In my recent use and experimentation with Grafana over the last year or so, I find that if Grafana has been running for a while, it sometimes becomes unresponsive -- an attempt to connect to the Grafana URL will simply timeout.
If I select Plugins>Grafana Home Dashboard>Rebuild and Restart Grafana Server (Will not delete data), then everything seems to go back to normal after 10-15 seconds.
I have maybe 10-15 dashboards defined. I am not yet using alerting features of Grafana. Anyone else seeing Grafana die after being left running for a while? Any suggestion of what I can do to prevent it from happening? Any better way to fix it other than restarting Grafana? Is there any "harm" in restarting Grafana other than just the inconvenience of having to notice it not working and then perform the restart? The worst thing I've observed is if I make some tweaks to a dashboard design, and then leave it running but unsaved for a while and come back to it, there is a chance when I'll lose my changes I've made by needing to restart.