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A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

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Keepalived (lemmy.ml)

submitted 1 year ago by [email protected] to c/[email protected]

9 comments fedilink hide all child comments

I am currently looking into High Availability for my work setup. I am having some problems understanding how to achive that. I have two servers, one running libvirt and a couple VM, the other one nothing much yet.

To achieve HA with keepalived, I would have to setup the exact same VMs under the second server, right? If that's the case, how would I make sure that the "mirrors" stay equal, If for example the master goes down, the backup takes over, some changes are made in a DB and the master knows nothing about these changes.

Maybe I misunderstood keepalived so far, can somebody provide me with an example setup or hints on how to achieve what I want to do?

Kind Regards

g7s

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[–] [email protected] 1 points 1 year ago (1 children)

I'm working for our department as the only IT-admin, everything runs fine and nightly downtimes for upgrades etc. are fine. However, I want to make it more available. Thanks for the suggestions, I will look into them :)

[–] [email protected] 3 points 1 year ago* (last edited 1 year ago)

Other data replication technologies worth looking in to: GlusterFs, Ceph.

Dependent on your db's they should offer replication out of the box.

You can also implement a load balancer, such as HAProxy or Nginx, to distribute incoming network traffic across multiple VMs