The OpenACS service instance on my server died quite frequently for months. I have to write a bash script, monitor the service and restart it everytime it dies. My script will also record the last few lines of AOLserver's error_log and access_log so that I can track the error.
It seems taht the service dies quite frequently with Googlebot visit. I blocked Googlebot (yes, thats crazy) for a few months and the down time reduces dramatically. I still get down times. I examine those logs and found that seems Mozilla 4.0 or things based on that (like Googlebot) would sometimes kill OpenACS service instance.
I'm not sure if anyone got the same situation. May be it is because of badly written code or something else. I'm not sure what to look at. Please tell me what to do.