Session conflict with servers on the same IP and different ports

When I run servlet on localhost HttpSession.getId() returns id = A

Then I run servlet on localhost:8080 I got a new session B

Then I go back to run servlet on localhost I got a new session C!

Then I go back to run servlet on localhost:8080 I got a new session D!

The sessions seem to step on each other. Why?

Hi, Bruce.

Have you disabled cookies on the browser side?

Hi,

Are you running your web server in two ports (80 and 8080) ? It seems you are calling urls on two ports.

Can you explain the way you are using these two ports?

Cheers,
Kamal

Those are all different domains as far as cookies are concerned. And as cookies goes, so goes the session.

I have 1 Tomcat on port 80 and another on port 8080.

if those are all different domains as far as cookies are concerned, why session on domain bumps session on another domain?

Hi, Bruce.

if those are all different domains as far as cookies are concerned, why session on domain bumps session on another domain?

I am guessing, I have not tried this.
Session id's are created randomly. Container creates one 'session id' for one domain and another 'session id' for another domain.

ssion id's are created randomly. Container creates one 'session id' for one domain and another 'session id' for another domain.

That's what I thought. The confusion thing is that

When I run servlet on localhost I got a session A

Then I run servlet on localhost:8080 I got a new session B

Then I go back to run servlet on localhost I got a new session C! (session A disappeared!)

Then I go back to run servlet on localhost:8080 I got a new session D! session B disappeared!)

Basically when I go to one of the URLs the session Id in another Url is invalidated.

I am using Tomcat in both ports 80 and 8080.
I am not sure if this happens in other server too.