When deploying Tungsten Clustering for MySQL / MariaDB / Percona Server, we always recommend an odd number of Manager nodes in each cluster. Let's take a look at how having an odd number of Managers helps keep a Tungsten Cluster functioning and avoids data corruption scenarios (i.e. "split brain").
You already know about the Tungsten Connector which is the "secret sauce" that routes your application database traffic to the appropriate MySQL data source of your cluster. Have you ever wondered how the Connector keeps track of the cluster configuration? How it always knows which host is the master (or masters in a Composite Multimaster topology), and which are slaves?
In this blog post, we discuss failover concepts and administration.
In this blog post, we describe the new Read Affinity tuning feature of the Tungsten Connector.
Tungsten Connector read affinity now supports multiple dataservices with ordering and exclusion (only one was previously allowed).
You may now fine-tune the affinity per user in user.map and via the global tpm configuration option connector-affinity.
Achieving software upgrades without downtime is a challenge that few software products can handle, or even try to. Tungsten Clustering is one that can!
In this blog post, we demonstrate how to convert a single standalone MySQL cluster into a Composite Primary/DR topology running in two data centers.
In this blog post, we talk about what happened during an installation of the Tungsten Cluster into an environment with SELinux running and mis-configured.
In this blog post, we talk about how to configure automatic start at boot time for the Tungsten Clustering components.
By default, Tungsten Clustering does not start automatically on boot. To enable Tungsten Clustering to start at boot time, use the deployall script provided to create the necessary boot scripts:
Tungsten Connector is an essential part of Tungsten Clustering for MySQL, MariaDB, and Percona Server. In this blog post, we talk about the Automatic Reconnect feature in the Tungsten Connector. Automatic reconnect enables the Connector to re-establish a connection in the event of a transient failure.
In this blog post, we talk about how existing client connections are handled by the Tungsten Connector when a manual master role switch is invoked and how to adjust that behavior. Tungsten Connector is an intelligent proxy that serves an essential role in Tungsten Clustering for MySQL, MariaDB, and Percona Server.
The Tungsten Connector is an intelligent MySQL proxy that provides key high-availability and read-scaling features. This includes the ability to route MySQL queries by inspecting them in-flight.
Tungsten Connector is an intelligent proxy used in Tungsten Clustering for MySQL / MariaDB / Percona Clustering. In this blog post, we talk about how query connections are handled by the Tungsten Connector, especially read-only connections.
