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fix 数据库连接超时断开导致的'Lost connection to MySQL server during query'报错 #2

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fix 数据库连接超时断开导致的'Lost connection to MySQL server during query'报错 #2

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19 changes: 18 additions & 1 deletion core/util/database.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,23 @@

from hoshino import logger

class RetryOperationalError(object):
def execute_sql(self, sql, params=None, commit=True):
try:
cursor = super(RetryOperationalError, self).execute_sql(
sql, params, commit)
except peewee.OperationalError:
if not self.is_closed():
self.close()
with peewee.__exception_wrapper__:
cursor = self.cursor()
cursor.execute(sql, params or ())
if commit and not self.in_transaction():
self.commit()
return cursor
class RetryMySQLDatabase(RetryOperationalError, peewee.MySQLDatabase):
pass

try:
from hoshino.config.__bot__ import (MySQL_host, MySQL_password, MySQL_port,
MySQL_username)
Expand All @@ -25,7 +42,7 @@

def database(class_name):
return \
peewee.MySQLDatabase(
RetryMySQLDatabase(
host=MySQL_host,
port=MySQL_port,
user=MySQL_username,
Expand Down