Re: is session id unique across webapps ?

[Tim Funk]

Tomcat creates its sessionids from a random number generator. The breadth of 
random numbers is very wide allowing for "virtually" no overlaps. But since 
they are random, dups may appear. Tomcat does have checks to make sure it 
doesn't give out an existing session id in a particular webapp.

That being said, I think it is possible that the same session_id may be used 
by two different users for two different webapps.

So if you really need a unique identifier, append session_id to context path.

There was a few discussions in developers list above session id uniqueness.

http://marc.theaimsgroup.com/?t=104072145900001&r=1&w=2
http://marc.theaimsgroup.com/?t=104207956000003&r=1&w=2
-Tim

siddharth wrote:
Hi all,

I am tring to find out about *uniqueness* of *session ids*  which are 
generated by tomcat.

are session ids are unique across webapps ???
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thanx.



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