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This blog covers INI vs Staging configurations for Secure Shell.
In this blog post we will discuss how to best integrate various Continuent-bundled cluster monitoring solutions with PagerDuty (pagerduty.com), a popular alerting service.
When deploying Tungsten Clustering for MySQL / MariaDB / Percona Server, we always recommend an odd number of Manager nodes in each cluster. Let's take a look at how having an odd number of Managers helps keep a Tungsten Cluster functioning and avoids data corruption scenarios (i.e. "split brain").
When Tungsten Replicator extracts data, the information that has been extracted is written down into the Tungsten History Log, or THL.
You already know about the Tungsten Connector which is the "secret sauce" that routes your application database traffic to the appropriate MySQL data source of your cluster. Have you ever wondered how the Connector keeps track of the cluster configuration? How it always knows which host is the master (or masters in a Composite Multimaster topology), and which are slaves?
One important way to protect your MySQL / MariaDB / Percona Server data is to keep your Tungsten Clustering software up-to-date; but how can you achieve this with zero-downtime?
Learn about the two different methods for installing, updating and upgrading Tungsten Clustering software for MySQL / MariaDB / Percona Server.
Your MySQL database cluster contains your most business-critical data; in this post, we discuss how to ensure proper performance under load.
This post covers some standard Nagios checks that would keep your MySQL / MariaDB / Percona Server cluster nodes healthy.
A robust monitoring setup is essential for cluster health and viability - if your replicator goes offline and you do not know about it, then that Replica becomes effectively useless because it has stale data. This means keeping a close watch on the health of the MySQL / MariaDB / Percona Server database nodes from many perspectives, from ensuring sufficient disk space to testing that replication traffic is flowing.
The Tungsten Replicator is an extraordinarily powerful and flexible tool capable of moving vast volumes of data from source to target.
In this blog post we will discuss one specific aspect of the THL (Transaction History Log) - the METADATA unsafe_for_block_commit flag.