SLAVE START and SLAVE STOP statements.
TYPE=QUICK option to CHECK and to REPAIR.
REPAIR TABLE when the table was in use by other threads.
gdb when one does a lot of reconnects. This will also improve
systems where you can't use persistent connections.
UPDATE IGNORE will not abort if an update results in a
DUPLICATE_KEY error.
CREATE TEMPORARY TABLE commands in the update log.
delay_key_write tables and CHECK TABLE.
replicate-do-db and replicate-ignore-db options to
mysqld, to restrict which databases get replicated.
SQL_LOG_BIN option.