Python mysql (using pymysql) auto reconnect

Question

I\'m not sure if this is possible, but I\'m looking for a way to reconnect to mysql database when the connection is lost. All the connections are held in a gevent queue but that

Answer 1

the logic is quite simple, if connection close then try to reconnect for several times in this case I use max tries for 15 times to reconnect or ping.

import pymysql, pymysql.cursors
conn = pymysql.connect(
                         host=hostname,
                         user=username,
                         password=password,
                         db=dbname,
                         charset='utf8mb4',
                         cursorclass=pymysql.cursors.DictCursor,
                         )
cursor = conn.cursor()
# you can do transactions to database and when you need conn later, just make sure the server is still connected
if conn.open is False:
   max_try = 15
   try = 0
   while conn.open is False:
       if try < max_try:
           conn.ping() # autoreconnect is true by default
       try +=1

# check the conn again to make sure it connected
if conn.open:
    # statements when conn is successfully reconnect to the server
else:
    # it must be something wrong : server, network etc