Flash forward a decade and I still see seemingly random crashes and hangs. I still search through the logs but mostly there's nothing I can do. Maybe play with some thread settings or increase a cache here or there. I feel a bit powerless. I'm sure others of you are in a similar boat. I don't have much advice to share other than, keep on doing your due diligence. Check the logs, talk to users when applicable and open tickets with Oracle. I will say that the crashes and hangs are few and far between compared to the Essbase 6 and prior days.
Troubleshooting GuideThis brings me to a recently released Oracle document that helps guide you when you do experience a crash. It's available HERE on the Oracle Suport Website which does require a login.
One section in the document is about the rda.sh/rda.cmd script (Oracle Remote Diagnostics Agent) which will zip up a bunch of your server information for easy sending to Oracle Support.