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From Octavian Damiean <>
Subject Re: Couchbase Mobile to CouchDB on AWS - Looking for instance sizing advice.
Date Mon, 02 Jul 2012 18:15:16 GMT
Hello Douglas,

Is there a special reason for using a cron job to continously sync
between the two remote databases? CouchDB offers continous replication

Octavian Damiean

On Mon, Jul 2, 2012 at 7:28 PM, Douglas Turner <> wrote:
> Hello
> Let's see if I can articulate this sufficiently.
> Some background: I am a one person shop, I wear all the hats and I have been
> learning everything as I go for the last 18-20 months, so I am still a bit
> of a noob.
> I have an iOS app created in Titanium using Pegli's ti_couchbase module. If
> the user wants to enable syncing, they enter their requested GroupName,
> Password, eMail address.  The app reaches out to a php document that uses
> php-on-couchdb to check if the GroupName (database name) is available, if it
> is, that database is created with the proper authorization/password. This
> all works great and I am very pleased with it.
> I am currently running everything into IrisCouch. I am considering changing
> over to AWS as IrisCouch seems a bit slow, plus last week they were down all
> morning one day. I have everything up and running on an AWS micro instance.
> (Couchdb 1.2). In fact I have two instances, Couch A and Couch B. Couch B is
> my backup server and has a cron job running a script to continuously
> replicate everything on A to B.
> The current version of my app has about 3k users. If history is an
> indicator, when this syncing version is released, I expect about 250 users
> (world wide) per day to update to the sync version. I expect 80% will enable
> syncing. The numbers I am anticipating are 200 people per day creating a
> database initially syncing 300-600 documents (2-4Meg per db). The Couchdb
> server is for replication only.
> After the initial updates I anticipate an average of 15 users per day
> growth, databases created with less than 20 docs to start.
> Using Cloudant is not an option at this time and I would rather get away
> from IrisCouch.
> Will a Micro instance be sufficient or will I need to go larger?
> Thank you for the help and advice!

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