Python: MySQL: Handling timeouts

Question

I am using Python and mySQL, and there is a long lag between queries. As a result, I get an \'MySQL connection has gone away\' error, that is wait_timeout is exceeded.

Answer 1

I tried Crasched's approach, which got me to a new OperationalError:

OperationalError: (2013, 'Lost connection to MySQL server during query')

My final solution was to first try the ping, and if another OperationalError was raised, to reconnect and recreate the cursor with the new connection, like so:

try:
    self.connection.ping(True)
except MySQLdb.OperationalError:
    self.connection = MySQLdb.connect(
        self.db_host,
        self.db_user,
        self.db_passwd,
        self.db_dbase,
        self.db_port)
    # reconnect your cursor as you did in __init__ or wherever    
    self.cursor = self.connection(
        MySQLdb.cursors.DictCursor)

Back in business!

Python 2.7, MySQL 5.5.41