Monitoring and restarting Derby
A terminal window It’s a crude but working hack; I’ve been spinning a similar script since the mid-90s (then monitoring the PPP connection that kept an entire dorm connected, very slowly, to the Internet). Bash script . Every hour (run via cron) it just checks the process list to see if the Derby instance is up and, if not, spawns a new screen session with the Derby instance running in the background. (Every hour is fine for this application, which only hits the database periodically. I’d tweak it to run in a constant loop if the Derby instance was more critical. I’d also question why I was running something critical on Derby in such a context, too.