High Availability on FromDual GmbH

MariaDB Galera Cluster with Corosync/Pacemaker VIP

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 17 Mar 2021 20:26:19 +0000

Sometimes customers want to have a very simple Galera Cluster set-up. They do not want to invest into machines and build up the know-how for load balancers in front of the Galera Cluster.

Advanced MySQL Enterprise Training

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 04 Jan 2018 12:24:16 +0000

If you are already familiar with MySQL and you are challenged to operate a serious MySQL Enterprise infrastructure this training is the right one for you.

Making HAProxy High Available for MySQL Galera Cluster

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sun, 14 Dec 2014 18:37:50 +0000

After properly installing and testing a Galera Cluster we see that the set-up is not finished yet. It needs something in front of the Galera Cluster that balances the load over all nodes.
So we install a load balancer in front of the Galera Cluster. Typically nowadays HAProxy is chosen for this purpose. But then we find, that the whole Galera Cluster is still not high available in case the load balancer fails or dies. So we need a second load balancer for high availability.
But how should we properly failover when the HAProxy load balancer dies? For this purpose we put a Virtual IP (VIP) in front of the HAProxy load balancer pair. The Virtual IP is controlled and failovered with Keepalived.

Unbreakable MySQL Cluster with Galera and Linux Virtual Server (LVS)

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 13 Jun 2013 17:13:47 +0000

Recently we had to set-up a 3-node Galera Cluster with a Load Balancer in front of it. Because Galera Cluster nodes (mysqld) still reply to TCP requests on port 3306 when they are expelled from the Cluster it is not sufficient to just leave it to the Load Balancer to check the port if a Galera node is properly running or not.

MariaDB and MySQL advanced training

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 16 Jan 2013 10:36:20 +0000

You are already familiar with the MySQL or MariaDB and you are challenged to operate a serious MySQL database. If this is the case this training is the right one for you.

Artikel über MySQL im neuen iX

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 20 Sep 2012 15:12:59 +0000

Hallo MySQL Gemeinde,

Im neuen iX (2012-10) hat es zwei nette Artikel über: MySQL HA-Lösungen (S. 116) und MySQL 5.6 (S. 66).

SchoonerSQL

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 02 Aug 2012 14:59:20 +0000

There is a product out in the wild which is called SchoonerSQL
[ 1
] from an American company called Schooner Information Technology
[ 2
]. They claim to have top-performance
[ 3
] and high-availability features with up 99.999% availability
[ 1
].
The technology seems to be based on InnoDB, SSD and some kind of replication with failover mechanism.

Codership partners with FromDual to offer consulting and support services for Galera Cluster for MySQL

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sun, 19 Feb 2012 09:56:45 +0000

Helsinki, Finland, Uster, Switzerland – February 18, 2012 – Codership, the provider of Galera Cluster for MySQL, and FromDual, a MySQL consulting company, today announced collaboration to offer Galera Cluster technology and related support and consulting services for Galera users all over the world, especially in German speaking countries Germany, Austria and Switzerland (DACH). Galera Cluster is a synchronous, true multi-master replication cluster for MySQL using the well known InnoDB storage engine. Customers can deploy Galera Cluster locally in LAN environments, as geo-clusters over the WAN or as virtual cluster in the cloud.

Migrating from MySQL Master-Master Replication to Galera Multi-Master Replication

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 02 Dec 2011 14:48:58 +0000

Introduction

Galera is a synchronous Multi-Master Replication for MySQL. It is therefore in competition with several other MySQL architectures:

Galera - Synchronous Multi-Master Replication Cluster for MySQL/InnoDB

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 23 Sep 2011 11:07:03 +0000

Galera features

Galera provides the following features:

Synchronous replication
Active/active multi-master topology
Read and write to any cluster node
Automatic membership control, failed nodes drop from the cluster
Automatic node joining
True parallel row level replication
Direct client connections
Drop-in replacement for native MySQL

Galera benefits

Benefits using Galera Replication:

MySQL Performance Monitor with DRBD monitoring capabilities

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sat, 26 Mar 2011 11:25:31 +0000

The FromDual Performance Monitor for MySQL has now a new module for monitoring DRBD. Since more an more of our customers want to run MySQL High Availability solutions based on DRBD we have implemented this module.

