I'm trying to set up a high availability cluster for learning purposes, but I want to do it without a RHEL subscription. Is there any way to install the necessary packages and create a test cluster on RHEL, CentOS, AlmaLinux, or Rocky Linux? I've tried downloading the packages individually with wget from various sources, but I keep running into dependency issues. I'm fairly comfortable with CentOS and Rocky Linux, but I've also heard that clustering can work well on SUSE Linux, although I haven't tried that yet.
6 Answers
You might also want to look into the free Developer for Individuals subscription that RHEL offers. It gives you access to the necessary repositories for high availability.
If you don't mind trying other distributions, Debian has Corosync and Pacemaker packages available, which might help you set up a high availability cluster.
If you're looking for an easy way to set this up, consider checking out this guide on Corosync and Pacemaker for AlmaLinux: https://reintech.io/blog/high-availability-corosync-pacemaker-almalinux-9. It could give you the info you need to get started!
It really depends on what kind of clustering you're after. For example, Slurm and LSF are good for load scheduling and work well with RHEL derivatives and SLES. But if you're interested in virtualization, you're better off sticking with RHEL options like Openshift or using something like QEMU or Proxmox with a Debian base.
Could you clarify what kind of cluster you're referring to? There are different types like database, virtualization, or Kubernetes clusters, and each one has its own setup requirements.
AlmaLinux and Rocky Linux exist to offer free alternatives, so you might want to go that route. Alternatively, you can get a free developer license from RedHat to access their capabilities.
Related Questions
How To Get Your Domain Unblocked From Facebook
How To Find A String In a Directory of Files Using Linux