On 06/24/2016 08:46 PM, Maciej Kopczyński wrote: > Hello, > > I've been following a tutorial to set up a simple HA cluster using > Pacemaker and Corosync on CentOS 6.x while I have noticed that in the > original documentation it is stated that: > > "Since |pcs| has the ability to manage all aspects of the cluster (both > corosync and pacemaker), it requires a specific cluster stack to be in > use: corosync 2.0 or later with votequorum plus Pacemaker 1.1.8 or later."
That's incorrect -- pcs has supported RHEL 6 and its derivatives (with corosync 1 and CMAN) since at least 6.5. Thanks for bringing it up; I'll delete that note. > Here are the versions of packages installed in my system (CentOS 6.7): > pacemaker-1.1.14-8.el6.x86_64 > corosync-1.4.7-5.el6.x86_64 > > I did not do that much of testing, but my cluster seems to be more or > less working so far, what are the compatibility issues then? What will > not work with corosync in version lower than 2.0? corosync 2 is a cleaner implementation and has better message delivery guarantees, but most of that is transparent to the user. With corosync 1, pacemaker will use a "legacy" version of the node attribute daemon, so the attrd_updater command has fewer options. Most of the other differences are in implementation, and may be less efficient for example, but are not readily visible. > Thanks in advance for your answers. > > MK _______________________________________________ Users mailing list: Users@clusterlabs.org http://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