As it's the end of the year it might be time to check your
partition definitions.
If you forget to add a new partition in time partitions with no
MAXVALUE might start to throw errors:
mysql> create table nye (`event_id` int not null auto_increment,`edate` year(4) not null, description varchar(200),
-> primary key(`event_id`,`edate`))
-> partition by range( edate ) (
-> partition p2010 VALUES LESS THAN (2011),
-> partition p2011 VALUES LESS THAN (2012),
-> partition p2012 VALUES LESS THAN (2013) );
Query OK, 0 rows affected (0.04 sec)
mysql> INSERT INTO nye(edate,description) VALUES('2010','twenty ten');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO nye(edate,description) VALUES('2011','twenty eleven');
Query OK, 1 row affected (0.00 sec)[Read more]
mysql> INSERT INTO …