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. Continua a leggere 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. Continua a leggere 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. Continua a leggere CentOS Linux alternatives
In this article we discuss how to use Ansible templates to generate proper my.cnf files for each MariaDB host. Continua a leggere Creating dynamic configuration files with Ansible
Why Ansible should run in a dedicated host, not on devops personal laptops. Continua a leggere Running Ansible inside 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. Continua a leggere 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. Continua a leggere 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. Continua a leggere 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. Continua a leggere MySQL/MariaDB: use SQL properly to run less queries
MySQL 8.0 and 5.7 follow a new release policy that exposes users to important risks. They broke compatibility with Xtrabackup (again). Continua a leggere The risks of MySQL release policy