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[Linux-cluster] Simple data replication in a cluster

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.


Mark K Vallevand   Mark Vallevand Unisys com

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