I am getting "Done. This is used by JForum to ensure the session does not expire." when open multiple posts on separate tab (opening speed is fast).
i have checked in to log also but there is no any error message.
so i am trouble to trace this issue.
what happens if we not used ping_session.jsp in jforum code ?
While I'm not sure where you are seeing this message, or what "log" you were checking, I know what that page does: it is used in the background to ensure that the user session does not time out. Otherwise, whatever session timeout is set in web.xml would determine when a session times out. If that is OK for you, you can remove references to ping_session.jsp.