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From Christian Polzer <>
Subject Re: Peer-to-Peer Replication
Date Wed, 06 Apr 2011 22:19:54 GMT
I will stop answering right now because I am also a beginner with CouchDB,
but finding a way of implementing a Foaf handling for replication would be nice. 
Kind of a trusted net like Gpg...


On 06.04.2011, at 22:44, Zdravko Gligic wrote:

>>> You can configure the replication for continuous replication, they will find
each other when
> available. Also, this is a key feature to CouchDB. That's why CouchDB
> for example is working
> so well with mobile devices: It's replicating when it's
> online/connected. Link:
> It has to be remembered, that  (until version 1.2, I think i remember)
> these settings are
> lost upon server restart.
> Does this mean that numerous replications can be set up for a single
> local CouchDB instance.  If so then given a community of 100,000's of
> peers, would then a logical solution be one where each peer was
> grouped into a subset of all of the peers, by some sort of most common
> attribute - such as replicating to/from one's friends - where
> hopefully through the"friends of friends" effect, eventually everyone
> eventually gets updated?  If this is even remotely the case, then what
> would be an optimal number of replications that any one local CouchDB
> should be configured with - 10's, 100's or 1000's of "friend" peers?
>>> CouchDB is all about local data, especially with replication (MVCC).
>>> There are many nice features with CouchDB replication, I would really recommend
reading the
> replication section in the CouchDB book.
>>> It is explained very understandable there.
> What I get out of that documentation is that CouchDB is quite
> sophisticated in making replication happen, once you tell it with whom
> it should to/from replicate.  However, I can not find anything that
> expands much on how one would set it up to replicate to/from a large
> pool of potential peers - hence my above questions.
> Thanks again.

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