>>> Ken Gaillot <kgail...@redhat.com> schrieb am 26.04.2021 um 20:06 in Nachricht <ba08c8bb758a9f55d23127cca9123aa443f63746.ca...@redhat.com>: > On Mon, 2021-04-26 at 17:04 +0000, Moneta, Howard wrote: >> Hello community. I have read that it is not recommended to set >> Pacemaker and corosync to enabled/auto start on the nodes. Is this >> how people have it configured? If a computer restarts unexpectedly, >> is it better to manually investigate first or allow the node to come >> back online and rejoin the cluster automaticly in order to minimize >> downtime? If the auto start is not enabled, how do you handle >> patching? I’m using Pacemaker with PAF, PostgreSQL Automatic >> Failover. I had thought to follow the published guidance and not set >> those processes to enabled but other coworkers are resisting and >> saying that the systems should be configured to recover by themselves >> around patching or even a temporary unplanned network/virtualization >> glitch. >> >> Thanks, >> Howard > > Hi Howard, > > It's a matter of preference. You summed up the pros and cons of each > side quite well. :) > > The manual approach leans more to safety. For example, if a node got > fenced because its network card is flaky, or a disk is having write > errors, then having it automatically rejoin is just going to repeat the > problem. > > The automated approach leans more to quick self-recovery, and is more > convenient in larger organizations where not every administrator that > has access to the host for applying updates etc. is trained on the > cluster software.
As auto-start is usually paired with auto-stop, enabling those has the advantage that a clean node restart could be as simple as pressing Ctrl+Alt+Del, while some stressed admins may forget to shutdown the cluster node before restarting... Regards, Ulrich > -- > Ken Gaillot <kgail...@redhat.com> > > _______________________________________________ > Manage your subscription: > https://lists.clusterlabs.org/mailman/listinfo/users > > ClusterLabs home: https://www.clusterlabs.org/ _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/