We've had CF10 running for months now with very few problems. This Tuesday i start to hear of the CF instance crashing in the mornings. I restart service and it runs again for the day. Wednesday it is crashed again, so i restart service twice before it will start working. Thursday the service is dead again. all my efforts to restart service or reboot server only allow it to work for minutes at a time. it starts working fast as normal, then slows, then really lags, then Time Out errors from queries and then crashes the CF instance again. on and off like this all day and still today.
I try tweaking some CF Admin settings but nothing seems to give a lasting help. Server seems to be running just fine (Windows server running IIS). I can get general HTML pages to work continually even during worst behavior of CF. I checked my SQL server as well and it is running fine, no strange or overwhelming queries. I rerouted traffic to the staging server instead of the Live Prod server and after a few minutes that server goes down too. It acts almost like a slow memory leak, but server monitoring on CF Admin shows steady memory usage, no dramatic increases.
I am not a super knowledgeable server admin guy, mainly I'm a CF coder, but I am tasked with keeping this server running.
How do I troubleshoot this?
What should i be looking for?
Any ideas what would cause this behavior and just suddenly start doing this now?
Thanks for any input in advance.