Error Counter: Count error (e.g. network error) beyond process boundary, then issue fix command when exceeded threshold.
import requests
from error_counter import Counter
# reboot system when error accumulate 3 times in a low
network_error_counter = Counter("/tmp/network_error.txt")
try:
r = requests.post(somowhere, somewhat)
except requests.ConnectionError as e:
network_error_counter.inc_error()
if not r is None:
# send succeeded.
network_error_counter.reset_error()
class Counter:
def __init__(self, counterfile, reset_task="sudo reboot", reset_threshold=3):
# counterfile: file name to use counter. The file is owned jointly by sevelal Counter beyond process boundary.
# reset_task: shell command which is issued when error count is over the threshold.
# reset_threshold: Threshold for reset_task.
def inc_error(self):
# Increment error count then issue reset_task if count is over threshold
def dec_error(self):
# Decrement error count as 0
def reset_error(self):
# Reset error count as 0
- 0.1.0 2018.11.18 first version