Ansible can skip certain tasks by default. This can be useful when we automate databases. Let’s see how to do it and why. Continue reading How to skip an Ansible task by default
An oversized InnoDB buffer pool will consume too many resources and can be slower than necessary. Let’s see how to check if we can shrink it. Continue reading Can we shrink InnoDB Buffer Pool?
InnoDB buffer pool is the most important memory area to allocate. It contains the most frequently read data and index entries from InnoDB tables. Let’s see how to check if it is big enough. Continue reading Is InnoDB Buffer Pool big enough?
Red Hat announced that the CentOS project is being discontinued. Organisations that use CentOS should quickly choose an alternative Linux distribution for their servers. Continue reading CentOS Linux alternatives
In this article we discuss how to use Ansible templates to generate proper my.cnf files for each MariaDB host. Continue reading Creating dynamic configuration files with Ansible
Why Ansible should run in a dedicated host, not on devops personal laptops. Continue reading Running Ansible on a dedicated host
It is quite common to use an equality condition and an IS NULL condition on the same columns. Unfortunately, this could make queries very slow. Continue reading MariaDB/MySQL IS NULL conditions and indexes
AUTO_INCREMENT primary keys are useful, because they save usthe trouble to generate a unique value for every row, delegating this task to the database. But when we reach the limit we need to take some action, or we won’t be able to insert more rows. Continue reading Monitoring that AUTO_INCREMENT values won’t reach the limit
Automating deployments with the Architecture As Code paradigm has several benefits. Let’s see some of them. Continue reading 5 benefits of Infrastructure As Code
Reducing the number of queries is important with any DBMS. There are two reasons for this: reducing the latency of applications; and reducing the workload for the database servers. Continue reading MariaDB/MySQL: use SQL properly to run less queries