Blog

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:

It is always a good idea to be mindful of open ports on your hosts, since they can be used by bad actors to gain access to your systems. For this reason, it is often desirable to prevent outside connections to the port whenever possible to prevent intrusions. For security purposes (and possibly PCI compliance), the Tungsten Connector proxy has the ability to bind to localhost/127.0.0.1 instead of listening on all available IP addresses via 0.0.0.0.

This blog post outlines our Continuent Tungsten pricing model for Tungsten Cluster software subscriptions and related 24/7 support.

When Tungsten Replicator extracts data, the information that has been extracted is written down into the Tungsten History Log, or THL.

In this blog, part of a series of “Recently a Customer Asked” posts for Tungsten University, we explore the reason for the occasional Tungsten Replicator OFFLINE:ERROR state when applying to AWS Redshift, along with possible steps to compensate for the issue.

Discover the latest enhancements, new features, and critical bug fixes in Tungsten Cluster and Tungsten Replicator version 7.1.2. Explore behavior changes affecting installation and deployment, learn about the introduction of the tungsten_mysql_ssl_setup command-line tool and critical bug fixes addressing issues such as data source monitoring and cluster switch failures.

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.

Discover the future of database management with Tungsten Clustering & Tungsten Replicator v7.1.0. Explore Distributed Datasource Groups, the innovative tpm cert tool, S3 Applier, enhanced connector management, and more. Upgrade today for a seamless, secure, and efficient database experience.

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`.

Customers often use AWS to deploy MySQL or MariaDB Tungsten Clusters. This blog is about changing an AWS instance type from t2.large to t3.large specifically on Amazon Linux 1. It contains the steps to follow when changing AWS instance families to use enhanced networking.

One nice thing about Tungsten Clustering is that you need just a single command to move the primary role to another host in your cluster.