Я получаю следующую ошибку:
2055: Lost connection to MySQL server at 'localhost:3306', system error: 104 Connection reset by peer
Traceback (most recent call last):
File "script.py", line 183, in <module>
p1 = MyScript()
File "script.py", line 77, in _init_
if connection_object.is_connected():
File "/usr/local/lib/python3.7/dist-packages/mysql/connector/pooling.py", line 103, in _getattr_
return getattr(self._cnx, attr)
AttributeError: 'NoneType' object has no attribute 'is_connected
Мой код:
def init_db_pool(self):
self.connection_pool = mysql.connector.pooling.MySQLConnectionPool(pool_name="db_pool",
pool_size=self.cputhreads * 2,
pool_reset_session=True,
host=self.db['host'],
database=self.db['carsdatabase'],
user=self.db['userdb'],
password=self.db['passwddb'])
def __init__(self):
threads = []
self.cputhreads = os.cpu_count()
if self.cputhreads < 4:
self.cputhreads = 4
try:
self.init_db_pool()
connection_object = self.connection_pool.get_connection()
if connection_object.is_connected():
records_count_sql = "Select count(*) from " + self.db['table']
cursor = connection_object.cursor()
cursor.execute(records_count_sql)
record = cursor.fetchone()
record_totals = record[0]
records_chunks = int(record_totals / self.cputhreads)
cursor.close()
connection_object.close()
for i in range(self.cputhreads):
threads.append(Thread(target=self.is_available, args=(i, self.connection_pool, records_chunks)))
for thread in threads:
thread.start()
for thread in threads:
thread.join()
else:
print('Not connected to DB')
except Error as e:
print("Error while connecting to MySQL using Connection pool ", e) if self.debug else False
finally:
# closing database connection.
if connection_object.is_connected():
connection_object.close()
Исключение возникает потому, что последнее, если connection_object не является классом, но кажется, что основная проблема что я потерял связь с БД.
Есть идеи, почему это происходит?
Чем