Yesterday I shut down my pmm server, today I open that VM and shows the error message.
Finally, I found its Prometheus API down, then I checked the log.
service prometheus status -l
I found that it seems I don’t shut down the server in right way, and the database running recovery.
For a while, the dashboard is ok again (maybe 20 mins later).
I would like to ask how to shut down the whole system in right way?
Should I stop all the client servers to push data to pmm server? what kind of commands should I use?