I had another follow-up question. Without any quorum provider (say, testquorum, votequorum), the cluster is always is "quorate". I observe that this is the "default" behavior.
Now, when a quorum provider like testquorum sets the quorum to "inquorate" (see below), what is the expected behavior? Do all the MCAST messages sent by/to this Node (on which quorum is "inquorate") fail? As an aside, "testquorum" seems to set only the local node quorum to "inquorate". The other node is unaffected! Thanks, - Kishore From: Sampathkumar, Kishore Sent: Tuesday, July 13, 2010 10:49 AM To: [email protected] Subject: What does the quorum service really do when it has no linkage to groups/nodes? The following are the entries I have made towards the end of /etc/corosync/corosync.conf: service { name: corosync_quorum ver: 0 } quorum { provider: testquorum } I then ran the following: [r...@localhost tools]# ./corosync-quorumtool -s Version: 1.2.3 Nodes: 0 Ring ID: 0 Quorum type: testquorum Quorate: No [r...@localhost tools]# ./corosync-cpgtool Group Name PID Node ID CPG1\x00 25398 846833856 (192.168.121.50) 2302 1064937664 (192.168.121.63) I want to tie the quorum to a specific "group" (in the above example CPG1). How do I do that? The API's for quorum declared in include/corosync/quorum.h do not have any reference to any CPG. So, what is the quorum expected to represent then? Quorum of Nodes in Ring 0? If so, how? How does a programmer "use" the quorum API's then? Thanks, - Kishore
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