On 04/03/2014 01:58 PM, Vallevand, Mark K issued this missive:
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. Ideas? 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.
If you're OK with it and it's a small group of files/directories, why not use something like inotifywait and have it run a script that rsyncs the altered files to the other nodes when the files change? I've done it before and it works pretty well. -- ---------------------------------------------------------------------- - Rick Stevens, Systems Engineer, AllDigital ricks@xxxxxxxxxxxxxx - - AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 - - - - Never eat anything larger than your head - ---------------------------------------------------------------------- -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
