I’m looking for a simple way to replicate data within a cluster.
It looks like my resources will be self-configuring and may need to push changes they see to all nodes in the cluster. The idea being that when a node crashes, the resource will have its configuration present on the node on which it is restarted. We’re talking about a few kb of data, probably in one file, probably text. A typical cluster would have multiple resources (more than two), one resource per node and one extra node.
Could I use the CIB directly to replicate data? Use cibadmin to update something and sync?
How big can a resource parameter be? Could a resource modify its parameters so that they are replicated throughout the cluster?
Is there a simple file replication Resource Agent?
Drdb seems like overkill.
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