MySQL 查看binlog日志方法
mysqlbinlog
mysqlbinlog --no-defaults --base64-output=decode-rows -v /var/lib/mysql/mysql-bin.000004BEGIN
/*!*/;
# at 203
# at 235
#190630 10:40:51 server id 2 end_log_pos 235 CRC32 0x8ef8ae9c Intvar
SET INSERT_ID=2/*!*/;
#190630 10:40:51 server id 2 end_log_pos 363 CRC32 0x5deda9b3 Query thread_id=2 exec_time=0 error_code=0
use `school`/*!*/;
SET TIMESTAMP=1561862451/*!*/;
insert into student (name,age) values ('alice',22)
/*!*/;
# at 363
#190630 10:40:51 server id 2 end_log_pos 394 CRC32 0xfe84554c Xid = 37
COMMIT/*!*/;日志转文本文件
mysqlbinlog /var/lib/mysql/mysql-bin.000004 > /var/lib/mysql/4.txt #日志转txt
恢复指定日志文件到指定数据库
mysqlbinlog /var/lib/mysql/mysql-bin.000004 | mysql -uroot -p123456 school恢复指定日志中的 开始位置 start-pos 至 结束位置 stop-pos 的日志记录到指定数据库
1、查看位置
/*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/;
SET @@SESSION.GTID_NEXT= 'ANONYMOUS'/*!*/;
# at 16624
#190805 23:43:56 server id 108 end_log_pos 16698 CRC32 0xd526b54c Query thread_id=8 exec_time=0 error_code=0
SET TIMESTAMP=1565019836/*!*/;
BEGIN
/*!*/;
# at 16698
#190805 23:43:56 server id 108 end_log_pos 16754 CRC32 0x0912126d Table_map: `school`.`student` mapped to number 109
# at 16754
#190805 23:43:56 server id 108 end_log_pos 16804 CRC32 0x91fd6625 Write_rows: table id 109 flags: STMT_END_F
### INSERT INTO `school`.`student`
### SET
### @1=56
### @2='tom56'
### @3=56
# at 16804
#190805 23:43:56 server id 108 end_log_pos 16835 CRC32 0x64dafa52 Xid = 219
COMMIT/*!*/;
# at 16835
#190805 23:43:56 server id 108 end_log_pos 16900 CRC32 0x2a0af842 Anonymous_GTID last_committed=61 sequence_number=62 rbr_only=yes
mysql> show binlog events in 'mysql-bin.000003' from 16624 limit 5\G;
*************************** 1. row ***************************
Log_name: mysql-bin.000003
Pos: 16624
Event_type: Query
Server_id: 108
End_log_pos: 16698
Info: BEGIN
*************************** 2. row ***************************
Log_name: mysql-bin.000003
Pos: 16698
Event_type: Table_map
Server_id: 108
End_log_pos: 16754
Info: table_id: 109 (school.student)
*************************** 3. row ***************************
Log_name: mysql-bin.000003
Pos: 16754
Event_type: Write_rows
Server_id: 108
End_log_pos: 16804
Info: table_id: 109 flags: STMT_END_F
*************************** 4. row ***************************
Log_name: mysql-bin.000003
Pos: 16804
Event_type: Xid
Server_id: 108
End_log_pos: 16835
Info: COMMIT /* xid=219 */
*************************** 5. row ***************************
Log_name: mysql-bin.000003
Pos: 16835
Event_type: Anonymous_Gtid
Server_id: 108
End_log_pos: 16900
Info: SET @@SESSION.GTID_NEXT= 'ANONYMOUS'
2、开始恢复
#根据position
mysqlbinlog /var/lib/mysql/mysql-bin.000006 --start-position=16624 --stop-position=16900 | mysql -uroot -p123456 school
#根据datetime
mysqlbinlog /var/lib/mysql/mysql-bin.000006 --start-datetime='2019-10-07 10:00:00' --stop-datetime='2019-10-07 10:30:00' | mysql -uroot -p123456 schoolshow binlog events
查询第一个(最早)的binlog日志
mysql> show binlog events\G; 指定查询 mysql-bin.000021这个文件
mysql> show binlog events in 'mysql-bin.000021'\G; 指定查询 mysql-bin.000021 这个文件，从pos点8224开始查起：
mysql> show binlog events in 'mysql-bin.000021' from 8224\G;指定查询 mysql-bin.000021 这个文件，从pos点8224开始查起，查询10条
mysql> show binlog events in 'mysql-bin.000021' from 8224 limit 10\G;指定查询 mysql-bin.000021 这个文件，从pos点8224开始查起，偏移2行，查询10条
mysql> show binlog events in 'mysql-bin.000021' from 8224 limit 2,10\G;显示的结果
*************************** 1. row ***************************
Log_name: mysql-bin.000015 #查询的binlog日志文件名
Pos: 4 #pos起始点:
Event_type: Query #事件类型：Query
Server_id: 6 #标识是由哪台服务器执行的
End_log_pos: 123 #pos结束点:123(即：下行的pos起始点)
Info: SET @@SESSION.GTID_NEXT= 'ANONYMOUS' #执行的sql语句
*************************** 2. row ***************************
Log_name: mysql-bin.000015
Pos: 123
Event_type: Previous_gtids
Server_id: 6
End_log_pos: 154
Info:
*************************** 3. row ***************************
Log_name: mysql-bin.000015
Pos: 154
Event_type: Anonymous_Gtid
Server_id: 6
End_log_pos: 219
Info: SET @@SESSION.GTID_NEXT= 'ANONYMOUS'