corosync-cfgtool shows "link enabled:0" for links on the local node in a Pacemaker cluster with multiple redundant links

Solution Verified - Updated -

Issue

  • The corosync-cfgtool -s command shows "link enabled:0" for all except the first link for the local node, even though it shows "link connected:1" (with older corosync versions).

    node-1# corosync-cfgtool -s
    Printing link status.
    Local node ID 1
    LINK ID 0
        addr    = 192.168.22.23
        status:
            nodeid  1:  link enabled:1  link connected:1
            nodeid  2:  link enabled:1  link connected:1
    LINK ID 1
        addr    = 192.168.23.23
        status:
            nodeid  1:  link enabled:0  link connected:1
            nodeid  2:  link enabled:1  link connected:1
    
  • The corosync-cfgtool -s command shows "localhost" instead of "connected" for all except the first link (with newer corosync versions).

    [root@sky-node-01 corosync]# corosync-cfgtool -s
    Printing link status.
    Local node ID 1
    LINK ID 0
        addr = 192.168.122.101
        status:
            nodeid  1:    connected
            nodeid  2:    connected
    LINK ID 1
        addr = 192.168.110.101
        status:
            nodeid  1:    localhost
            nodeid  2:    connected
    LINK ID 2
        addr = 192.168.120.101
        status:
            nodeid  1:    localhost
            nodeid  2:    connected
    

Environment

  • Red Hat Enterprise Linux 8 (with the High Availability Add-on)
  • A Pacemaker cluster with multiple redundant knet links

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