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Displaying posts with tag: Galera Manager (reset)
Time to check Galera Cluster security?

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 …

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Video tutorial: Installing Galera Manager to Deploy a Galera Cluster in Amazon Web Services (AWS) in 15 minutes

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

Galera Manager Support on Github with solutions for Docker and Apache users

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 …

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Galera Manager updated with usability improvements for self-hosted and monitored clusters

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 …

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Webinar recording available: Galera Manager is now GA with ability to launch clusters on premise and in the AWS cloud

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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Webinar: Galera Manager is now GA with ability to launch clusters on premise and in the AWS cloud

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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Galera Manager deploying on AWS with Red Hat Enterprise Linux 8 and MySQL 8

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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Codership Releases Galera Manager to easily deploy and manage Galera Clusters on premise and in Amazon Web Services

Codership, the leading MySQL High Availability clustering solutions company behind Galera Cluster, is pleased to announce the general availability of Galera Manager, a web-based graphical user interface (GUI) tool to easily deploy and manage your Galera Clusters. With today’s release, you can now create fully managed 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.

We now have the concept of a managed node (your typical MySQL instance) and managed host (your typical Linux instance) which you use to deploy Galera Cluster in Amazon EC2, a managed node and a monitored host for user provided hosts (on premise or …

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Galera Streaming Replication Feature Deep Dive Video and Blog

Just last week we had a Galera Cluster for MySQL streaming replication feature deep dive webinar, by the person that implemented it – Seppo Jaakola. In fact, if you haven’t already read the entire story, we encourage you to read: Galera Streaming Replication: Too Big A Bite Can Choke Your Cluster. We also have the 60 minute video recording for reference.

A huge number of Galera Cluster users have always complained about having issues with large transactions (where writes hang but reads are OK), and we are certain that the correct usage of streaming replication is what will ease that burden. What constitutes a large transaction? Typically when you make big number of …

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Installing Galera 4 with MySQL 8 on Ubuntu 20.04

A question has cropped up recently: how does one install Galera Cluster 4 with MySQL 8 on Ubuntu 20.04 LTS (Focal Fossa)? This quick guide will get you started.

Install 3 Galera Cluster nodes with the base OS being Ubuntu 20.04. Remember to run apt update and apt upgrade.

Once this is done, edit: /etc/apt/sources.list.d/galera.list and add the following lines:

deb https://releases.galeracluster.com/galera-4/ubuntu focal main
deb https://releases.galeracluster.com/mysql-wsrep-8.0/ubuntu focal main

Once that is done, don’t forget to also pin the preference to the Galera Cluster repository. To do this, edit: /etc/apt/preferences.d/galera.pref and have it read:

# Prefer the Codership repository
Package: *
Pin: origin releases.galeracluster.com
Pin-Priority: 1001

Once you are done, run apt update yet again. Now you are ready to install Galera Cluster 4 with MySQL 8, just …

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