def meter_get(redis_pool, conn_pool, delay):
while True:
try:
time.sleep(delay)
client = redis.Redis(connection_pool=redis_pool)
result = client.blpop("meter_get", 60)
if not result:
continue
res_id = result[1].decode('utf-8')
conn = conn_pool.connection()
Meter.load_from_db(res_id, client, conn)
except redis.exceptions.ConnectionError as err:
print("redis connection error.", err)
except pymssql.Error as err:
print("mssql error.", err)
except:
print("other except.")
