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From Paketix <pake...@bluewin.ch>
Subject CouchDB / 200 sites global replication *without* full mesh
Date Tue, 27 May 2014 09:35:54 GMT
dear community,
I would like to implement global configuration replication for a cloud service.
the customer can update its service configuration at any site and changes are replicated worldwide.
eg.
main CouchDB sites in
- USA
- Europe
- Asia
main sites are full-mesh connected OR connected like a backbone ( USA---Europe---Asia ) always
with bi-directional replication between main sites.
sub sites in each region are connected in a ‚LDAP tree‘ way which connects to main site
in the region.
eg:
- Western Europe will do a bi-directional replication to Europe node only
- France node will do a bi-directional replication to Western Europe node only
- Germany node will do a bi-directional replication to Western Europe node only
- and so on …
this would mean a 3-layered approach down to each country node
a fourth layer may consist of different towns in the county
eg:
- Frankfurt node will do a bi-directional replication to Germany node only
- Berlin node will do a bi-directional replication to Germany node only

any way to do such a structure with CouchDB?
anyone already using such a strucure?
is it possible to connect 200 servers this way (globally)?
any ideas about replication time to expect in such a configuration (if possible at all…)?
are there tools which are better suited to implement my needs?

hope this is not too crazy of an idea :)
kind regards
/pat
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