Home > Uncategorized > Database: Postgresql Asynchronous synchronization with Bucardo on CentOS6

Database: Postgresql Asynchronous synchronization with Bucardo on CentOS6

In order to provide synchronization between two WAN sites (high latency), you would want an asynchronous replication solution.

For our instance, Bucardo allows multi-master, which is what we wanted.

This is (hopefully) the first post related to a full configuration of bucardo. For some more info, refer to Bucardo multi-master for PostgreSQL.

Install postgresql from the postgresql repo:

1) Open each .repo in /etc/yum.repos.d and add the following below each [section]
2) Add the repo you wish from http://yum.pgrpms.org/repopackages.php

wget http://yum.pgrpms.org/8.4/redhat/rhel-6-i386/pgdg-centos-8.4-3.noarch.rpm
rpm -ivh pgdg-centos-8.4-3.noarch.rpm

Which will install /etc/yum.repos.d/pgdg-84-centos.repo

3) Go ahead and install the postgresql you need:

yum -y install postgresql84 postgresql84-libs postgresql84-devel postgresql84-server

Install bucardo and it’s dependencies:

1) The perl-DBIx-Safe package is not available in the CentOS-base repo, but is available in the Fedora repo:

echo [fedora_repo] >> /etc/yum.repos.d/fedora_repo.repo #allow yum access to the fedora repo
echo name=fedora_repo >> /etc/yum.repos.d/fedora_repo.repo
echo baseurl=http://download1.fedora.redhat.com/pub/epel/\$releasever/\$basearch/ >> /etc/yum.repos.d/fedora_repo.repo
echo enabled=1 >> /etc/yum.repos.d/fedora_repo.repo
echo skip_if_unavailable=1 >> /etc/yum.repos.d/fedora_repo.repo
echo gpgcheck=0 >> /etc/yum.repos.d/fedora_repo.repo

2) Go ahead with the installation:

yum -y install perl-DBI perl-DBD-Pg perl-DBIx-Safe perl-version bucardo

3) Continue with “Create the Bucardo database”: http://bucardo.org/wiki/Bucardo/Installation

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