We have SGD 4.5 running on Solaris 10 on Intel platform. We have an issue with applications sessions disappear randomly. Sometimes it's in the middle of using it. Other time it's when a user logs back in. Could you suggest how to troubleshoot this problem? I've checked the logs but the messages are pretty useless. I have a hard time identifying which session is disappeared session owned by a particular user.
Enabling XPE logging should give you more information about whats happening, at the very least it will mean you can determine whether the XPE on the SGD server is crashing or the X applications. Details here: http://docs.oracle.com/cd/E19141-01/820-6689/chapter7.html#CJBHJJAF