Gtid on FromDual GmbH

MariaDB Master/Master GTID based Replication with keepalived VIP

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sat, 11 Nov 2017 11:29:29 +0000

Important: FromDual does NOT recommend to use an automated VIP failover technology as described below for a MariaDB/MySQL Master/Master Replication. In such a topology we recommend a manual VIP failover with prepared scripts!

New Features in MySQL and MariaDB

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 22 Nov 2016 15:45:48 +0000

As you probably know MySQL is an Open Source product licensed under the GPL v2. The GPL grants you the right to not just read and understand the code of the product but also to use, modify AND redistribute the code as long as you follow the GPL rules.

Replication in a star

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 21 Jan 2016 21:24:28 +0000

Most of you know, that it is possible to synchronize MySQL and MariaDB servers using replication. But with the latest releases, it is also possible to use more than just two servers as a multi-master setup.

Controlling worldwide manufacturing plants with MySQL

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 14 May 2015 21:43:03 +0000

A MySQL customer of FromDual has different manufacturing plants spread across the globe. They are operated by local companies. FromDuals customer wants to maintain the manufacturing receipts centralized in a MySQL database in the Head Quarter in Europe. Each manufacturing plant should only see their specific data.

Things you should consider before using GTID

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 14 Nov 2014 16:50:19 +0000

Global Transaction ID (GTID) is one of the major features that were introduced in MySQL 5.6 which provides a lot of benefits. I have talked about the GTID concept, implementation and possible troubleshooting at Percona Live London 2014, you can download the slides from our presentations repository or from my session at Percona Live.

Replication Troubleshooting - Classic VS GTID

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 04 Jul 2014 15:05:58 +0000

In previous posts, I was talking about how to set up MySQL replication, Classic Replication (based on binary logs information) and Transaction-based Replication (based on GTID). In this article I’ll summarize how to troubleshoot MySQL replication for the most common issues we might face with a simple comparison how can we get them solved in the different replication methods (Classic VS GTID).

GTID In Action

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 12 Jun 2014 14:09:05 +0000

In a previous post I was talking about How to Setup MySQL Replication using the classic method (based on binary logs information). In this article I’ll go through the transaction-based replication implementation using GTID in different scenarios.

Xtrabackup in a nutshell

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 06 Nov 2013 14:23:50 +0000

Introduction

No one can deny that one of the most important and daily tasks for DBAs is performing backup and restore operations, we’re not required to perform backup and restore operations only when we want to add new replication slave, when we want to implement disaster recovery procedures or when we want to prepare testing or staging server for the running production system, but even if we’re going to make any changes to the database schema in order to enhance the database performance, it’s recommended to have fresh backup copy before making any live changes, so if backup and restore operations cannot be handled smoothly, we’re going to face many troubles in our daily work. If we’re going to talk about backup and restore operations, Xtrabackup tool will be strongly appeared.

MariaDB and MySQL Upgrade Problems

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 08 Sep 2011 20:09:25 +0200

Reasons to Upgrade MariaDB or MySQL
How to Upgrade MariaDB or MySQL
MariaDB and MySQL Reserved Keywords
MariaDB and MySQL Upgrade Problems we hit in real life
Migration between MySQL, MariaDB and Percona Server
Migration from MyISAM to InnoDB
Migration from MyISAM to Aria
Switching from Statement Based Replication (SBR) to Row Based Replication (RBR)
Switching from non-partitioned to partitioned tables
Switching from MariaDB or MySQL to Galera
Convert from latin1 Character Set to utf8mb4 Character Set

Downgrading MariaDB and Downgrading MySQL (for 5.7 and older).