Codership is proud to announce the first Generally Available (GA) release of Galera Cluster 4 for MySQL 8 and improve MySQL High Availability a great deal. The current release comes with MySQL 8.0.19 and includes the Galera Replication Library 4.5 with wsrep API version 26. You can download it now (and note that we have packages for various Linux distributions). 

Galera 4 and MySQL 8.0.19 have many new features, but here are some of the highlights:

• Streaming replication to support large transactions by splitting transaction replication then applying them in smaller fragments. You can use this feature to load data faster, as data is written to all nodes simultaneously (or not at all in case of a failure in any single node).
• Improved …

We recently covered Installing Galera Cluster 4 with MySQL 8 on Ubuntu 18.04 , the new Galera version for MySQL High Availability. We got a request to see if we would be able to install it on Amazon Linux 2, and the short answer is yes, we are able to deploy Galera Cluster on Amazon Linux 2.

We have even published Installing a Galera Cluster on AWS guide for Geo-distributed MySQL Multi-master clustering which covers how to install a 3-node Galera Cluster on CentOS 7 to achieve disaster recovery . It turns out, Amazon Linux 2 tends to be quite compatible with this article ( …

Since the beta of Galera Cluster 4 with MySQL 8 has been released, we’ve had people asking questions as to how to install it on Ubuntu 18.04. This blog post will cover just that.

Prerequisites

• All 3 nodes need to have Ubuntu 18.04 installed
• Firewall (if setup) needs to accept connections on 3306, 4444, 4567, 4568 (a default setup has the firewall disabled)
• AppArmor disabled (this is as simple as executing: systemctl stop apparmor and systemctl disable apparmor).

Installation and Configuration

We have good installation documentation as well as a quick how to get this installed in AWS (though this is CentOS centric).

First, you will need to ensure that the …

How to achieve MySQL high availability, data protection & disaster recovery

This MySQL high availability and disaster recovery use case is based on a customer of ours who is a government-regulated lottery service consisting of a number of games of chance. Its mission is to fuel imagination – and fund education for all citizens of their state as it uses the proceeds of its activities to do so. Through its games, it has provided billions of dollars in scholarship and other such education funding for several decades.

What is the Challenge?

As is common for gambling and betting organisations, our customer faced a number of challenges and needed to have a solid infrastructure in place in order to provide its services satisfactorily.

This includes:

• Ensuring 24/7/365 availability of its online gaming platform
• Handling thousands of transactions quickly and while ensuring zero downtime …

A time for new beginnings beckons upon us, and Codership is pleased to announce the much anticipated Release Candidate of MySQL 8.0 that comes with Galera 4. It comes with MySQL 8.0.19 and includes the Galera Replication Library 4.5 Release Candidate and wsrep API version 26. 

Galera 4 and MySQL 8.0.19 have many new features, but here are some of the highlights:

• Streaming replication to support large transactions by splitting transaction replication then applying them in smaller fragments.
• Improved foreign key support, as write set certification rules are optimised and there will be a reduction in the number of foreign key related false conflicts in certifications.
• Group commit is …

In this fourth post in our MySQL Use Case Blog Series we look at a customer of ours who was able to grow their Saas business from tens of customers initially to thousands of enterprise customers once they achieved continuous MySQL operations with Continuent Tungsten.

This particular customer, based in California, develops and sells automation software for account-based marketing as well as other marketing services and products such as SEO and content marketing. They provide solutions tailored for large enterprises and fast-growing, small businesses alike covering all industry types from technology all the way to higher education.

So how did this fast growing marketing automation SaaS provider scale from tens of customers to thousands of enterprise customers using Tungsten Clustering (currently with 600+ MySQL instances)?

The Challenge

SaaS and other web applications are inherently 24/7/365 operations, thus they …

Codership is pleased to announce a new Generally Available (GA) release of Galera Cluster for MySQL 5.6 and 5.7, consisting of MySQL-wsrep 5.6.47 (release notes, download) and MySQL-wsrep 5.7.29 (release notes, download) with a new Galera Replication library 3.29 (release notes, download), implementing wsrep API version 25. This …

Understanding MySQL 8.0 Group Replication Limitations to build an highly reliable MySQL Infrastructure Operations  Introduction – Redundant and fault-tolerant database systems

Most of our customers are 24*7 internet properties and their applications ( i.e. entire business operations) rely heavily on availability of respective database systems nodes, These systems going unavailable cause serious impact on reputation, customer experience and revenue. To ensure business continuity under foreseeable and unforeseeable man-made or natural disasters, the database system has to be designed and built with fault tolerance and disaster recovery capabilities, in other words the component can be removed and the system should continue to operate as expected. High availability refers to the characteristics of a system that allow the system to sustain continuous operation in the event of hardware and software failures due to natural or man …

Zero Downtime SaaS Provider — How to Easily Deploy MySQL Clusters in AWS and Recover from Multi-Zone AWS Outages

This is the second post in a series of blogs in which we cover a number of different Continuent Tungsten customer use cases that center around achieving continuous MySQL operations with commercial-grade high availability (HA), geographically redundant disaster recovery (DR) and global scaling – and how we help our customers achieve this.

This use case looks at a multi-year (since 2012) Continent customer who is a large Florida-based SaaS provider dealing with sensitive (HIPAA Compliant) medical data, which offers electronic health records, practice management, revenue cycle management and data analytics for thousands of doctors.

What is the Challenge?

Lack of high availability in AWS. The challenge they were facing came from using AWS, which allowed them to rapidly provision database and …

Codership is pleased to announce a new Generally Available (GA) release of Galera Cluster for MySQL 5.6 and 5.7, consisting of MySQL-wsrep 5.6.46 (release notes, download) and MySQL-wsrep 5.7.28 (release notes, download). There is no Galera replication library release this time, so please continue using the 3.28 version, implementing wsrep API version 25.

This release incorporates all changes to MySQL 5.6.46 and 5.7.28 respectively and can be considered an updated rebased version. It is worth noting that …