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From Igor Chudov <>
Subject Re: Ways to scale a mod_perl site
Date Wed, 16 Sep 2009 17:24:02 GMT
Guys, I completely love this discussion about cookies. You have really
enlightened me.

I think that letting users store cookie info in a manner that is secure
(involves both encryption and some form of authentication), instead of
storing them in a table, could possibly result in a very substantial
reduction of database use.

The cookie is

1) Encrypted string that I want and
2) MD5 of that string with a secret code appended that the users do not
know, which serves as a form of signing

That should work. I will not change it now, but will do if I get 2x more

That way I would need zero hits to the database to handle my users sessions.

(I only retrieve account information when necessary)

As far as I remember now, I do not store much more information in a session
beyond username. (I hope that I am not wrong). So it should be easy.

Even now, I make sure that I reset the cookie table only every several
months. This way I would let users stay logged on forever.

Thanks a lot.


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