proxmox reduce quorum votes / fencing

Discussion in 'Proxmox VE: Installation and configuration' started by Spiros Papageorgiou, Apr 5, 2019.

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  1. Spiros Papageorgiou

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    Hi all,

    Today, I rebooted one node and every node of cluster rebooted...
    Now, the details:
    I have a cluster of 4 nodes, where 1 is constantly down, because it has a hardware failure and we are waiting for spare parts. So, the cluster has 4 nodes, where 3 of them are alive.
    Now, I rebooted one of the 3 alive nodes and the other 2 immediately followed and rebooted.

    1. First question: I assume that the 2 nodes that were alive believed that the lost quorum. Is that correct? 2 out of 4 votes, is not enough ?
    2. Can i reduce the expected votes for quorum to 2, in order to have quorum with 2 nodes, while my 4h node is been fixed?
    3. Can i change/control the behaviour of fencing?

    Thanx,
    Sp
     
  2. dietmar

    dietmar Proxmox Staff Member
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    exactly

    Either change the the number of votes on then running nodes, or temporarily set

    # pvecm expected 2

    no
     
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  3. Spiros Papageorgiou

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    Hi Dietmar,

    Thanx for the answer.
    Perhaps it would be a nice idea, to put a vibrant warning on the Proxmox GUI, that the cluster is in a state with no node redundancy at the moment. This kind of warning might break my false sense of redundancy because I had 3 active nodes in the cluster...

    Regards,
    Sp
     
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