MySQL Blog Posts

The Elements of A Bash Script

Database administrators need to know databases as well as the operating system (OS) their database is running on. Bash scripting is where the two merge. For the beginner, bash scripting can be intimidating, but all have the same basic structure: a beginning, middle,...

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Simple Steps for Rotating the Error Log

The error log is an important tool for troubleshooting. The size of the error log file can get quite large if left unattended. For starters, there are not many parameters that can be adjusted to impact its size in any way, unlike the binlog that has a few system...

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Start Using Binlogs: A Quick Guide

Binary logs play an important role in replication and data recovery. In replication, source databases communicate data changes recorded in its binary logs to the replica's relay logs. They can also be used to repair a replica experiencing data drift. In a similar way,...

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Prepping for MySQL 5.7 Upgrade

MySQL 5.6 reached its end-of-life (EOL) in February 2021. If you haven't upgraded to MySQL 5.7, you are not the only one. It can be an intimidating endeavor. There are configuration, system table, server, Innodb and SQL changes to consider. And, documentation is not...

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Percona XtraBackup Example

For this example, the following software versions were in use: Ubuntu v20.04.3MySQL server v5.7.35Percona XtraBackup v2.4.24 It is important to note that Percona XtraBackup 8.0 is not compatible with MySQL version 5.7 and was introduced for use with MySQL version 8.0....

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Encrypted Replication for MySQL

Encrypted connections for MySQL replication are the default as of 8.0. The following simple example shows a basic setup for encrypted replication using Ubuntu 20.04 and MySQL Community 8.0.27. The steps may be similar for other Linux distributions. The necessary files...

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