x86_64.rpm-bundle.tar
yum install -y libaio perl
rpm -i MySQL*.rpm

The following output is the sign that security is being considered with new MySQL versions. Woot!

You will find that password in '/root/.mysql_secret'.

You must change that password on your first connect,
no other statement but 'SET PASSWORD' will be accepted.
See the manual for the semantics of the 'password expired' flag.

Also, the account for the anonymous user has been removed.

In addition, you can run:


which will also give you the option of removing the test database.
This is strongly recommended for production servers.

See the manual for more instructions.

Please report any problems with the …
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How to Scale Joomla on Multiple Servers

July 2, 2013 By Severalnines

Joomla! is estimated to be the second most used CMS on the internet after WordPress, with users like eBay, IKEA, Sony, McDonald’s and Pizza Hut. In this post, we will describe how to scale Joomla on multiple servers. This architecture not only allows the CMS to handle more users, by load-balancing traffic across multiple servers. It also brings high availability by providing fail-over between servers.


This post is similar to our previous posts on web application scalability and high availability:

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How to Cluster Magento, nginx and MySQL on Multiple Servers for High Availability

June 17, 2013 By Severalnines

Magento is an open-source e-commerce platform built on Zend PHP and MySQL. It is widely adopted by online retailers with some 150,000 sites known to use it. Single server setups are easy to set up, but if your store is a huge success, then you probably need to think about clustering your environment with multiple servers. Clustering is done at the web, database and file-system level, as all web nodes need access to catalog images. 


This post is similar to our previous posts on scaling Drupal and WordPress performance, and focuses on how to scale Magento on multiple servers. The software used is Magento version , nginx, HAProxy, MySQL Galera …

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Scaling Wordpress and MySQL on Multiple Servers for Performance

June 11, 2013 By Severalnines

Over the years, WordPress has evolved from a simple blogging platform to a CMS. Over seven million sites use it today, including the likes of CNN, Forbes, The New York Times and eBay. So, how do you scale Wordpress on multiple servers for high performance? 


This post is similar to our previous post on Drupal, Scaling Drupal on Multiple Servers with Galera Cluster for MySQL but we will focus on Wordpress, Percona XtraDB Cluster and GlusterFS using Debian Squeeze 64bit.

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