Blog

Tungsten clustering supports a variety of topologies, each with unique characteristics. Today we introduce yet another compelling topology for your consideration: Tungsten Distributed Datasource Groups, with the new ability to failover automatically between Regions or Datacenters.

In this blog, part 6 of a series of “Recently a Customer Asked” posts for Tungsten University, we explore the reason for the dreaded "NOT A MEMBER" error when running the tpm command and possible root causes, along with steps to fix.

The Tungsten Connector proxy within a Tungsten Cluster is a very powerful tool, able to route traffic many different ways. The Quality Of Service (QoS) determines where the Connector proxy will send client request packets, either to the Primary for writes or to a Replica for reads. This short blog post will show you how to use the command line to control the Quality Of Service when creating a new connection to the MySQL Server database.

In this blog post, we cover the correct method for doing Tungsten software upgrades. When doing systems and database administration, there are often multiple ways to get the job done. While each of those ways may work, there is often one way that is called the “best practice”, meaning that it is the agreed-upon best workflow to accomplish that specific goal. With Tungsten Clustering software, the same holds true.

In this blog, part 5 of a series of “Recently a Customer Asked” posts for Tungsten University, we explore the values of the STATE output field in cctrl> ls which tells us about the health of the datasource. Specifically, we focus on the SHUNNED state, the different cctrl> ls outputs you may see when SHUNNED, and possible recovery steps.

In this blog, part 4 of a series of “Recently a Customer Asked” posts for Tungsten University, we explore the purpose of the STATUS field in the cctrl> ls output and how it compares to the previous output.

The purpose of the cctrl command is to provide easy access to the Tungsten Manager layer, which in turn controls the entire cluster. In this post we will explore the cctrl> service command and the power it provides to the admin.

Improving MySQL Write Performance for Tungsten Cluster Slaves: In this blog post we explore various options for performance tuning MySQL server for better replica replication performance.

How to move the Relay role to another node in a Composite Tungsten Cluster