Two-node cluster configuration
As already mentioned, the quorum provider in the CentOS 7 cluster stack is Corosync version 2. Therefore, the cluster quorum configuration is provided in the corosync.conf
configuration file. With the previous Corosync version (version 1), the quorum capabilities were provided by CMAN; with Corosync version 2 included in the CentOS 7 cluster stack, the quorum capabilities are provided by Corosync itself, specifically by the votequorum
process.
If you are configuring a two-node cluster on the CentOS 7 cluster stack, you should enable the two_node
cluster option by adding the following parameter to the corosync.conf
Quorum section:
two_node: 1
By enabling the two_node
cluster option, the quorum is artificially set to ...
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