Traceback (most recent call last): File "/data/www/zhaos/app.py", line 2536, in get cur.execute("select qhid,qhname,'',mobile,qq,qhupid,domain from qh left join adminuser on qh.qhid = adminuser.classid where domain = '"+ qhid +"' limit 1") File "/usr/lib64/python2.7/site-packages/MySQLdb/cursors.py", line 205, in execute self.errorhandler(self, exc, value) File "/usr/lib64/python2.7/site-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler raise errorclass, errorvalue OperationalError: (2006, 'MySQL server has gone away')