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Displaying posts with tag: Galera cluster (reset)
Announcing Galera Cluster 5.7.18, 5.6.36 and 5.5.55 with Galera 3.21. Improvements to IPv6 Support, Bug Fixes and Changes to Repositories Structure

Codership is pleased to announce a new release of Galera Cluster for MySQL
consisting of MySQL-wsrep 5.7.18, 5.6.36, 5.5.55 and Galera 3.21, wsrep API
version 25.

Changes to Repositories Structure

With the new release the repository structure is changed to allow for
existence of all of the wsrep-patched mysql versions currently supported:
5.5 through 5.7.

Thus the repository layout requires from the user to adjust his or her
repository configuration to accomodate those changes. In order to have the
MySQL-wsrep and Galera library installed, one would need to add the following

1. Galera-3 repository for galera library:

Here DIST is Linux distribution (ubuntu, centos, …).

The latest version of Galera for FreeBSD is available in FreeBSD Ports

[Read more]
Upcoming HA Webinar Wed 6/21: Percona XtraDB Cluster, Galera Cluster, MySQL Group Replication

Join Percona’s MySQL Practice Manager Kenny Gryp and QA Engineer, Ramesh Sivaraman as they present a high availability webinar around Percona XtraDB Cluster, Galera Cluster, MySQL Group Replication on Wednesday, June 21, 2017 at 10:00 am PDT / 1:00 pm EDT (UTC-7).

Register Now

What are the implementation differences between Percona XtraDB Cluster 5.7, Galera Cluster 5.7 and MySQL Group Replication?

  • How do they work?
[Read more]
China Mobile & Intel Deploy Galera for 1000-Node OpenStack Cloud

The white paper shares lessons learned from a careful, component level analysis of China Mobile’s 1000-node OpenStack cloud. They uncovered three major issues in the course of this study, all addressed through OpenStack configuration changes. The result: a more stable and performant China Mobile OpenStack cloud and insights into scale bottlenecks and areas for future work.

Read the full story: Analyzing and Tuning China Mobile’s OpenStack Production Cloud white paper below


Joint Webinar May 17th: High-Availability & Scalability with Galera Cluster for MySQL

We will demonstrate the ease of monitoring Galera Cluster using Monyog MySQL monitor. By the end of the webinar, you will have a better understanding of how to use Monyog for monitoring Galera Cluster for MySQL to achieve a required balance of high availability and scalability.

Galera Cluster for MySQL is a multi-master active-active cluster. It is an easy-to-use, high-availability solution, which provides high system uptime, no data loss, and scalability for future growth. In this webinar, we will give an overview how does Galera Cluster work and what are the benefits of using Galera Cluster.

Join USA timezone webinar Wed, May 17, 10:00 AM – 11:00 AM PDT

Join EMEA timezone webinar Wed, May 17, 11:00 AM – 12:00 AM CET

[Read more]
Reset root password on Galera Cluster (Percona or MariaDB)

Reset MySQL root password for Galera Cluster ( Percona Xtradb / MariaDB )

How to setup MaxScale with MariaDB Galera Cluster

This post is just following up my previous blog post which describes how to setup 3-nodes MariaDB Galera Cluster with MySQL-Sandbox on single server.


Today, I’ll try to explain how we can setup MariaDB MaxScale over the Galera Cluster. Before I move ahead, I would like to explain about MaxScale little bit.

MariaDB MaxScale is a database proxy that enables horizontal database scaling while maintaining a fast response to client applications. You can implement MaxScale on either MySQL Replication or Galera cluster. With MySQL Replication, you can either use Read/Write Splitting or Connection routing and same with Galera Cluster. You can get more information here about this product.

[Read more]
How to setup three nodes MariaDB Galera Cluster on Single server with MySQL sandbox

For the production environment, it’s recommended that we should use separate server for each Galera Cluster node but sometimes, for the testing purpose we have to setup it on one server with different ports. Here are the steps for how to do that with CentOS 6.8, MariaDB Galera Cluster 10.1.21 and MySQL Sandbox

  • Download MariaDB 10.1.21 from this location

  • If you want to use sst method = xtrabackup then install it with yum repo    

[Read more]
Codership is hiring! We are looking for Quality Assurance Engineer

Codership QA Engineer


The QA Engineer/release manager will be responsible for working with the development team at Codership and create and execute tests, make builds of Galera Cluster and develop and extend test automation frameworks.

You will be also working closely with MariaDB development and quality assurance teams to prioritize software bug fixes.



  • Continuously refine the QA process to improve product qualitY
  • Troubleshoot and work with the development team to isolate issues
  • Create and maintain automated tests
  • Make Galera software builds (our build pipeline uses python, Jenkins, Docker and Qemu)
  • Assist customers with their questions and support tickets


Desired Skills and Experience

  • 3 years of experience in QA on Linux
  • Proven record of implementing test …
[Read more]
Meet Galera Cluster developers and experts at MariaDB MI17 Conference in New York April 11-12

Find Galera Cluster developers and experts in our booth.  We would be happy to hear your Galera Cluster story.


Galera presentations in MI17:


Deep Dive: Adding Replication and Scaling with Galera

Wednesday, April 12 1:10 pm – 2:00 pm.

Seppo  Jaakola, Codership CEO

Data inconsistency is the worst problem that can happen for a synchronous database cluster. At some point it will appear during replication processing, simply because the application of replication events is not possible in some cluster nodes due to missing rows, excessive rows or wrong values in the row columns. As a result, this usually stops the replication process ...READ MORE


Step-by-step: Clustering with Galera and Docker Swarm

Wednesday, April 12 2:10 pm – 3:00 pm

[Read more]
USA Webinar-Galera Cluster® Best Practices for DBAs and DevOps Part 3: DDLs and Schema Upgrades Feb 21st



In this part of the webinar series on best practices for Galera Cluster, we will discuss schema changes and DDL.

We will show how Galera Cluster executes DDLs in a safe, consistent manner across all the nodes in the cluster, and the differences with stand-alone MySQL. We will discuss how to prepare for and successfully carry out a schema upgrade and the considerations that need to be taken into account during the process.

The webinar will conclude with a Q&A session where you can ask any questions you may have about Galera Cluster.

Time: 9-10 AM PST (Pacific time zone), 21st of  February

Speakers: Philip Stoev, Quality and Release Manager, Codership                Sakari Keskitalo, COO, Codership

[Read more]
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