Hi Jon,
I know that this document has been made for BOXI, so the solution is probably not the same and that's normal as these are two different softwares. But the problem still happens sometimes in JasperSoft and the only known solution on my side is to restart Jasperserver service.
As of now time has passed and the problem is not occuring so I don't have a screenshot. But everything that bugs is logged into ./jasperserver-pro/WEB-INF/logs/jasperserver.log
2017-12-04 11:31:49,023 ERROR errorPage_jsp,http-bio-8443-exec-2:612 - stack trace of exception that redirected to errorPage.jsp
com.jaspersoft.jasperserver.api.JSExceptionWrapper:
net.sf.jasperreports.engine.JRException: java.lang.RuntimeException: exception getting dataset from cache
Caused by: java.sql.SQLException: [DataDirect][OpenAccess SDK JDBC Driver][OpenAccess SDK SQL Engine]AHD12033:Impossible de traiter la demande : votre session a expiré à 2017/12/04 10:17 après 60 minutes d'inactivité.
Next time that this happens I'll post the screenshot here. If I find a solution I will post it here too as I'm sure I would not be the only one having this problem.
I also got this problem a while ago when using JasperSoft studio.
What I think is that this happens when I log to Jasperserver (or JasperStudio), run queries (ad-hob, reports,etc) and then leave the system so the Jasper session timeout happens and then log back into the system. But that does not happen all the time.
Maybe I need to setup Jasperserver session timeout to 60 minutes so that it could match SDM?