Blog

Standards allow modern systems to advance, and the REST specification is one very important example. Since this post is about the Tungsten API in specific, let me simply say this - a RESTful API adheres to six principles: Client-server, stateless, cacheable, uniform interface, layered system and optionally code on demand. As part of the watchability/monitoring goal, our software as of version 7.0.0 includes a proper RESTful API - what we call APIv2. This API is fully documented and public.

Prometheus and Grafana are open source tools that can be used for monitoring MySQL clusters. Prometheus can be used to collect metrics from MySQL clusters, and Grafana can be used to visualize the metrics. Starting with Tungsten v7, using the new Tungsten Prometheus Exporter feature, it’s become easy to leverage the best these powerful monitoring tools have to offer.

This post covers some standard Nagios checks that would help keep your Tungsten cluster nodes running MySQL / MariaDB / Percona Server healthy.

In this post we will explore new features in both tpm report and tpm ask in v7.1.0. Both commands will continue to evolve and grow over time. In this release we have added new information to the `tpm report` output when requested and new actions, arguments and keys for `tpm ask`.

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.

We are pleased to announce that Tungsten Dashboard v1.0.14 is now available. Tungsten Dashboard is a web-based UI for monitoring and managing Tungsten Clustering deployments of MySQL databases, freely included for Tungsten Clustering customers. We provide Tungsten Dashboard in addition to our command-line user interfaces for easy visual monitoring and management of Tungsten Clusters. Users are able to view, monitor and maintain all of their database clusters in one place.

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.

We are pleased to announce that Tungsten Dashboard v1.0.13 is now available. Tungsten Dashboard is a web-based UI for monitoring and managing Tungsten Clustering deployments of MySQL databases, freely included for Tungsten Clustering customers. We provide Tungsten Dashboard in addition to our command-line user interfaces for easy visual monitoring and management of Tungsten Clusters. Users are able to view, monitor and maintain all of their database clusters in one place.

We are pleased to announce that Tungsten Dashboard v1.0.12 is now available. Tungsten Dashboard is a web-based UI for monitoring and managing Tungsten Clustering deployments of MySQL databases, freely included for Tungsten Clustering customers. We provide Tungsten Dashboard in addition to our command-line user interfaces for easy visual monitoring and management of Tungsten Clusters. Users are able to view, monitor and maintain all of their database clusters in one place.