On Thu, 2018-10-04 at 08:51 +0200, Jan Friesse wrote: > Ramasubramanian, > > > Hi Team, > > We are doing an upgrade of corosync to 2.4.0 and would like to know > > if that is compatible with 1.4.7. The reason is that one node in > > the cluster will be 1.47 during the upgrade.Let me know. > > No, Corosync 1.x and 2.x are not wire compatible. Configs usually > are. I > would recommend to turn off the 1.4.7 node as long as it's not using > crypto because messages sent by that node may crash 2.4.0 corosync > (fixed in 2.4.4) > > Regards, > Honza > > > Thanks,Venkat
If this is a pacemaker cluster, you can follow the detach-and-reattach upgrade method to upgrade corosync without affecting running cluster services: http://clusterlabs.org/pacemaker/doc/en-US/Pacemaker/1.1/html-single/Pa cemaker_Explained/index.html#_detach_and_reattach If this is part of a wider OS upgrade, which will require a reboot, then that will not be an option. -- Ken Gaillot <[email protected]> _______________________________________________ Users mailing list: [email protected] https://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
