Backup on FromDual GmbH

Automated MariaDB restore tests

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 27 Aug 2021 19:38:16 +0000

Nearly everybody does backups. But nobody needs backups! What everybody wants and needs is a working restore not a working backup…

How to force InnoDB Buffer Pool flushing

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 10 Dec 2020 17:38:36 +0000

InnoDB tries to keep pages in Buffer Pool to be fast. If a page is changed by a DML statement (INSERT, UPDATE, DELETE) this change will be done in InnoDB Buffer Pool and not directly on disk. But those changed InnoDB pages residing in InnoDB Buffer Pool must be flushed sooner or later to disk to become persistent. This is done by the InnoDB background writer thread(s) (default 4).

Partial Restore of a Table into a MariaDB Galera Cluster

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 20 Nov 2020 15:08:29 +0000

In my former Blog Post Partial Table or Schema restore from mariabackup full backup we worked out the basics of a partial restore of a table into a MariaDB database instance.

Dropped Tables with FromDual Backup Manager

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 24 May 2019 07:23:55 +0000

Some applications have the bad behaviour to CREATE or DROP tables while our FromDual Backup Manager (bman) backup is running.

MySQL Enterprise Backup Support Matrix

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 19 Feb 2019 19:13:23 +0000

MySQL Enterprise Backup (MEB) is a bit limited related to support of older MySQL versions. So you should consider the following release matrix:

To NULL, or not to NULL, that is the question!

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 14 Dec 2018 08:33:25 +0000

As we already stated in earlier articles in this blog
[1 and 2
] it is a good idea to use NULL values properly in MariaDB and MySQL.

Cool new features in FromDual Backup and Recovery Manager 2.0.0

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 13 Aug 2018 14:49:19 +0000

A while ago we released our FromDual Backup and Recovery Manager (brman) 2.0.0 for MariaDB and MySQL. So what are the new cool features of this new release?

MySQL Enterprise Backup Incremental Cumulative and Differential Backup

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 11 May 2017 17:20:32 +0000

Preparing the MySQL Enterprise Administrator Training I found that the MySQL Enterprise Backup Incremental Backup is not described very well. Thus I tried it out and wrote down this how-to:

Download FromDual Backup and Recovery Manager

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 07 Aug 2015 15:40:28 +0000

FromDual Backup and Recovery Manager (brman) for MariaDB and MySQL

The FromDual Backup and Recovery Manager (brman) for MariaDB and MySQL is an easy to use software to do Backup, Restore and Point-in-Time-Recovery for MySQL, Galera Cluster, MariaDB and Percona Server. It integrates the utilities mysqldump, mysql, mariabackup, xtrabackup and mysqlbackup (MySQL Enterprise Backup).

MySQL Enterprise Incremental Backup simplified

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 25 Feb 2015 19:41:17 +0000

MySQL Enterprise Backup (MEB) has the capability to make real incremental (differential and cumulative?) backups. The actual releases are quite cool and you should really look at it…

Download MySQL Enterprise Features

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 02 Feb 2015 21:47:14 +0000

MySQL provides some great enterprise features beside the MySQL Server. The ones we are asked the most at customers are:

MySQL table Point-in-Time-Recovery from mysqldump backup

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sun, 25 Jan 2015 19:42:21 +0000

Sometimes we face the situation where we have a full MySQL database backup done with mysqldump and then we have to restore and recover just one single table out of our huge mysqldump file.
Further our mysqldump backup was taken hours ago so we want to recover all the changes on that table since our backup was taken up to the end.

Impacts of max_allowed_packet size problems on your MySQL database

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sun, 18 Jan 2015 11:18:46 +0000

We recently run into some troubles with max_allowed_packet size problems during backups with the FromDual Backup/Recovery Manager and thus I investigated a bit more in the symptoms of such problems.

Get rid of wrongly deleted InnoDB tables

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 22 Oct 2014 22:10:58 +0000

Precaution: Before you try this out on your production system do a BACKUP first! FromDual Backup Manager can help you with this.

FromDual: Tools for MySQL and Galera - Backup - Monitoring - Operations

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sun, 27 Jul 2014 10:46:18 +0000

FromDual tools provide valuable additional functionality which facilitate and optimize daily operations of your MySQL databases. Since our last newsletter a lot of things have changed in the FromDual tools.

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.

