# Node is unpaired.
# If it hasn't pinged Arvados after boot_fail seconds, shut it down
return not timestamp_fresh(self.cloud_node_start_time, self.boot_fail_after)
# Node is unpaired.
# If it hasn't pinged Arvados after boot_fail seconds, shut it down
return not timestamp_fresh(self.cloud_node_start_time, self.boot_fail_after)