Hi everyone,I install and configure pacemaker with corosync and I add some resources like apache or vsftp.Now I want send some notifications when my resources change node.
on 08/16/2012 – Made popular on 08/16/2012
I've reached the end of my small wisdom with pacemaker Cluster on RHEL6.
I read a lot of howto's and got it actually running so far. But I had to discover now that there seems to be no probing or monitoring at all on resources which are not online on a node.
I couldn't find anything helpfull so far.
I am evaluating some Linux based HA solutions and i just want to understand what are the fundamental differences between a Corosync + Pacemaker setup vs a Corosync + Accord setup. Which one is better? I read somewhere that Corosync+ Pacemaker is good to scale upto 60 nodes, while Accord and Corosync can scale upto 1000 nodes. Why such huge difference? Thank you.
I'd like to build a two or three node Pacemaker cluster that would manage Xen (or possibly KVM) virtual machines.
Is it possible to set up the Pacemaker cluster (or some of its components) in such a way that when all nodes are active the VMs will use all available RAM but when one node fails the cluster will reduce VM's memory to fit them all on remaining nodes?