http://planet.mysql.com/entry/?id=20450
- mysql> show variables like ‘log_slave_updates‘;
- +-------------------+-------+
- | Variable_name | Value |
- +-------------------+-------+
- | log_slave_updates | OFF |
- +-------------------+-------+
- 1 row in set (0.00 sec)
-
- mysql> set global log_slave_updates=1;
- ERROR 1238 (HY000): Variable ‘log_slave_updates‘ is a read only variable
- mysql> system gdb -p $(pidof mysqld) -ex "set opt_log_slave_updates=1" -batch
- mysql> show variables like ‘log_slave_updates‘;
- +-------------------+-------+
- | Variable_name | Value |
- +-------------------+-------+
- | log_slave_updates | ON |
- +-------------------+-------+
log_slave_updates在线修改
原文：http://www.cnblogs.com/zengkefu/p/5654842.html