MySQL High-Availability (HA) solutions

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 15 Mar 2010 22:25:08 +0000

The following solutions are used with MySQL:

Redhat Cluster Suite (RHCS)
SteelEye LiefKeeper
Heartbeat (from the Linux HA project), Using Linux HA Heartbeat
Crossroads
Failover
DRBD, Using MySQL with DRBD
MySQL Cluster

Presentations

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 26 Feb 2010 21:29:43 +0000

The following presentations are available:

Date	Title	Location	Lang
November, 2025	MySQL Honeypot (PDF, 324 kib)	DOAG 2025 Konferenz + Ausstellung, 18 - 20 November 2025, Nürnberg, D	D
November, 2024	MySQL Performance Tuning (PDF, 791 kib), Was ist neu in MySQL 8.4? (PDF, 407 kib)	DOAG 2024 Konferenz + Ausstellung, 19 - 21 November 2024, Nürnberg, D	D
August, 2024	Was ist neu in MariaDB 11.4? (PDF, 271 kib)	FrOSCon 2024, 17 and 18 August 2024, St. Augustin, D	D
November, 2023	Das relationale Open Source Datenbank Ökosystem - IT strategische Gedanken (PDF, 496.4 kib)	DOAG 2023 Konferenz + Ausstellung: 22 November 2023, Nürnberg, D	D
November, 2023	MariaDB und MySQL HA Lösungen - Ein Datenbank-Quartett im Hochverfügbarkeitsvergleich (PDF, 30.2 kib)	DOAG 2023 Konferenz + Ausstellung: 21 November 2023, Nürnberg, D	D
November, 2023	Upgrade MySQL 5.7 Galera Cluster auf MySQL 8.0 (PDF, 132.7 kib)	Galera Webinar, 17 November 2023, Webinar, DACH	D
May, 2023	Galera Cluster for MySQL and Master/Slave Replication (PDF, 300.1 kib)	Datenbank-Tage 2023, 24 and 25 May 2023, virtual in Frankfurt, Germany	D
May, 2023	MariaDB - aber sicher! (PDF, 1.1 Mib)	Secure Linux Administration Converence (SLAC) 2023, 23 to 25 May 2023, Berlin, Germany	D
September, 2022	Galera Cluster for MySQL and Master/Slave Replication (PDF, 223 kib), MySQL Point-in-Time-Recovery (PiTR) (PDF, 154 kib)	DOAG 2022 Konferenz + Ausstellung, 20 to 23 September 2022, Nürnberg, Germany	D
March, 2022	MariaDB Galera Cluster and M/S replication (PDF, 352 kib)	Chemnitzer Linux-Tage, 12 and 13 March 2022, virtual in Chemnitz, Germany	D
February, 2022	MariaDB Connection ID (PDF, 301 kib), MariaDB Galera Cluster and M/S replication (PDF, 239 kib), MariaDB Point-in-Time-Recovery (PDF, 168 kib)	FOSDEM 2022, 5/6 February 2022, virtual in Brussels, Belgium	E
November, 2021	MySQL Security (PDF, 266 kib)	DOAG 2021 Conference and Expo, 16 - 18 November 2021, virtual in Nuremberg, Germany	D
February, 2021	Mariabackup - too rarely used (PDF, 226 kib)	FOSDEM 2021, MariaDB devroom, 6/7 February 2021, Brussels, remote, Belgium	E
December, 2020	MariaDB and MySQL for Web Developers (PDF, 623 kib), Examples	Web Developer Congress 2020, 18 - 20 December 2020, remote, DACH	D
November, 2020	MariaDB / MySQL Stolperfallen - und wie komme ich da wieder raus? (PDF, 695 kib)	DOAG Konferenz und Expo, 19 November 2020, remote in Nürnberg, Germany	D
October, 2020	MariaDB / MySQL Stolperfallen und wie komme ich da wieder raus? (PDF, 768 kib)	GNU/LinuxDay in Vorarlberg, 10 October 2020, Dornbirn (remote), Austria	D
March, 2020	Migration Workshop PXC 5.5 to MariaDB 10.4 (PDF, 445 kib)	Customer Event, March 2020, Paris, France	E
December, 2019	MariaDB 10.4 New Features (PDF, 443 kib)	IT-Tage 2019, 9 - 12 December 2019, Frankfurt, Germany	D
November, 2019	MariaDB 10.4 New Features (PDF, 399 kib)	DOAG K + A 2019, 19 - 21 November 2019, Nürnberg, D	D
November, 2018	MySQL 8.0 New Features (PDF, 393 kib), MariaDB 10.3 - MySQL with PL/SQL (PDF, 518 kib)	DOAG K + A 2018, 20 - 22 November 2018, Nürnberg, D	D
