On Fri, Oct 10, 2014 at 02:08:51PM +0100, Mark Rogers wrote:
Suppose I have several PCs (call them Raspberry Pis, because they probably will be) each collecting data from local sources (eg temperature data via a local sensor), logging it to a local database, and making it visible via a local display on HDMI and/or via a web browser.
If I want to take advantage of the fact that they're all networked and allow each of them to pull the stored data from all their neighbours, what would be the simplest way to achieve this?
Database replication etc feels like overkill.
I don't really want there to be a "master", I'd like to think of them all as equivalent peers.
NFS? Come up with a reasonably sensible set of names for them, then each can export an area (specific user?) that all the others can see. Or alternatively have one provide a common NFS share that all can write to and put their data.