for my project I need to enlarge the server timeout.
Is it possible to enlarge it, and where can I do this?
It's JBossWeb (Tomcat) server configuration file you're looking for.
the Tomcat timeout it was not.
Because of the message that the transaction is not active, I have increased
the transaction timeout in the file:
I don't know if I can have disadvantages with this setting.
The new value is 300000.
Yes, you need to configure the transaction timeout on the server as you did. Consider that value is in seconds, thus 300000 might be really too much. Perhaps you can better estimate the maximum tx length you might expect and set that value accordingly.
Also consider taking a look at the transaction project forum for this kind of issues.