innodb存储引擎监控

     innodb存储引擎监控分为四种,表监控,表空间监控,锁监控,状态监控.可以在mysql客户端开启监控选项,然后信息将会输出在mysql的错误日志内.innodb_monitor和innodb_lock_monitor会每隔15秒会向错误日志中记录InnoDB监控信息,innodb_table_monitor和innodb_tablespace_monitor是每隔64秒.

1.对innodb状态监控

create table innodb_monitor (a int) engine=innodb;   –开启监控

drop table innodb_monitor;          –关闭监控

2.对innodb锁监控

create table innodb_lock_monitor (a int) engine=innodb;   –开启监控

drop table innodb_lock_monitor;      –关闭监控

3.对innodb的表监控

create table innodb_table_monitor(a int) engine=innodb;    –开启监控

drop tables innodb_table_monitor;     –关闭监控

4.对innodb表空间监控

create table innodb_tablespace_monitor (a int) engine=innodb;   –开启监控

drop table innodb_tablespace_monitor;        –关闭监控