Chapter 3. Deployment: MySQL Topologies

Creating a Continuent Tungsten Dataservice using Continuent Tungsten combines a number of different components, systems, and functionality, to support a running database dataservice that is capable of handling database failures, complex replication topologies, and management of the client/database connection for both load balancing and failover scenarios.

How you choose to deploy depends on your requirements and environment. All deployments operate through the tpm command. tpm operates in two different modes:

  • tpm staging configuration — a tpm configuration is created by defining the command-line arguments that define the deployment type, structure and any additional parameters. tpm then installs all the software on all the required hosts by using ssh to distribute Continuent Tungsten and the configuration, and optionally automatically starts the services on each host. tpm manages the entire deployment, configuration and upgrade procedure.

  • tpm INI configuration — tpm uses an INI to configure the service on the local host. The INI file must be create on each host that will be part of the cluster. tpm only manages the services on the local host; in a multi-host deployment, upgrades, updates, and configuration must be handled separately on each host.

The following sections provide guidance and instructions for creating a number of different deployment scenarios using Continuent Tungsten.