bionic (8) corosync-qdevice-tool.8.gz

NAME

       corosync-qdevice-tool - corosync-qdevice control interface.

SYNOPSIS

       corosync-qdevice-tool [-Hhsv] [-p qdevice_ipc_socket_path]

DESCRIPTION

       corosync-qdevice-tool  is  a  frontend  to the internal corosync-qdevice IPC. Its main purpose is to show
       important information about the current internal state of corosync-qdevice.

OPTIONS

       -H     Properly shutdown the corosync-qdevice process

       -h     Display a short usage text

       -s     Display the status of the corosync-qdevice process. The output is described  in  its  own  section
              below.

       -v     Display more verbose output for the -s option.

       -p     Path to the corosync-qdevice communication socket.

STATUS COMMAND OUTPUT

       Qdevice information
       -------------------
       Model:                  Net
       Node ID:                1
       HB interval:            10000ms
       Sync HB interval:       30000ms
       Configured node list:
           0   Node ID = 1
       Heuristics:             Enabled
       Ring ID:                1.a00000000021b48
       Membership node list:   1
       Quorate:                Yes
       Quorum node list:
           0   Node ID = 1, State = member
       Expected votes:         2
       Last poll call:         2016-06-24T17:05:20 (cast vote)

       Qdevice-net information
       ----------------------
       Cluster name:           Cluster
       QNetd host:             localhost:5403
       Connect timeout:        8000ms
       HB interval:            8000ms
       VQ vote timer interval: 5000ms
       TLS:                    Supported
       Algorithm:              Fifty-Fifty split
       Tie-breaker:            Node with lowest node ID
       Poll timer running:     Yes (cast vote)
       State:                  Connected
       Heuristics result:      Pass (regular: Pass, membership: Fail, connect: Fail)
       TLS active:             Yes (client certificate sent)
       Connected since:        2016-06-24T17:02:35
       Echo reply received:    2016-06-24T17:05:15

       The  output  is split into a generic qdevice section and a model specific section.  Most of the items are
       just taken from corosync.conf file. It's helpful to note that the Membership node list is the  membership
       list  of the current node and should match the quorum node list.  Last poll call is the timestamp (in iso
       format) of the last call to the votequorum_qdevice_poll function.

       For model net, it's good to check the Poll timer running state. Internally, model net supports 3  states.
       Not  voting (when Poll timer running is No, which means corosync-qdevice is waiting for corosync-qnetd to
       reply), voting (without cast vote, it means that the corosync-qnetd algorithm decides  that  the  current
       node shouldn't get a vote) and voting (with cast vote).

SEE ALSO

       corosync-qnetd(8) corosync-qdevice(8)

AUTHOR

       Jan Friesse

                                                   2017-10-17                           COROSYNC-QDEVICE-TOOL(8)