Blog

Tungsten Clustering ensures high availability with robust failover capabilities, driven by the Tungsten Manager's health checks and predefined rules. In this blog post, we explore key processes like handling heartbeat gaps, network partitions, and availability checks. We also provide tips for tuning parameters to optimize performance and maintain a resilient database cluster.

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.

Tungsten Clustering allows for many types of maintenance to happen with no downtime at all. This blog post will explore how to upgrade the actual MySQL Server on all cluster nodes with zero downtime. These same steps may be used to upgrade the MySQL server or patch the OS.

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

In this blog post we explore various options for performance tuning MySQL server for better replica replication performance.

In this blog post we will define what a split-brain scenario means in a MySQL database cluster, and then explore how a Tungsten MySQL database cluster reacts to a split-brain situation.

The Question

Recently, a customer asked us:

Why would heavy disk IO cause the Tungsten Manager and not MySQL to be starved of resources?

For example, we saw the following in the Manager log file tmsvc.log:

AWS may reboot your Aurora database. What is the impact?

Beyond uptime lies the calm harbor of long-term administration for your MySQL high-availability solution. But navigating upgrade waves and vendor lock-in can be tricky. Let's chart a smooth course through these challenges and ensure your data sails serenely.

This article will explain how to use rsync to quickly provision a database.

In this blog, we cover Continuents plans on the support model for the new MySQL “Innovation” releases.

If you are upgrading from MySQL 5.x to MySQL 8, using Tungsten Clustering or Tungsten Replicator, then you may need to prepare yourself for a little gotcha.