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Is a session ID from 2 separate JVMs unique?

 
Greenhorn
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I'm trying to record some session based data into a database. I want to use the sessionID , but am not sure how unique it is. The data being recorded belongs to 2 application, each executes in its own JVM, possibly a different physical server .
So, is the HTTPSession ID universally unique?

Thanks!
 
Ranch Hand
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Different JVMs may have generate different Session IDs.
 
Sheriff
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But I would not bet the farm on it. Rather than relying on the ession ID, you'd be better off assigning a known unique value to each session to use as a database key, perhaps generated from a DB seuqence.
 
Carmi Gazit
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yes, I was going in that direction (using a DB generated key), and wanted to make sure it was the right approach.

Thanks for the replies!
 
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