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Become a MySQL DBA blog series - Database upgrades
Database vendors typically release patches with bug/security fixes on a monthly basis, why should we care? The news is full of reports of security breaches and hacked systems, so unless security is not...
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Deploy Asynchronous Replication Slave to MariaDB Galera Cluster 10.x using...
Combining Galera and asynchronous replication in the same MariaDB setup, aka Hybrid Replication, can be useful - e.g. as a live backup node in a remote datacenter or reporting/analytics server. We...
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How to Deploy and Manage MaxScale using ClusterControl
We were delighted to announce that ClusterControl now supports MaxScale, the intelligent database gateway from the MariaDB team. In this blog, we will show you how to deploy and manage MaxScale from...
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ClusterControl Tips & Tricks: Updating your MySQL Configuration
Requires ClusterControl 1.2.11 or later. Applies to MySQL based clusters.From time to time it is necessary to tune and update your configuration. Here we will show you how you can change/update...
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ClusterControl Tips & Tricks: Securing your MySQL Installation
Requires ClusterControl 1.2.11 or later. Applies to MySQL based clusters.During the life cycle of Database installation it is common that new user accounts are created. It is a good practice to once in...
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Become a MySQL DBA blog series - Galera Cluster diagnostic logs
In a previous post, we discussed the error log as a source of diagnostic information for MySQL. We’ve shown examples of problems where the error log can help you diagnose issues with MySQL. This post...
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ClusterControl Tips & Tricks for MySQL: Max Open Files
Requires ClusterControl 1.2.11 or later. Applies to MySQL single instances, replications and Galera clusters.You have created a large database with thousands of tables (> 5000 in MySQL 5.6). Then...
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Become a MySQL DBA blog series - Troubleshooting Galera cluster issues - part 1
In this blog post, we are going to show you some examples of things that can go wrong in Galera - inexplicable node crashes, network splits, clusters that won’t restart and inconsistent data. We’ll...
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Become a MySQL DBA blog series - Troubleshooting Galera cluster issues - part 2
This is part 2 of our blog on how to troubleshoot Galera cluster - SST errors, and problems with network streaming. In part 1 of the blog, we covered issues ranging from node crashes to clusters that...
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Webinar replay & slides for MySQL DBAs: performing live database upgrades in...
Thanks to everyone who joined us for our recent live webinar on performing live database upgrades for MySQL Replication & Galera, led by Krzysztof Książek. The replay and slides to the webinar are...
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Become a ClusterControl DBA - SSL Key Management and Encryption of MySQL Data...
Databases usually work in a secure environment. It may be a datacenter with a dedicated VLAN for database traffic. It may be a VPC in EC2. If your network spreads across multiple datacenters in...
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Severalnines Launches #MySQLHA CrowdChat
Today we launch our live CrowdChat on everything #MySQLHA!This CrowdChat is brought to you by Severalnines and is hosted by a community of subject matter experts. CrowdChat is a community platform that...
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Infrastructure Automation - Deploying ClusterControl and MySQL-based systems...
We recently made a number of enhancements to the ClusterControl Ansible Role, so it now also supports automatic deployment of MySQL-based systems (MySQL Replication, Galera Cluster, NDB Cluster). The...
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MySQL on Docker: Introduction to Docker Swarm Mode and Multi-Host Networking
In the previous blog post, we looked into Docker’s single-host networking for MySQL containers. This time, we are going to look into the basics of multi-host networking and Docker swarm mode, a...
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Load balanced MySQL Galera setup - Manual Deployment vs ClusterControl
If you have deployed databases with high availability before, you will know that a deployment does not always go your way, even though you’ve done it a zillion times. You could spend a full day setting...
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High Availability on a Shoestring Budget - Deploying a Minimal Two Node MySQL...
We regularly get questions about how to set up a Galera cluster with just 2 nodes. The documentation clearly states you should have at least 3 Galera nodes to avoid network partitioning. But there are...
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Deploying and Monitoring MySQL and MongoDB clusters in the cloud with...
NinesControl is a new service from Severalnines which helps you deploy MySQL Galera and MongoDB clusters in the cloud. In this blog post we will show you how you can easily deploy and monitor your...
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MySQL on Docker: Deploy a Homogeneous Galera Cluster with etcd
In the previous blog post, we have looked into the multi-host networking capabilities with Docker with native network and Calico. In this blog post, our journey to make Galera Cluster run smoothly on...
View ArticleOnline schema change for MySQL & MariaDB - comparing GitHub’s gh-ost vs...
Related resources Schema Changes for MySQL Replication & Galera Cluster Database Cluster Management - Manual vs Automation via ClusterControl Migrating to MySQL 5.7 - The Database Upgrade...
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Become a ClusterControl DBA - SSL Key Management and Encryption of MySQL Data...
Databases usually work in a secure environment. It may be a datacenter with a dedicated VLAN for database traffic. It may be a VPC in EC2. If your network spreads across multiple datacenters in...
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