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From Robert Newson <>
Subject Re: Replication and new user questions
Date Tue, 25 Aug 2009 21:37:44 GMT
I can only speak to the new continuous replication. After a few days
of stress testing and bug fixes from the team, it's really pretty


On Tue, Aug 25, 2009 at 10:17 PM, Miles
Fidelman<> wrote:
> Blair Zajac wrote:
>> Hello,
>> We're looking at using CouchDB's replication to allow us to easily have
>> multi-master replicating databases across multiple facilities, (e.g. Los
>> Angeles, Albuquerque, Bristol, England, etc).  It looks like it'll be the
>> perfect tool for the job.
>> Some questions on the current implementation and the work that I've read
>> is going to be in forthcoming releases.
>> 1) What's the most robust automatic replication mechanism?  While
>> continuous replication looks nice, I see there's some tickets open with it
>> and that it has issues with four nodes.  Is a more robust solution, but a
>> little slower and heavier, it to have an update_notification that manually
>> POSTs to _replicate?
>> 2) With the persistent continuous replication feature, is there a way to
>> stop continuous replication without restarting couchdb?  Will there be a way
>> to manage the list of replicant databases when the persistent continuous
>> replication feature is complete?
> I'm sort of interested in this too.  We have an application we're developing
> that's somewhat analogous to USENET News.  What we want to do is:
> 1. define arbitrary groups, analogous to newsgroups
> 2. distribute control messages to a large number of nodes, allowing a node
> to subscribe (or not)
> 3. when a message (document) is posted (inserted) into a group, it gets
> replicated to all subscribed nodes
> I keep looking at CouchDB and thinking this should be perfect for what we're
> doing, but the details of replication are really sketchy.
> Miles Fidelman
> --
> In theory, there is no difference between theory and practice.
> In practice, there is.   .... Yogi Berra

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