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?
One important way to protect your MySQL / MariaDB / Percona Server data is to keep your Tungsten Clustering software up-to-date; but how can you achieve this with zero-downtime?
Learn about the two different methods for installing, updating and upgrading Tungsten Clustering software for MySQL / MariaDB / Percona Server.
A robust monitoring setup is essential for cluster health and viability - if your replicator goes offline and you do not know about it, then that Replica becomes effectively useless because it has stale data. This means keeping a close watch on the health of the MySQL / MariaDB / Percona Server database nodes from many perspectives, from ensuring sufficient disk space to testing that replication traffic is flowing.
The Tungsten Replicator is an extraordinarily powerful and flexible tool capable of moving vast volumes of data from source to target.
In this blog post we will discuss one specific aspect of the THL (Transaction History Log) - the METADATA unsafe_for_block_commit flag.
In this blog post, we discuss failover concepts and administration.
The Tungsten Replicator is an extraordinarily powerful and flexible tool capable of moving vast volumes of data from source to target.
The Tungsten Replicator is an extraordinarily powerful and flexible tool capable of moving vast volumes of data from source to target.
In this blog post we will discuss the basics of how to implement and use filters in the Tungsten Replicator.
Managing a single cluster takes time and attention, and handling multiple clusters spread out over many sites is even more demanding. Tungsten Clustering offers a graphical administration tool called the Tungsten Dashboard™ to help with your management burden. You are able to view, monitor and maintain all of your clusters all in one place.
The Tungsten Replicator is an extraordinarily powerful and flexible tool capable of moving vast volumes of data from source to target.
In this blog post we will discuss the internals of the Tungsten Replicator from the perspective of data flow processing.
A pipeline (or service) acts upon data.
Pipelines consist of a variable number of stages.
Achieving software upgrades without downtime is a challenge that few software products can handle, or even try to. Tungsten Clustering is one that can!
