In a recent article, I described how to setup a basic MySQL Cluster with two data nodes and a combined SQL and management node. In this article, I am going to highlight a hew more things and we are going to adapt the cluster a little bit.
For making our lives easier, we can use hostnames which are easier to remember than IP addresses. Hostnames can be specified for each VM in the file /etc/hosts. For each request to the hostname, the operating system will lookup the corresponding IP address. We need to change this file on all three nodes to the following example: