High-Availability Openstack on a Shoestring Budget: Deploying a Minimal 3-Node Cluster
As OpenStack deployments mature from evaluation/development to production environments supporting apps and services, high-availability becomes a key requirement. In a previous post, we showed you how to cluster the database backend - which is central to...
ClusterControl 1.2.5 Released
The Severalnines team is pleased to announce the release of ClusterControl 1.2.5. This release contains key new features along with performance improvements and bug fixes. We have outlined some of the key features below. For...
Installing ClusterControl on an Existing MongoDB Replica Set Using a Bootstrap Script
So, your development project has been humming along nicely on MongoDB, until it was time to deploy the application. That's when you called your operations person and things got uncomfortable. NoSQL, document database, collections, replica...
ClusterControl 1.2.4 Released
The Severalnines team is pleased to announce the release of ClusterControl 1.2.4. This release contains key new features along with performance improvements and bug fixes. We have outlined some of the key features below. For...
Installing a ClusterControl Standby Server
As you might already know, ClusterControl runs on a dedicated host. Failure of the ClusterControl host (or the datacenter it is running in) does not affect your running database cluster, however you cannot manage the cluster during...
ClusterControl on the AWS Marketplace: Getting Started
Good news for AWS users! We are now available on AWS Marketplace. This allows you, with a single click of a button, to deploy ClusterControl in just a few minutes. Once ClusterControl is deployed, you...
ClusterControl 1.2.3 Released
The Severalnines team is pleased to announce the release of ClusterControl 1.2.3. This release contains new key features along with performance improvements and bug fixes. We have outlined some of the key features below. For...
Replicate from a MySQL Server into a Galera Cluster
This article describes how to setup replication between a regular MySQL server and a Galera Cluster. The regular MySQL Server is the MASTER , and one of the Galera nodes will be the SLAVE: In...
How to Cluster Magento, nginx and MySQL on Multiple Servers for High Availability
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,...
Several Ways to Install ClusterControl
With ClusterControl gaining in popularity, we are seeing users coming in from different angles. Some users are deploying their database cluster using our Online Configurators, others are looking to install ClusterControl to manage an existing...
Using HAProxy with Your Database Cluster
Severalnines s9s_haproxy script allows you to install HAProxy and loadbalance over the MySQL servers in your cluster. To learn more about HAProxy and SQL load balancing, see this HAProxy Tutorial. By defauly s9s_haproxy installs HAProxy...
Nagios Plugin for ClusterControl
Nagios is a very popular open source IT infrastructure monitoring tool, used by sysadmins to watch out for problems in their systems. If you use Nagios and would like to utilize it to monitor your...