Forgot to disable maintenance mode in instruction 6) sudo crm configure property maintenance-mode=false
On Wed, Oct 21, 2020 at 6:49 PM Igor Tverdovskiy < igor.tverdovskiy...@gmail.com> wrote: > Hi Jiaqi, > > The most reliable way to add a new node according to my practice is the > following: > 1. update corosync.conf files among all hosts in cluster including the new > node > 2. copy corosync auth file to the new node > 3. enable maintenance: > a) sudo crm configure property maintenance-mode=true > When global maintenance mode is enabled you may safely stop pacemaker and > corosync services > > b) sudo crm status > ensure it is enabled on all nodes(it is global mode, but if you have > split-brain not all nodes can be affected by command) > 4. stop pacemaker and corosync services on all nodes > 5. start pacemaker and corosync services on all node *on by one (one node > at a time)* > > After this you will have all nodes in a cluster. You may try to do a > simple restart of pacemaker and corosync services without stopping them > and without starting in a sequence, but this will not always work. >
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