May, 2018	MariaDB 10.2 - New Features (PDF, 1.6 Mib)	SLAC 2018, 7 - 9 May 2018, Berlin, D	D
March, 2018	MariaDB 10.2 - New Features (PDF, 683 kib)	Chemnitzer Linux-Tage 2018, 11 March 2018, Chemnitz, D	D
November, 2017	MySQL Query Tuning (PDF, 2.2 Mib), MySQL Replication and GTID (PDF, 293 kib), Wenn rwx für ugo zu ungenau ist - SELinux und AppArmor (PDF, 291 kib)	DOAG K + A 2017, 21 - 23 November 2017, Nürnberg, D	D
August, 2017	Wenn rwx für ugo zu ungenau ist - SELinux und AppArmor (PDF, 303 kib)	FrOSCon 2017, 19 - 20 August 2017, St.Augustin, D	D
July, 2017	Wenn rwx für ugo zu ungenau ist - SELinux und AppArmor (PDF, 280 kib)	Admin-Runde, 6 July 2017, Berlin, D	D
March, 2017	Katastrophenschutz durch Backup - auch privat (PDF, 1.1 Mib) Wenn rwx für ugo zu ungenau ist - SELinux und AppArmor (PDF, 265 kib)	Chemnitzer Linux-Tage 2017, 11 + 12 March 2017, Chemnitz, D	D
December, 2016	MySQL/MariaDB für nicht-MySQL DBAs (PDF, 491 kib)	IT-Tage 2016, 15 December 2016, Frankfurt, D	D
November, 2016	MySQL Security für Oracle DBAs (PDF, 480 kib), MySQL HA vs HA (PDF, 358 kib), Einführung in das Tuning von MySQL (PDF, 421 kib), MySQL 5.7: JSON und GIS (PDF, 1.9 Mib)	DOAG K + A 2016, 15 -17 November 2016, Nürnberg, D	D
September, 2016	MySQL Database Scalability (PDF, 300 kib)	Nextcloud Conference 2016, 16 - 22 September 2016, Berlin, D	E
August, 2016	ClickHouse Column Store (PDF, 943 kib), Vergleich von Replikation und Galera Cluster (PDF, 633 kib), MySQL-Auswahl auch gegen die Distribution (PDF, 407 kib), Der DB-Backup ist gemacht - was nun? (PDF, 419 kib), MySQL 5.7, JSON und GIS (PDF, 1.3 Mib), MySQL 5.7: Migration und Sicherheit (PDF, 1.6 Mib)	FrOSCON 2016, 20 - 21 August 2016, St. Augustin, D	D
July, 2016	MySQL 5.7 New Features (PDF, 980 kib)	DOAG Webinar, 8 July 2016, Webinar	D
June, 2016	MySQL für Oracle DBAs (PDF, 3.35 Mib), MySQL Beispiele aus der Praxis - Wie setzen Kunden MySQL ein? (PDF, 3.3 Mib)	SOUG DAY 2016, 23 June 2016, Baden-Dättwil, CH	D
June, 2016	Sicherheitsrelevante Änderungen (und einige andere) in MySQL 5.7 (PDF, 289 kib)	SLAC 2016, 15 - 17 June 2016, Berlin, D	D
May, 2016	MySQL für Oracle DBAs (PDF, 991 kib)	DOAG 2016 Datenbank, 10 May 2016, Düsseldorf, D	D
April, 2016	MySQL Servers Working as a Team - Replication or Galera Cluster (PDF, 631 kib)	Open Source Data Center Conference (OSDC), 27 April 2016, Berlin, D	E
March, 2016	RPM-Konventionen - ein moderner Turm von Babel (PDF, 384 kib)	Chemnitzer Linux-Tage 2016, 20 March 2016, Chemnitz, D	D
March, 2016	MySQL 5.7 New Features (PDF, 990 kib)	CeBIT 2016, 14 March 2016, Hannover, D	D
January, 2016	PERFORMANCE_SCHEMA and sys schema - What can we do with it? (PDF, 406 kib)	FOSDEM 2016, 29/30 January 2016, Brussels, B	E
January, 2016	MySQL für Oracle DBA's (PDF, 1.7 Mib), MySQL Backup/Recovery (PDF, 348 kib)	DOAG Regionaltreffen Freiburg/Südbaden, 26 January 2016, Freiburg, D	D
January, 2016	MySQL-Server im Teamwork - Replikation und Cluster (PDF, 631 kib)	Admin-Runde, 7 January 2016, Berlin, D	D
December, 2015	MySQL Beispiele aus der Praxis - Wie setzen Kunden MySQL ein? (PDF, 3.3 Mib)	DOAG Regionaltreffen Nürnberg/Franken, 17 December 2015, Nürnberg, D	D
November, 2015	MySQL Performance Tuningfür Oracle-DBA's (PDF, 680 kib), Der Datenbank-Backup ist gemacht - was nun ? (PDF, 415 kib), MySQL-Server im Teamwork - Replikation und Cluster (PDF, 456 kib), Weltweite Produktionsdatenverwaltung mit MySQL-Replikation (PDF, 625 kib)	DOAG Conference 2015, 17 - 19 November 2015, Nürnberg, D	D
