Hi Dude and Chris

Chris, it’s worth noting that he is exceed his 4k cookie storage limit, not 
session limit.  I second Chris’ question about "what are you storing in the 
cookie ?” .  Without seeing any code, I’m just guessing, but typically you 
should only store light weight stuff in the cookie.  It’s been awhile since 
I’ve set up Devise, but in general, you should usually just store unique keys 
that point to values in the session (or other data store) in your cookie.  You 
should also not store anything sensitive in the cookie.  I’ve used Devise with 
multiple users logged in at the same time (admin and reg user) without 
problems.  Maybe you can show us some code ?  Apologies in advance if I am 
misinterpreting your problem.

Cheers

Ben W

On April 6, 2014 at 11:53:41 AM, Abiding Dude ([email protected]) wrote:

Hi Chris, a number of Stack Overflow answers to Devise 
ActionDispatch::Cookies::CookieOverflow mentioned the 4k cookie limit problem 
with the recommended solution being to use a different store.

https://coderwall.com/p/dqdyig

At this point in testing I'm not storing anything else in session, the 4k limit 
seems to be exceeded when I login as a customer AND as admin using Devise. 
Logging into just 1 works perfectly fine, its the second login adding to the 
cookie that appears to cause the overflow.

I'm not using memcache at the moment and felt hitting the db may not be ideal 
for performance. Once you login with Devise with session stored in db, will it 
hit the db every time to verify access to a page or could that be handled by 
having just the user_id in a cookie session.

So on login store session info in db, set only the user_id in cookie session 
and use only that  value to enable access to various pages or sections.

I wired up auth from one of the wire it yourself railscasts, it works fine but 
not ideal for forgot password. Devise is powerful and pretty user friendly cept 
for this cookie overflow issue. I checked Sorcery v briefly yesterday but per 
your suggestion will revisit in more detail this afternoon. Thanks for the tip 
not to wire it myself.

On Sunday, April 6, 2014 9:10:25 AM UTC-7, Chris McCann wrote:
There are other options for authentication in Rails.  Depending on your needs, 
Sorcery is a fairly well-written, lighter weight alternative to Devise:

https://github.com/NoamB/sorcery

I, along with most other experienced Rails developers here, would strongly 
discourage writing your own authentication solution.  There's no need to 
reinvent something so critical to an app as authentication when there is 
battle-tested, community-vetted code already available.

The bigger question here, though, is why you're getting the cookie overflow 
error.  Does this Stack Overflow post describe your situation? 

http://stackoverflow.com/questions/7117200/devise-for-twitter-cookie-overflow-error

You should take a close look at what you're storing in the cookie-based 
session, in addition to what Devise is stashing there.  

If you find for some reason that you have to put more than 4k of data in the 
session then a database or memcached session store would certainly allow that.  
Is there a particular reason why neither of these session stores is an option?

Cheers,

Chris

On Sunday, April 6, 2014 1:25:49 AM UTC-7, Abiding Dude wrote:
Am building an ecommerce app and finding a problem with overflow on cookies if 
I have 2 models with Devise.

The suggested solution via stack overflow is to use the db to get around this 
issue which I'd rather not, or memcache.

Is there any other solution recommended for authentication? Or maybe write my 
own?

There's customer login, affiliate login and admin login. Neither will login on 
same browser at same time, but the overflow issue seems to be common in 
exceeding the 4k limit once you do 2 logins using cookies with Devise. Other 
than that its been a very user friendly and quite powerful gem. Thanks for any 
pointers.
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