Session timeout during a transaction

[deanouk]

Hi.

I've being seeing behaviour like this for a while on JBoss 4.2.x, but can't really understand it.

A user has been logged in for sometime, then performs a task which takes a longish period ot time (maybe several minutes). During this task, the user, for some reason, has their session timeout, even though they've just performed this recent task.

Due to a commit during the login process (recording the user's login datetime stamp) the transaction they were performing understandably fails with:

java.sql.SQLException: You cannot commit during a managed transaction!

Why is the user's session timing out in the first place?

Regards,

Dean.

[deanouk]

This issue is compounded by the following scenario:

User logs in
Uploads a file ~takes >10 mins
Uploads a file ~takes >10 mins
Uploads a file ~takes >10 mins

The session time-out is at 30 mins and the user's session is destroyed. But why, when they've been performing the above task during the session? Surely session time-out is based on idle time?

[deanouk]

It's also interesting to note, that although the user is being re-logged in (for some reason) there is no user interaction to do this - something underlying within the authentication mechanism(s) is doing this automatically...