September, 2015	MySQL-Server im Teamwork (PDF, 395 kib) MySQL Replikation und Galera Cluster im Überblick	DOAG Regionaltreffen München, 28 September 2015, Munich, D	D
June, 2015	Der Datenbank-Backup ist gemacht - was nun? (PDF, 743 kib) Recovery testen und dann als Produktiv-Kopie nutzen, MySQL sicher aufsetzen und betreiben (PDF, 863 kib)	SLAC 2015, 24 - 26 June 2015, Berlin, D	D
April, 2015	MySQL für Oracle DBA's (PDF, 890 kib)	DOAG Regionaltreffen Stuttgart, 1 April 2015, Stuttgart, D	D
March, 2015	MySQL Performance Tuning für Entwickler (PDF, 961 kib)	Chemnitzer Linux-Tage 2015, 21/22 March 2015, Chemnitz, D	D
March, 2015	MySQL für Oracle DBA's (PDF, 1006 kib)	SOUG GV 2015 + SIG, 19 March 2015, Baden-Dättwil, CH	D
March, 2015	MySQL Performance Tuning für Entwickler (PDF, 755 kib)	CeBIT 2015, 16 March 2015, Hannover, D	D
January, 2015	MySQL Replikation - Die Eier legende Wollmilchsau? (PDF, 1.2 Mib)	DOAG Webinar, 9 January 2015, Webinar	D
November, 2014	Konsolidieren von MySQL Landschaften (PDF, 438.0 kib), Backup und Point-in-Time-Recovery mit MySQL (PDF, 183.8 kib)	DOAG Conference 2014, 18 - 20 November 2014, Nürnberg, D	D
November, 2014	GTID Replication Implementation and Troubleshooting (PDF, 175.6 Mib)	Percona Live London 2014, November 3-4, 2014, London, UK.	E
September, 2014	High-availability with Galera Cluster for MySQL (PDF, 277 kib), Reading MySQL fingerprints (PDF, 161 kib), What is a Backup Good For? (PDF, 51 kib) & How to implement GTID Replication? (PDF, 99 kib)	FromDual Company Meeting 2014, September 10 - 12, Barcelona, E/Catalonia	E
May, 2014	MySQL always-up with Galera (PDF, 438 kib)	SLAC 2014, May 14 2014, Berlin, D	D
May, 2014	High-availability with Galera Cluster for MySQL (PDF, 313 kib)	LinuxTag 2014, May 10 2014, Berlin, D	D
March, 2014	Need for Speed: MySQL Indexing (PDF, 1.1 Mib)	CeBIT 2014, March 11 2014, Hannover, D	D
November, 2013	MySQL Backup (PDF, 315 kib), MySQL Cluster with Galera (PDF, 297 kib)	DOAG Conference 2013, November 10-12 2013, Nürnberg, D	D
November, 2013	Need for Speed: MySQL Indexing (PDF, 977 kib)	Percona Live London 2013, November 11-12, 2013, London, UK	E
October, 2013	Simple usage of Xtrabackup tool (PDF, 107.8 kib), Galera Cluster for MySQL (PDF, 325 kib)	FromDual annual company Meeting, October 9, 2013, Leoforos Vravronos	E
June, 2013	MySQL for Oracle DBAs (PDF, 331 kib)	MySQL für Oracle DBAs, June 14 2013, Online	D
June, 2013	MySQL HA and Security (PDF, 719 kib)	SLAC 2013, June 5 to 7 2013, Berlin	D
May, 2013	MySQL Security (PDF, 295 kib), MySQL High-Availability (PDF, 244 kib)	DOAG 2013 Datenbank, May 14 2013, Düsseldorf	D
March, 2013	MySQL Performance Tuning (PDF, 633 kib)	Frankfurter Datenbanktage 2013, March 13 to 15 2013, Oberems-Glashütten	D
February, 2012	Synchronous multi-Master Replication for MySQL (PDF, 134 kib), MySQL Replication: New Features in 5.5 and 5.6 (PDF, 490 kib)	DOAG SIG MySQL, February 27 2013, Munich	D
November, 2012	Data Warehouse (DWH) with MySQL (PDF, 1.3 Mib), MySQL New Features 5.6 (PDF, 474 kib), MySQL Replication (PDF, 451 kib)	DOAG Conference 2012, November 20-22 2012, Nürnberg	D
August, 2012	We build a Data Warehouse with MySQL (PDF, 1.3 Mib)	FrOSCon 2012, August 25-26 2012, St. Augustin	D
March, 2012	MySQL Configuration - the most important parameters (PDF, 727 kib), Indexing with MySQL (PDF, 520 kib)	DOAG SIG MySQL - Performance, March 13 2012, Wiesbaden	D
