> >>> I'd like to get a sense of how people upgrade their clusters... > >>> * rolling upgrade (node-by-node) > >>> * big-bang (all nodes at once with all resources stopped) > >>> * detach and reattach (all nodes at once with resources still running) > >>> * other? > >>> I'm interested to know how popular the various methods are. > >>> Andrew > >> I prefer no. 3 (detach and reattach). > >> > >> Works quite nicely. > > > > Do you do that node-by-node or cluster-wide? > > Cluster wide. > > Backup cib.xml > Stop all monitor operations > Set all resources unmanaged > Stop heartbeat on all nodes > Upgrade heartbeat / install pacemaker on all nodes > Start heartbeat on all nodes > > See what the cluster would do when re-activating it > <beekhof> before you turn back on is-managed... > <beekhof> cibadmin -Ql > tmp.xml > <beekhof> vi tmp.xml (change is-managed) > <beekhof> ptest -VVVVV -X tmp.xml -D tmp.dot > <beekhof> look in tmp.dot and see what we'd do > > If that's to my linking: > > Set all resources managed > Start all monitor operations
well... I'll try this way. order of preference; 3 (detach and reattach) > 1 (rolling upgrade) > 2 (big-bang) So far, we have chosen 1 or 2 (mainly 2 with hesitancy), if 3 is possible (and stable), it's the best one. We have no experience of updating on VM . Thanks, Junko _______________________________________________ Pacemaker mailing list [email protected] http://list.clusterlabs.org/mailman/listinfo/pacemaker
