![]() ![]() If you prefer to have only one management VM, just leave it out of the configuration and you are clear to go.īefore you continue, go to and verify which version is the current one. We will start off with MySQL-MGM1 and once it is completed, the procedure should be carried out on the second management host. Before you continue, you should have all VM's working and have at least local network connectivity working.įirst off we need to install the management nodes of the MySQL cluster. This will vary from your network configuration and should be treated as a simple example network. Virtual Machine Operating System Ubuntu 12.04.3 LTS (Precise Pangolin) 64-bitĪll virtual machines are in the same 192.168.67.0/24 network, but the load-balancer could as well have a connection to the outside network. ![]() Virtual Machine Cluster Platform VMware ESXi 4.1 It is possible to add additional nodes to the cluster later on and the single MySQL-proxy is possible to make Highly Avaiable (HA), but not covered in this post. In this tutorial I will walk you trough installing a total of 5 VM's, where two of which as Management Nodes, two are DB nodes and one is a MySQL proxy. In my example I will include a second management node to the cluster to give you an example on how it will work. The Management node can also be inaccessible but will most likely case a “Split-Brain" issue with inconsistent data between the two working DB-nodes. In case one of the DB-nodes goes offline, the cluster can still work and will synchronize once the node is back up. One Virtual Machine to act as the cluster management and two database nodes. ![]() To create a fully functional cluster you need a minimum of 3 VM's to complete. Personally I would recommend creating a PostgreSQL cluster. Before venturing on with creating a MySQL cluster, do check the following page here. Please do note that MySQL clusters have set limitations compared to one server MySQL configuration. MySQL Cluster is implemented through the NDB or NDBCLUSTER storage engine for MySQL ("NDB" stands for Network Database).ĭeveloper's Official Website This post is is a guide on how to create a MySQL cluster on Ubuntu 12.04 LTS server distribution. It is designed to provide high availability and high throughput with low latency, while allowing for near linear scalability. MySQL Cluster is a technology providing shared-nothing clustering and auto-sharding for the MySQL database management system. ![]()
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