MySQL的binlog日志位置可通过show variables like '%datadir%';查看，直接打开无法查看，要看其内容2个办法：
1、登录到mysql查看binlog
只查看第一个binlog文件的内容
mysql> show binlog events;
查看指定binlog文件的内容
mysql> show binlog events in 'mysql-bin.000002';
mysql> show binlog events in 'mysql-bin.000001';
+------------------+------+-------------+-----------+-------------+-----------------------------------------------------------+
| Log_name | Pos | Event_type | Server_id | End_log_pos | Info |
+------------------+------+-------------+-----------+-------------+-----------------------------------------------------------+
| mysql-bin.000001 | 4 | Format_desc | 195 | 106 | Server ver: 5.1.73-log, Binlog ver: 4 |
| mysql-bin.000001 | 106 | Query | 195 | 198 | use `Hadoop`; delete from user where id=3 |
| mysql-bin.000001 | 198 | Intvar | 195 | 226 | INSERT_ID=4 |
| mysql-bin.000001 | 226 | Query | 195 | 332 | use `hadoop`; INSERT INTO user (id,name)VALUES (NULL,1) |
| mysql-bin.000001 | 332 | Query | 195 | 424 | use `hadoop`; delete from user where id=3 |
| mysql-bin.000001 | 424 | Intvar | 195 | 452 | INSERT_ID=5 |
| mysql-bin.000001 | 452 | Query | 195 | 560 | use `hadoop`; INSERT INTO user (id,name)VALUES (NULL,222) |
| mysql-bin.000001 | 560 | Query | 195 | 660 | use `hadoop`; DELETE FROM `user` WHERE (`id`='1') |
| mysql-bin.000001 | 660 | Intvar | 195 | 688 | INSERT_ID=6 |
| mysql-bin.000001 | 688 | Query | 195 | 795 | use `hadoop`; INSERT INTO `user` (`name`) VALUES ('555') |
| mysql-bin.000001 | 795 | Intvar | 195 | 823 | INSERT_ID=7 |
| mysql-bin.000001 | 823 | Query | 195 | 930 | use `hadoop`; INSERT INTO `user` (`name`) VALUES ('555') |
| mysql-bin.000001 | 930 | Intvar | 195 | 958 | INSERT_ID=8 |
| mysql-bin.000001 | 958 | Query | 195 | 1065 | use `hadoop`; INSERT INTO `user` (`name`) VALUES ('555') |
| mysql-bin.000001 | 1065 | Intvar | 195 | 1093 | INSERT_ID=9 |
| mysql-bin.000001 | 1093 | Query | 195 | 1200 | use `hadoop`; INSERT INTO `user` (`name`) VALUES ('555') |
| mysql-bin.000001 | 1200 | Query | 195 | 1300 | use `hadoop`; DELETE FROM `user` WHERE (`id`='9') |
| mysql-bin.000001 | 1300 | Query | 195 | 1400 | use `hadoop`; DELETE FROM `user` WHERE (`id`='8') |
| mysql-bin.000001 | 1400 | Query | 195 | 1500 | use `hadoop`; DELETE FROM `user` WHERE (`id`='7') |
| mysql-bin.000001 | 1500 | Query | 195 | 1600 | use `hadoop`; DELETE FROM `user` WHERE (`id`='4') |
| mysql-bin.000001 | 1600 | Query | 195 | 1700 | use `hadoop`; DELETE FROM `user` WHERE (`id`='5') |
| mysql-bin.000001 | 1700 | Query | 195 | 1800 | use `hadoop`; DELETE FROM `user` WHERE (`id`='6') |
| mysql-bin.000001 | 1800 | Intvar | 195 | 1828 | INSERT_ID=10 |
| mysql-bin.000001 | 1828 | Query | 195 | 1935 | use `hadoop`; INSERT INTO `user` (`name`) VALUES ('555') |
| mysql-bin.000001 | 1935 | Intvar | 195 | 1963 | INSERT_ID=11 |
| mysql-bin.000001 | 1963 | Query | 195 | 2070 | use `hadoop`; INSERT INTO `user` (`name`) VALUES ('666') |
| mysql-bin.000001 | 2070 | Intvar | 195 | 2098 | INSERT_ID=12 |
| mysql-bin.000001 | 2098 | Query | 195 | 2205 | use `hadoop`; INSERT INTO `user` (`name`) VALUES ('777') |
+------------------+------+-------------+-----------+-------------+-----------------------------------------------------------+
查看当前正在写入的binlog文件
mysql> show master status\G