How to Configure and Maintain High Availability/Clustering in Linux

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Aaron Kili

Aaron Kili is a Linux and F.O.S.S enthusiast, an upcoming Linux SysAdmin, web developer, and currently a content creator for TecMint who loves working with computers and strongly believes in sharing knowledge.

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18 Responses

  1. pippin Han says:

    [solved] first, In my case the same symptom occurred: floating_ip consistently runs on serverA while http_server runs on serverB.

    It was a very difficult situation and the secret was in grouping…

    $ sudo crm configure group hakase_balancing floating_ip http_server

    That’s It! running fine without any issues..

  2. Mark says:

    You should move the firewall exceptions bit up higher in the config as ports needs to be opened to properly jump start the cluster. Also, I ran through this twice and the command “sudo pcs cluster stop http_server” tells me “nodes ‘http_server‘ do not appear to exist in configuration.

    In addition to the above issues, floating_ip consistently runs on serverA while http_server runs on serverB. So the site is offline at the floating IP and at the IP of the server that has the floating ip.

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