Privileges of MySQL backup user for mysqldump

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 11 Dec 2012 21:34:24 +0000

Some MySQL customers do not want to use the root user for mysqldump backups. For this user you have to grant the following minimal MySQL privileges:

MySQL backup to file, gzip and load in one step

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 30 Nov 2012 00:26:18 +0000

When a MySQL Slave is set-up with mysqldump you have 2 possibilities:

Recover lost .frm files for InnoDB tables

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 20 Dec 2011 22:51:03 +0000

Recently I found in a forum the following request for help:

To zip, or not to zip, that is the question

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 08 Aug 2011 11:12:20 +0000

Abstract: In this article we have a look at the compression options of common zipping tools and its impact on the size of the compressed files and the compression time. Further we look at the new parallel zip tools which make use of several cores.

MySQL Restore and Recovery methods

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 26 Jan 2011 21:19:14 +0000

Backup is for sissies! Let’s have a look what we can do when we are not a sissy…

MySQL Questions & Answers

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 15 Mar 2010 11:15:25 +0000

Search with special characters

This Question has been moved to the Forum.

Can you trust your MySQL backup?

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 11 Feb 2010 22:06:00 +0000

Today a customer with corrupted data files showed up. When we enquired a bit more he told us that he had a broken I/O controller. This is one of the worst things which can happen to you!

MySQL Cluster restore

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 22 Mar 2007 19:05:00 +0000

Recently the question came up if it is faster to restore a MySQL cluster when all nodes are up or only ONE node from each node group during restore.

FromDual Backup and Recovery Manager

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sat, 07 Feb 2026 20:17:00 +0100

Coming soon…

Have also a look at the Backup and Recovery Manager Documentation.

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.3.2 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 22 Oct 2025 20:41:15 +0200

FromDual has the pleasure to announce the release of the new version 2.3.2 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.3.1 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 12 Aug 2024 16:25:13 +0200

FromDual has the pleasure to announce the release of the new version 2.3.1 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.3.0 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 25 Jun 2024 15:12:02 +0200

FromDual has the pleasure to announce the release of the new version 2.3.0 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.2.5 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 25 Feb 2022 14:53:20 +0100

FromDual has the pleasure to announce the release of the new version 2.2.5 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.2.4 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 23 Aug 2021 17:14:05 +0200

FromDual has the pleasure to announce the release of the new version 2.2.4 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.2.3 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 18 Jan 2021 14:35:43 +0100

FromDual has the pleasure to announce the release of the new version 2.2.3 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

Partial Table or Schema restore from mariabackup full backup

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 11 Nov 2020 21:59:19 +0100

For me it was for a long time not clear if a mariadb-backup full backup can be used to do partial table or schema restores. Now we faced this challenge with a customer. So time to try it out…

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.2.2 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 14 Oct 2020 14:22:07 +0200

FromDual has the pleasure to announce the release of the new version 2.2.2 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

FromDual Ops Center for MariaDB and MySQL 0.9.2 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 13 Aug 2019 16:50:25 +0200

FromDual has the pleasure to announce the release of the new version 0.9.2 of its popular FromDual Ops Center for MariaDB and MySQL focmm.

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.2.1 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 06 Aug 2019 09:12:01 +0200

FromDual has the pleasure to announce the release of the new version 2.2.1 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.2.0 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 29 Jul 2019 16:51:10 +0200

FromDual has the pleasure to announce the release of the new version 2.2.0 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

Oops! - That SQL Query was not intended... Flashback

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 24 Jun 2019 14:12:00 +0200

It is Saturday night at 23:19. Time to go to bed after a hard migration day. Just a last clean-up query before finishing: Tap tap tap. Enter! - Oops!

FromDual Ops Center for MariaDB and MySQL 0.9.1 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 07 May 2019 17:12:19 +0200

FromDual has the pleasure to announce the release of the new version 0.9.1 of its popular FromDual Ops Center for MariaDB and MySQL focmm.

FromDual Ops Center for MariaDB and MySQL 0.9 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 30 Apr 2019 09:17:40 +0200

Caution: We have introduced an evil bug which prohibits installation of focmm. Sorry! Somehow it did pass our QA. To fix this bug update file lib/Upgrade.inc on Line 1965 as follows:

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.1.0 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 22 Feb 2019 17:14:23 +0100

FromDual has the pleasure to announce the release of the new version 2.1.0 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

FromDual Backup and Recovery Manager for MariaDB and MySQL 2.0.0 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 27 Jun 2018 18:25:51 +0200

FromDual has the pleasure to announce the release of the new version 2.0.0 of its popular Backup and Recovery Manager for MariaDB and MySQL (brman).

FromDual Backup and Recovery Manager for MySQL 1.2.5 has been released

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 10 May 2017 15:26:15 +0200

FromDual has the pleasure to announce the release of the new version 1.2.5 of the popular Backup and Recovery Manager for MySQL and MariaDB (fromdual_brman).