CMON High Availability and Failover
High availability is a must these days and ClusterControl performs a key role in ensuring that your database clusters will stay up and running. On the other hand, how can we ensure that ClusterControl itself...
Dealing With MySQL Replication Issues Using ClusterControl
One of the most popular ways in achieving high availability for MySQL is replication. Replication has been around for many years, and became much more stable with the introduction of GTIDs. But even with these...
Keeping Databases Up and Running in an Outage or Slowdown
Once you see that your database environment has issues, you are in trouble. Maybe one of your replicas is out or maybe you are experiencing a significant increase in the load across your databases that...
PostgreSQL v13 Deployment and Scaling with ClusterControl 1.8.2
PostgreSQL is one of the databases that can be deployed via ClusterControl, along with MySQL, MariaDB and MongoDB. ClusterControl not only simplifies the deployment of the database cluster, but has a function for scalability in...
Understanding Indexes in MySQL: Part Three
This blog post is the third part of the series of blogs about indexes in MySQL. In the second part of the blog post series about MySQL indexes, we covered indexes and storage engines and touched upon some...
Understanding Indexes in MySQL: Part Two
This blog post is the second part of the series of blogs about indexes in MySQL. In the first part of the blog post series about MySQL indexes, we have covered quite many things, including what...
Understanding Indexes in MySQL: Part One
Indexes in MySQL are a very complex beast. We have covered MySQL indexes in the past, but we have never taken a deeper dive into them - we will do that in these series of...
New User and LDAP Management in ClusterControl 1.8.2
After upgrading to ClusterControl 1.8.2, you should get the following notification banner: What's up with that? It is a depreciation notice of the current user management system in favor of the new user management system...
Database Automation Best Practices in FinTech
Automation equals speed - there is no discussion about it. Automation also increases reliability and reduces the error rate. Those feats are important in pretty much every kind of industry, but they are crucial for...
Automated Testing of the Upgrade Process for MySQL/MariaDB/Percona Server
Upgrades are always a hard and time-consuming task. First, you should test your application in a test environment, so, ideally, you will need to clone your current production environment for this. Then, you need to...
Automated Testing of the Upgrade Process for PXC/MariaDB Galera Cluster
Upgrading your database for Galera-based clusters such as Percona XtraDB Cluster (PXC) or MariaDB Galera Cluster can be challenging, especially for a production-based environment. You cannot afford to lose the state of your high availability...
Using Automation to Speed up Release Tests on PostgreSQL
Having a test environment is a must in all companies. It could be necessary for testing changes or new releases of the application, or even for testing your existing application with a new PostgreSQL version....