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From Keith Gable <>
Subject Re: Couchbase Mobile to CouchDB on AWS - Looking for instance sizing advice.
Date Thu, 05 Jul 2012 03:19:04 GMT
I would use at least a m1.small, but if a service provider is too slow,
either they really suck, or you need much more infrastructure than they
have. I assume they have several servers, and they're probably better than
m1.small... so rolling your own here is probably not going to be cost

Also, as a person who spent quite a bit of time in Titanium... it's slow. I
would try benchmarking your app using ab and curl. This will help you model
traffic patterns quickly so that you know what needs improvement. I find
that a simple XHR request that takes 20-30ms in curl takes 250-300ms in
Titanium in the iOS simulator. Maybe it's because I'm sending a few
floating point numbers in the request, but I have no idea why it would make
it an order of magnitude slower (besides my default answer regarding
Titanium: Titanium sucks).
On Jul 2, 2012 4:00 PM, "Douglas Turner" <> wrote:

> When testing I have noticed IrisCouch to be slower, but the micro EC2
> instance really isn't experiencing a real load either. Could be any number
> of factors such as PHP EC2 to Couch EC2 micro vs PHP EC2 to IrisCouch.
> Internal network vs external.
> A programmer I know with pretty extensive server experience thought a
> micro would be fine as it's just many small IOs, but his experience with
> AWS is minimal and CouchDB is zero. My gut disagrees, but what do I know?
> I am trying to sort through all of this, thus me asking for instance
> sizing advice. Thought I might get some feedback from the people with
> experience.
> -noob
> On 7/2/12 1:43 PM, Robert Newson wrote:
>> I'd love to hear if IrisCouch is slower an a micro EC2 instance, I'd be
>> astonished. Using a micro for anything serious, like a production database,
>> is "penny wise, pound foolish" imo.
>> B.
>> On 2 Jul 2012, at 18:28, 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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