Our system verifies regularly that your instance is up and running by probing to a certain path (/ by default) every N seconds. When it detects that it's no more responding, it will respawn an instance and destroy the old one automatically.
You can change these settings using the administration dashboard in Settings > Misc.
You can change the default value for the status probe path by using the following command:
openode set-config STATUS_PROBE_PATH <path>
where path can be for example /status.
You can also change the interval (in seconds) at which the probe is executed
openode set-config STATUS_PROBE_PERIOD <interval>