Internet is full of simple shell backup scripts. Every DBA and system administrators (including myself) has written one. Bash is a bad tool for this job and in this post I will explain why.

Some time ago, our team released a new version of TwinDB Backup Tool that contains minor fixed and some major improvements. In this article I want to highlight major features in this release. Status refactoring The tool stores backups metadata in a JSON file that I will refer further as the status. The status is […]

Monitoring MySQL backups is a vital part of any reliable backup solution. By monitoring the most common disaster recovery metrics, the Recovery Time Objective and the Recovery Point Objective, you can find out if a backup job was successful and produced a usable backup copy. The TwinDB Backup Tool along with Datadog allows monitoring both […]

If you don’t verify backups you may safely assume you don’t have them. It often happens that MySQL backups can be invalid or broken due to a software bug, or some hidden corruption. If you are lucky enough, hours and days will be needed to resurrect a database from a bad backup copy. If you […]

Setting up a replication slave is pretty straightforward, yet cumbersome process that needs a lot of attention to detail. Even if at first glance the six steps are simple, together they constitute something that is everything but easy to grasp. What’s Our Solution We decided to fix that. As a result, our very own TwinDB […]

The latest Mydumper 0.9.1 version has been around for a while, but we didn’t get to build packages for it. New features and bug fixes were announced in Mydumper 0.9.1 Release Note. Briefly, the new features are: Full schema support for Mydumper/Myloader Locking reduce options GTIDs and Multisource Slave Myloader single database restore Bug fixes Good news […]

If you ever tried to backup MySQL 5.7 with Percona Xtrabackup that comes in percona-xtrabackup package most likely you got error message like this:

This happens because percona-xtrabackup actually installs version 2.3 that doesn’t support MySQL 5.7. To take copies from MySQL 5.7 you need to use Percona XtraBackup version 2.4 and higher. Starting from […]

TwinDB Backup supports encrypted backup copies since version 2.11.0. As usual the tool supports natively backup and restore operations, if backup copies are encrypted the tool takes care of decryption.

Travis-CI is a crucial component of Continuous Integration/Continuous Deployment. We use it a lot to run unit tests and build/upload Python modules. Recently I had to solve a problem of building RPMs on Travis-CI with Docker containers. In this post I will describe step-by-step how to do that. We distribute our backup tool as RPM packages […]

Percona Live is Christmas in the MySQL world. Naturally, it’s the time when friends and family come together. Everyone is talking about achievements of the year and making New Year’s resolutions. TwinDB at Percona This year, TwinDB does two talks. One about data recovery and the other about backups. The first one will be a […]