February, 2012	New Features in MySQL 5.6 (PDF, 459 kib), MySQL synchronous replication in practice with Galera (PDF, 176 kib)	FOSDEM 2012 at MySQL and Friends Devroom, February 5 2012, Brussels	E
December, 2011	HandlerSocket und ähnliche Architekturen, NoSQL für MySQL (PDF, 524 kib)	Internet Briefing Developer Conference 2011, December 8 2011, Zürich	D
December, 2011	MySQL Architectures for Oracle DBA's (PDF, 700 kib), Practical MySQL Tuning (PDF, 796 kib)	UK Oracle User Group (UKOUG) Conference 2011, December 5-7 2011, Birmingham	E
November, 2011	MySQL Performance Tuning (PDF, 811 kib), MySQL Replication for Beginners (PDF, 503 kib)	DOAG Conference 2011, November 15 - 17 2011, Nürnberg	D
October, 2011	Various MySQL High Availability (HA) Solutions (PDF, 234 kib)	Percona Live MySQL Conference, October 24 - 25 2011, London	E
August, 2011	MySQL Performance Tuning (PDF, 693 kib), MySQL Replication for Beginners (PDF, 380 kib)	FrOSCon 2011, August 20-21 2011, St. Augustin	D
June, 2011	DB-Programming in a different way: HandlerSocket and similar Technologies - NoSQL for MySQL (PDF, 448 kib)	DOAG SIG Development, June, 9^th 2011, Kassel	D
May, 2011	HA Architectures with MySQL (PDF, 228 kib)	DOAG SIG Database MySQL, May, 19^th 2011, Hanover	D
April, 2011	HandlerSocket und ähnliche Architekturen, NoSQL für MySQL (PDF, 897 kib)	Grazer Linuxtage 2011 April 9^th 2011, Graz	D
March, 2011	MySQL Replication - Scale-Out, Master-Master, Backup (PDF, 381 kib)	DOAG Regionaltreffen München March 23^rd 2011, Munich	D
February, 2011	HandlerSocket and similar architectures - NoSQL for MySQL (PDF, 880 kib)	FOSDEM 2011, Brussels	E
November, 2010	MySQL Architectures for Oracle DBA's (PDF, 479 kib)	DOAG Conference 2010, Nürnberg	D
August, 2010	MySQL Performance Monitoring with Zabbix (PDF, 2.1 Mib)	OpenSQL Camp EU 2010 / FrOSCon, St. Augustin	D
March, 2010	MySQL, where are you going? (PDF, 171 kib)	OpenExpo, Bern	E
March, 2010	Performance Tuning & Scale-Out mit MySQL (PDF, 339 kib)	Internet Briefing, Zürich	D
September, 2007	MySQL High-Availability and Scale-Out architectures (PDF, 547 kib)	/ch/open Workshop-Tage, Zürich	E
September, 2007	MySQL Performance Tuning (PDF, 834 kib)	/ch/open Workshop-Tage, Zürich	E
August, 2007	Locality of (P)reference (PDF, 467 kib)	MySQL PS EMEA Meeting, Budapest	E

If you want us to have a talk at your conference or event please let us know and we will get in contact with you asap!

Test application for MySQL high availability (HA) set-up

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 09 Oct 2008 16:25:00 +0000

When I set-up a MySQL HA environment for customers I usually do some final failover tests after configuring the whole beast.

Active/active failover cluster with MySQL Replication

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 05 Sep 2008 17:00:00 +0000

Electing a slave as new master and aligning the other slaves to the new master

In a simple MySQL Replication set-up you have high-availability (HA) on the read side (r). But for the master which covers all the writes (w) and the time critical read (rt) there is no HA implemented. For some situations this can be OK. For example if you have rarely writes or if you can wait until a new Master is set up.

MySQL HA (high availability) Cluster cookbook

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sun, 27 Mar 2011 18:16:34 +0200

In the following article I have summarized some steps and hints to set-up a MySQL active/passive failover Cluster also sometimes called MySQL HA.