Blog

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.

In this post we discussed the tprovision command and why it is always best to use a Replica node, not the Primary node, as the source for provisioning another Replica node.

For 2023 and the future, Continuent has decided to focus more and more on important Climate related issues, naturally to the extent a software company can. To demonstrate this commitment, for the Holiday Season 2022 we have decided to donate 14 Mangrove trees for all Tungsten customer contacts as well as the internal Continuent team members, plus some friends and family members. Continuent has partnered with a Finnish company Treebuddy.Earth to get this done.

Tungsten Clustering contains many tools to monitor your cluster, and today we will look at a new one - the `tungsten_get_ports` command, included with Tungsten versions 6.1.20+ and 7.0.2+. This tool was created to help provide a clear view of running Tungsten processes and the associated listener ports.

This is a short blog answering the question: "I have a cron job running as a non-tungsten user, and that job needs access to the tungsten-owned files under /opt/continuent, but cannot access the files it needs - how do I give access to those files to my cron job?"

Need to do maintenance on a host? Learn how to suspend it gracefully.

Tungsten Clustering depends on a number of prerequisites and best practices to function optimally. In this blog post, we explore a critical, yet easily-overlooked step when installing a Tungsten Cluster node - configuring the available number of open files when using `systemd` control.

Want your application to read from replicas? Here is how to choose the best r/w splitting option available in Tungsten Clustering.

We are pleased to announce that Tungsten Clustering and Tungsten Replicator GA version 7.0.2 are now available. Tungsten allows enterprises running business-critical MySQL database applications to cost-effectively achieve continuous global operations with commercial-grade high availability (HA), geographically redundant disaster recovery (DR) and geographically distributed active/active.

Tungsten Clustering depends on a number of prerequisites and best practices to function optimally. In this blog post, we explore a critical, yet easily-overlooked step when installing a Tungsten Cluster node - setting up start at boot, ideally under `systemd` control.

We are pleased to announce that Tungsten Dashboard v1.0.11 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.

Continuent is the leading provider of database clustering for MySQL, MariaDB, and Percona MySQL, enabling mission-critical apps to run on these open source databases globally. Having worked with several Fortune 100 customers and been around these database “farms,” I feel comfortable discussing what clustering is, and some of the benefits of clustering your database servers.