Modify quorum options

You can modify general quorum options for your cluster with the pcs quorum update command. Running this command requires that the cluster be stopped. For information on the quorum options, see the votequorum(5) man page on your system.

About this task

The format of the pcs quorum update command is as follows.

# pcs quorum update [auto_tie_breaker=[0|1]] [last_man_standing=[0|1]] [last_man_standing_window=[time-in-ms] [wait_for_all=[0|1]]

The following example procedure modifies the wait_for_all quorum option and displays the updated status of the option. Note that the system does not allow you to modify this option while the cluster is running.

Procedure

  1. Attempt to modify the wait_for_all quorum option on a running system. 
    [root@node1:~]# pcs quorum update wait_for_all=1
     
    Checking corosync is not running on nodes...
Error: node1: corosync is running
Error: node2: corosync is running
  2. Stop the cluster processes to modify the wait_for_all quorum option. 
    [root@node1:~]# pcs cluster stop --all
     
    node2: Stopping Cluster (pacemaker)...
node1: Stopping Cluster (pacemaker)...
node1: Stopping Cluster (corosync)...
node2: Stopping Cluster (corosync)...
  3. Modify the wait_for_all quorum option on a stopped system. 
    [root@node1:~]# pcs quorum update wait_for_all=1
     
    Checking corosync is not running on nodes...
node2: corosync is not running
node1: corosync is not running
Sending updated corosync.conf to nodes...
node1: Succeeded
node2: Succeeded
  4. Display the quorum configuration 
    [root@node1:~]# pcs quorum config
     
    Options:
  wait_for_all: 1