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Restore

FromDual Backup and Recovery Manager for MySQL 1.2.3 has been released

FromDual has the pleasure to announce the release of the new version 1.2.3 of the popular Backup and Recovery Manager for MySQL and MariaDB (fromdual_brman).

You can download the FromDual Backup and Recovery Manager from here.

Download FromDual Backup and Recovery Manager

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).

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FromDual Backup and Recovery Manager for MySQL 1.2.2 has been released

FromDual has the pleasure to announce the release of the new version 1.2.2 of the popular Backup and Recovery Manager for MySQL and MariaDB (fromdual_bman).

You can download the FromDual Backup and Recovery Manager from here.

How is a correct MariaDB/MySQL backup done?

You find many different possibilities how to do a MariaDB/MySQL backup with mariadb-dump/mysqldump. But which one is the correct one?

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

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.

In this blog article we cover all the steps needed to achieve this goal for MySQL and MariaDB.

FromDual Backup and Recovery Manager for MySQL 1.2.1 has been released

FromDual has the pleasure to announce the release of the new version 1.2.1 of the popular Backup and Recovery Manager for MySQL and MariaDB (fromdual_bman).

You can download the FromDual Backup and Recovery Manager from here.

Impacts of max_allowed_packet size problems on your MySQL database

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.

Read more about: max_allowed_packet.

Get rid of wrongly deleted InnoDB tables

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

Situation

A MySQL user has delete its InnoDB table files for example like this:

shell> rm -f $datadir/test/test.*

Analysis

We do some analysis first:

FromDual Ops Center for MariaDB and MySQL (focmm)

The FromDual Ops Center for MariaDB and MySQL (focmm) is a browser-based Graphical User Interface (GUI) to operate and manage your MariaDB and MySQL database farms (2 - 99 instances) more easily.
If further provides tools to implement your own Database as a Service (DBaaS) infrastructure.


FromDual Ops Center covers the full life-cycle of a database:

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Privileges of MySQL backup user for mysqldump

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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:

Recover lost .frm files for InnoDB tables

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

MySQL Restore and Recovery methods

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

First of all: Your life is much easier when you have a proper backup process implemented and verified the restore procedure of your MySQL database.

But what if you have no backup in place and did a DROP TABLE. What shall we do?

We assume our data we just dropped are located on the following device:

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FromDual Software Download

Download from our Software Selector

FromDual provides software for operating MySQL, Galera Cluster, MariaDB and Percona Server.

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Can you trust your MySQL backup?

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!

The reason is the following: When a I/O controller starts to die it often does not happen immediately. The controller dies slowly producing more and more corrupt data. When you just write data without checking or reading them it can take days or even weeks until you discover the problem.

MySQL Cluster restore

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.

The answer from our gurus was: All nodes up during restore! I wanted to find out why. So I set up the following cluster and started to measure:

MySQL Cluster set up

Cluster set-up

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