On 2017-07-05 09:03 PM, mlb_1 wrote: > Hi: > I heard corosync-node's number limit to 16? It's true? And Why? > Thanks for anyone's answer. > > > > https://specs.openstack.org/openstack/fuel-specs/specs/6.0/pacemaker-improvements.html > > > > * Corosync 2.0 has a lot of improvements that allow to have up to 100 > Controllers. Corosync 1.0 scales up to 10-16 node
There is no hard limit on how many nodes can be in a cluster, but Red Hat supports up to 16. SUSE supports up to 32, iirc. The problem is that it gets harder and harder to keep things stable as the number of nodes grow. There is a lot of coordination that has to happen between the nodes and it gets ever more complex. Generally speaking, you don't want large clusters. It is always advised to break things up it separate smaller clusters whenever possible. -- Digimer Papers and Projects: https://alteeve.com/w/ "I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops." - Stephen Jay Gould _______________________________________________ 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