Galera Load Balancer the underestimated wallflower
There are some pretty sophisticated Load Balancers for Galera Clusters setups out in the market (ProxySQL, MaxScale, HAproxy, ...). They have many different exotic features. You can nearly do...
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MariaDB master/master GTID based replication with keepalived VIP
Some of our customers still want to have old-style MariaDB master/master replication clusters. Time goes by, new technologies appear but some old stuff still remains.The main problem in a master/master...
View ArticleFirst Docker steps with MySQL and MariaDB
The Docker version of the distributions are often quite old. On Ubuntu 16.04 for example: shell> docker --version Docker version 1.13.1, build 092cba3 But the current docker version is 17.09.0-ce...
View ArticleGalera Cluster and Antivirus Scanner on Linux
Today we had to investigate in a very strange behaviour of IST and SST on a MariaDB Galera Cluster.The symptom was, that some Galera Cluster nodes took a very long time to start. Up to 7 minutes. So...
View ArticleOracle releases MySQL security vulnerability fixes 2018-01
As in every quarter of the year Oracle has released yesterday its recommendation for the MySQL security updates. This is called, in Oracle terminology, Critical Patch Update (CPU) Advisory.This CPU is...
View ArticleAdvanced MySQL and MariaDB training in Cologne 2018
End of February, from February 26 to March 2 (5 days), FromDual offers an additional training for DBAs and DevOps: our most visited Advanced MySQL and MariaDB training.This training is hold in the...
View ArticleShort term notice: Percona XtraDB Cluster training in English 7/8 February...
FromDual offers short term a Percona XtraDB Cluster and MySQL Galera Cluster training (2 days) in English.The training will take place in the Linuxhotel in Essen/Germany on February 7/8 2018.There are...
View ArticleMySQL 8.0.4-rc is out
Yesterday MySQL 8.0.4-rc came out. The Release Notes are quite long. But caution: Do a BACKUP before upgrading...I experienced some nice surprises. First I have to admit that I did not read the Release...
View ArticleAdvanced MySQL Enterprise Training by FromDual
Due to the increasing demand FromDual has developed an Advanced MySQL Enterprise Training for DBAs and DevOps. After testing this training extensively with some selected customers last year we offer...
View ArticleMySQL Environment MyEnv 2.0.0 has been released
FromDual has the pleasure to announce the release of the new version 2.0.0 of its popular MySQL, Galera Cluster and MariaDB multi-instance environment MyEnv.The new MyEnv can be downloaded here. How to...
View ArticleMariaDB 10.2 New Features - Slides available
The Chemnitz Linux Days 2018 in Chemnitz (Germany) 10/11 March 2018 are over for more than a week now and IMHO it was a huge success.I was following many very interesting talks, met a lot of...
View ArticleMySQL sys Schema in MariaDB 10.2
MySQL has introduced the PERFORMANCE_SCHEMA (P_S) in MySQL 5.5 and made it really usable in MySQL 5.6 and added some enhancements in MySQL 5.7 and 8.0.Unfortunately the PERFORMANCE_SCHEMA was not...
View ArticleSpecial MySQL and MariaDB trainings 2018 in English
Due to a strong customer demand FromDual offers 2018 two extra MySQL/MariaDB trainings with its Training partner The Linuxhotel in Essen (Germany). Those trainings are in English.MariaDB Performance...
View ArticleSelect Hello World FromDual with MariaDB PL/SQL
MariaDB 10.3 was released GA a few weeks ago. One of the features which interests me most is the MariaDB Oracle PL/SQL compatibility mode.So its time to try it out now...Enabling Oracle PL/SQL in...
View ArticleFromDual Backup and Recovery Manager for MariaDB and MySQL 2.0.0 has been...
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).The new FromDual Backup and Recovery Manager can be...
View ArticleCool new features in FromDual Backup and Recovery Manager 2.0.0
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?First of all brman 2.0.0 is compatible with...
View ArticleSchulung MariaDB/MySQL für Fortgeschrittene vom 12.-16. 11. in Köln
In unserer FromDual Schulung MariaDB/MySQL für Fortgeschrittene vom 12. bis 16. November in Köln hat es zur Zeit noch 3 Plätze frei.Anmelden können Sie sich direkt bei unserem Schulungspartner GfU in...
View ArticleMariaDB/MySQL Environment MyEnv 2.0.1 has been released
FromDual has the pleasure to announce the release of the new version 2.0.1 of its popular MariaDB, Galera Cluster and MySQL multi-instance environment MyEnv.The new MyEnv can be downloaded here. How to...
View ArticleMariaDB/MySQL Schulungstermine 2019
Jetzt sind auch noch die letzten MariaDB und MySQL Schulungstermine für 2019 festgelegt und veröffentlicht.Mit unseren drei Schulungspartnern in Essen, Köln und Berlin bietet FromDual zur Zeit...
View ArticleMariaDB indexing of NULL values
In the recent MariaDB DBA advanced training class the question came up if MariaDB can make use of an index when searching for NULL values... And to be honest I was not sure any more. So instead of...
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