The Galera Cluster Enterprise Edition

Codership is pleased to announce the Galera Cluster Enterprise Edition.

Galera Cluster Enterprise Edition consists of an enhanced Galera Cluster server, Galera Manager and Galera Load Balancer.

The enhanced Galera Cluster Server includes

1) A new Online Schema Upgrade method called Non Blocking Operations (NBO), adds more high availability to your cluster while performing schema changes.

• • Schema changes made on all cluster nodes in the same total order sequence, with much more efficient locking compared to the Total Order Isolation (TOI) method.
  • SET GLOBAL wsrep_OSU_method='NBO'

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Codership is pleased to announce a new release of Galera Manager. This is version 1.6.2 of Galera Manager GUI. Users will notice many usability improvements, and multiple fixes for issues filed at the galera-manager-support issue tracker.

The biggest user facing feature is now being able to deploy Galera Manager managed nodes on DigitalOcean, in addition to Amazon Web Services (AWS) Elastic Compute Cloud (EC2). Now with an access token, one can fully deploy a managed cluster from within Galera Manager. 3 node fully managed Galera Clusters on Digital Ocean in under 10 minutes? This is the promise and delivery of the latest Galera Manager.

From a security standpoint, SSL …

Recently we got a question about how one can perform a minor version upgrade of a Galera Cluster, and today we just want to say that it is reasonably straightforward. While upgrades are a feature of Galera Manager that we are most excited to see come soon, today, doing it manually on the command line is quite simple! In this post, we will go through upgrading a 9-node geographically spread cluster, from MySQL 8.0.23 to 8.0.26. We also have extensive documentation: Upgrading Galera Cluster.

We have 3 nodes each in Singapore, London and San Francisco, making the cluster comprise of a total of 9 nodes, as we can confirm by executing: show status like 'wsrep_cluster_size';.

Since we installed all this via the RPM package manager on CentOS 7 by adding the YUM repository to the …

There are plenty of articles on the Internet that tell you to setup a Galera Cluster by disabling an OS based firewall and also disabling SELinux. While we agree that this might be the fastest way to get your Galera Cluster setup, it is not necessarily good security hygiene, and we would prefer if you started 2022 with a bit more secure Galera Cluster!

What is SELinux? Is is Security-Enhanced Linux that allows administrators to allow who has more control over the system. It has permissive and enforcing mode, and is turned on by default in Red Hat Enterprise Linux and derivatives. It is important to remember that if you install Galera Cluster via a package that we provide, we have provided all the necessary contexts for it. You effectively do not have to disable SELinux to get started.

However, if you are using the rsync method for a …

This video tutorial describes how to install Galera Manager in 15 minutes while also deploying a Galera Cluster in Amazon Web Services (AWS), all in an automated fashion!

WATCH THE VIDEO

As more people test, utilise and deploy Galera Manager, there is always room for support requests, and we see that at the Galera Manager Support Repository on Github. We encourage you to file requests, as they help with our roadmap as well!

We have had a feature request to run within a Docker container, and while we work on documentation and an official solution, we do have a temporary solution. Try it with Docker!

We have had a feature request to be able to support …

Codership is pleased to announce a new release of Galera Manager. This brings the installer to version 1.5 and the actual Galera Manager GUI to 1.4.0.

Users will notice some usability improvements like the cluster name being added to the authorized_keys generated file, while there are benefits around gmd generating a new key for the updated installation. There is also a port checker, so if ports are used and unavailable, the user will be informed and Galera Manager will refuse to install. In addition, on Debian/Ubuntu where apt/dpkg supports interactivity, we have now ensured that all steps will remain non-interactive.

  We now have native support to deploy MariaDB Server 10.6 From the Galera Manager GUI standpoint, we have ensured that job monitoring and charts have better performance. One user experience enhancement for monitored or self-hosted clusters? Galera Manager now checks to ensure it has access to …

This is a new era in deploying, managing and monitoring your Galera Cluster for MySQL, with the recently released Galera Manager, now Generally Available (GA). Galera Manager is a web-based graphical user interface (GUI) tool that allows you to fully manage clusters in Amazon Web Services, you can also deploy clusters on user provided hosts (on premise or in the cloud) and you can also fully monitor your existing clusters.

In this Webinar, we will cover:

• Deploying a fully managed cluster in AWS
• Deploying a cluster on user-provided hosts
• Monitoring an existing cluster
• How we have chosen to use CLONE SST for MySQL 8 deployments
• How you can successfully deploy all the various servers that we support
• Utilising the over 600 monitoring metrics to effectively manage your Galera Cluster

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This is a new era in deploying, managing and monitoring your Galera Cluster for MySQL, with the recently released Galera Manager, now Generally Available (GA). Galera Manager is a web-based graphical user interface (GUI) tool that allows you to fully manage clusters in Amazon Web Services, you can also deploy clusters on user provided hosts (on premise or in the cloud) and you can also fully monitor your existing clusters.

In this Webinar, we will cover:

• Deploying a fully managed cluster in AWS
• Deploying a cluster on user-provided hosts
• Monitoring an existing cluster
• How we have chosen to use CLONE SST for MySQL 8 deployments
• How you can successfully deploy all the various servers that we support
• Utilising the over 600 monitoring metrics to effectively manage your Galera Cluster

…

Since we just released Galera Manager, it seemed like a good idea to do a deployment on Amazon Web Services (AWS) using Red Hat Enterprise Linux 8 and MySQL 8.

We start by launching an EC2 instance and choosing Red Hat Enterprise Linux 8 (HVM) and most importantly, we only choose the 64-bit (x86) architecture as we do not support ARM just yet. We choose a t2.micro instance for Galera Manager since this is just a test instance, but it is well worth knowing that 10GB which is the default EBS size may be a little small if you plan on using this for sometime.

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