Install Percona XtraDB Cluster on CentOS 6.2

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Percona XtraDB Cluster is a new high availability and high scalability solution for MySQL users. XtraDB Cluster integrates Percona Server with the Galera library of high availability solutions in a single product package. Percona XtraDB is an enhanced version of the InnoDB storage engine for MySQL and MariaDB. It has much faster performance than InnoDB and better scalability on modern hardware.
Continue reading “Install Percona XtraDB Cluster on CentOS 6.2”

Download CentOS 6.2 iso

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CentOS 6.2 Downloads

You can download CentOS 6.2 via the web/ftp server or via BitTorrent (recommended) client.

CentOS 6.2 DVD ISO downloads

  • Download CentOS 6.2 32 bit DVD ISO CentOS-6.2-i386-bin-DVD1.iso and CentOS-6.2-i386-bin-DVD2.iso
  • Download CentOS 6.2 64 bit DVD ISO CentOS-6.2-x86_64-bin-DVD1.iso and CentOS-6.2-x86_64-bin-DVD2.iso

CentOS 6.2 DVD ISO Torrents

Torrent files for the DVD’s are available at the following location:

  • Download CentOS 64 i386 torrent file
  • Download CentOS 64 x86_64 torrent file

CentOS Warning: RPMDB altered outside of yum

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Yum is an automatic updater and package installer/remover for rpm-based systems. It automatically computes dependencies and figures out what things should occur in order to safely install, remove, and update rpm packages. Yum also efficiently and easily retrieves information on any package installed or available in a repository to the installer.

When trying to update your server via the yum command you might see the following error / warning message:

Warning: RPMDB altered outside of yum.

Total download size: 28 k
Installed size: 53 k
Is this ok [y/N]: y
Downloading Packages:
nethogs-0.8.0-1.el6.x86_64.rpm | 28 kB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction

Warning: RPMDB altered outside of yum.

Installing : nethogs-0.8.0-1.el6.x86_64 1/1

Installed:
nethogs.x86_64 0:0.8.0-1.el6

Complete!

How do you fix this problem?

+George Rushby

CentOS Change Timezone

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After installing CentOS we sometimes see that the date is not in our desired timezone, instead it defaulted to the PST timezone.

Correcting your timezone is an easy operation, so here is a quick guide to change your CentOS timezone configuration file.

Firstly you’ll need to know your timezone and/or country, a list can be found in /usr/share/zoneinfo/

The more generic procedure to change the timezone is to create a symlink to file /etc/localtime

OR you can copy and replace the current localtime setting

To verify that your timezone is changed use the date command: