On 02/13/2018 11:46 AM, Maxim wrote: > 12.02.2018 19:31, Digimer пишет: >> Without fencing, all bets are off. Please enable it and see if the > > issue remains > Seems, i know [in theory] about the fencing ability and its importance > (although I've never configured it so far). > But i don't undestand how it would help in the situtions of the hard > reboot/shutdown.
Actually in 2 ways: - you are strongly advised to use fencing - and thus the base of users using fencing is much higher and strange/unexpected behavior is thus much more likely with the less tested setups without fencing - fencing helps you turning the 'maybe the node is down - it doesn't respond within x milli-seconds' into certainty that your node is dead and won't interfere with the rest of the cluster Regards, Klaus > >> Changing EL6 to corosync 2 pushes further into uncharted waters. EL6 > > should be using the cman pluging with corosync 1. May I ask why you > > don't use EL7 if you want such a recent stack? > For historical reasons. Let's say so. I've another software that built > for RHEL 6 like OS and have to be installed on the cluster node. > EL 7 stack is already not so recent, but it's one the most stable and > least vulnearable, i suppose. And i understand the risks. > I will update pcs to the latest version when i find a bit of free time. > _______________________________________________ > Users mailing list: Users@clusterlabs.org > http://lists.clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Users mailing list: Users@clusterlabs.org http://lists.clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org