Archives: Monitoring

One important way to protect your data is to keep your Continuent Clustering software up-to-date. A standard cluster deployment uses three nodes, which allows for no-downtime upgrades along with the ability to have a fully available cluster during maintenance. Please note that with only two database cluster nodes, there is a window of vulnerability created […]

Continuent Clustering is an extraordinarily flexible tool, with options at every layer of operation. In this blog post, we will describe and discuss the two different methods for installing, updating and upgrading Continuent Clustering software. When first designing a deployment, the question of installation methodology is answered by inspecting the environment and reviewing the customer’s […]

In a previous post we went into detail about how to implement Tungsten-specific checks. In this post we will focus on the other standard Nagios checks that would help keep your cluster nodes healthy. Your database cluster contains your most business-critical data. The slave nodes must be online, healthy and in sync with the master […]

Your database cluster contains your most business-critical data. The slave nodes must be online, healthy and in sync with the master in order to be viable failover candidates. This means keeping a close watch on the health of the databases nodes from many perspectives, from ensuring sufficient disk space to testing that replication traffic is […]