==----------------------------------------------------------------------------------------------------------------------
-----==Linux 简单的mysql的bin-log来实现数据恢复
前提：必须开启bin-log日志，至于如何开启，网上有帖子可自行查看！
1、授权从机
grant all on *.* to [email protected] identified by "slave121"
2、查询授权
select Host, User, Password from mysql.user
mysql> select Host, User, Password from mysql.user
-> ;
+-------------------------+-------+-------------------------------------------+
| Host | User | Password |
+-------------------------+-------+-------------------------------------------+
| localhost | root | |
| izm5eizpokikoertia0x31z | root | |
| 127.0.0.1 | root | |
| ::1 | root | |
| localhost | | |
| izm5eizpokikoertia0x31z | | |
| localhost | LDR | *0F20228F92B4C2607708E1083957B11DC1E3AF0A |
| % | root | *C0C54EB873E6B870D86CC3C56EDA4F59D3737954 |
| 39.100.51.121 | slave | *E34DCEEB1AE97C93158E6CFBB4C680000479E6D7 |
+-------------------------+-------+-------------------------------------------+
9 rows in set (0.00 sec)
3、刷新bin-log日志 （新增新的，与旧的分离）
-- 刷新前
-rw-rw---- 1 mysql mysql 269766957 Jul 4 19:04 mysql-bin.000028
-rw-rw---- 1 mysql mysql 107 Jul 9 11:25 mysql-bin.000029
-rw-rw---- 1 mysql mysql 107 Jul 9 11:36 mysql-bin.000030
-rw-rw---- 1 mysql mysql 107 Jul 9 12:18 mysql-bin.000031
-rw-rw---- 1 mysql mysql 107 Jul 9 12:37 mysql-bin.000032
-rw-rw---- 1 mysql mysql 107 Jul 9 14:04 mysql-bin.000033
-rw-rw---- 1 mysql mysql 126 Jul 12 11:59 mysql-bin.000034
-rw-rw---- 1 mysql mysql 126 Jul 12 13:21 mysql-bin.000035
-rw-rw---- 1 mysql mysql 126 Jul 12 13:36 mysql-bin.000036
-rw-rw---- 1 mysql mysql 3729 Jul 12 15:53 mysql-bin.000037
-rw-rw---- 1 mysql mysql 107 Jul 12 15:53 mysql-bin.000038
-rw-rw---- 1 mysql mysql 722 Jul 12 15:53 mysql-bin.index
drwx------ 2 mysql mysql 4096 Jul 12 15:38 newdata
-- 刷新
flush logs;
-- 刷新后
-rw-rw---- 1 mysql mysql 269766957 Jul 4 19:04 mysql-bin.000028
-rw-rw---- 1 mysql mysql 107 Jul 9 11:25 mysql-bin.000029
-rw-rw---- 1 mysql mysql 107 Jul 9 11:36 mysql-bin.000030
-rw-rw---- 1 mysql mysql 107 Jul 9 12:18 mysql-bin.000031
-rw-rw---- 1 mysql mysql 107 Jul 9 12:37 mysql-bin.000032
-rw-rw---- 1 mysql mysql 107 Jul 9 14:04 mysql-bin.000033
-rw-rw---- 1 mysql mysql 126 Jul 12 11:59 mysql-bin.000034
-rw-rw---- 1 mysql mysql 126 Jul 12 13:21 mysql-bin.000035
-rw-rw---- 1 mysql mysql 126 Jul 12 13:36 mysql-bin.000036
-rw-rw---- 1 mysql mysql 3729 Jul 12 15:53 mysql-bin.000037
-rw-rw---- 1 mysql mysql 150 Jul 12 15:54 mysql-bin.000038
-rw-rw---- 1 mysql mysql 107 Jul 12 15:54 mysql-bin.000039 【新增】
-rw-rw---- 1 mysql mysql 741 Jul 12 15:54 mysql-bin.index
drwx------ 2 mysql mysql 4096 Jul 12 15:38 newdata
4、文件太多，清理一下
-- 清理：reset master;
root@iZm5eizpokikoertia0x31Z data]# ll
total 413772
-rw-rw---- 1 mysql mysql 413138944 Jul 12 15:53 ibdata1
-rw-rw---- 1 mysql mysql 5242880 Jul 12 15:53 ib_logfile0
-rw-rw---- 1 mysql mysql 5242880 Jul 12 15:53 ib_logfile1
-rw-r----- 1 mysql root 40056 Jun 19 18:53 iZm5eizpokikoertia0x31Z.err
drwx------ 4 mysql root 4096 Jul 12 13:36 mysql
-rw-rw---- 1 mysql mysql 107 Jul 12 15:54 mysql-bin.000001 【仅剩】
-rw-rw---- 1 mysql mysql 19 Jul 12 15:54 mysql-bin.index
drwx------ 2 mysql mysql 4096 Jul 12 15:38 newdata
drwx------ 2 mysql mysql 4096 Jun 21 15:39 performance_schema
drwx------ 2 mysql mysql 4096 Jun 17 17:05 sdkdata
drwxr-xr-x 2 mysql mysql 4096 Jun 17 16:18 test
[root@iZm5eizpokikoertia0x31Z data]#
5、创建测试库、表
mysql> use newdata;
Database changed
mysql> set names utf8mb4;
Query OK, 0 rows affected (0.00 sec)
mysql> CREATE TABLE `specialty` (
-> `specialtyid` int(11) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键id',
-> `specialty_name` varchar(50) NOT NULL COMMENT '特长名称',
-> `type` tinyint(1) unsigned NOT NULL DEFAULT '2' COMMENT '1 配置 2 自定义',
-> `user_id` int(11) unsigned NOT NULL DEFAULT '0' COMMENT '用户id',
-> `coach_id` int(11) unsigned NOT NULL DEFAULT '0' COMMENT '教练id',
-> `createtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '创建时间',
-> PRIMARY KEY (`specialtyid`)
-> ) ENGINE=InnoDB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8mb4 COMMENT='特长表';
Query OK, 0 rows affected (0.01 sec)
mysql> show tables;
+-------------------+
| Tables_in_newdata |
+-------------------+
| specialty |
+-------------------+
1 row in set (0.00 sec)
mysql> insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('跑步1','1','23','1000',now());
Query OK, 1 row affected (0.01 sec)
mysql> insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('读书1','1','24','1000',now());
Query OK, 1 row affected (0.00 sec)
mysql> insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('写字1','1','25','1000',now());
Query OK, 1 row affected (0.01 sec)
mysql> insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('画画1','1','26','1000',now());
Query OK, 1 row affected (0.02 sec)
mysql> insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('跳舞1','1','27','1000',now());
Query OK, 1 row affected (0.01 sec)
mysql> select * from specialty;
+-------------+----------------+------+---------+----------+---------------------+
| specialtyid | specialty_name | type | user_id | coach_id | createtime |
+-------------+----------------+------+---------+----------+---------------------+
| 1 | 跑步1 | 1 | 23 | 1000 | 2019-07-12 17:15:42 |
| 2 | 读书1 | 1 | 24 | 1000 | 2019-07-12 17:15:42 |
| 3 | 写字1 | 1 | 25 | 1000 | 2019-07-12 17:15:42 |
| 4 | 画画1 | 1 | 26 | 1000 | 2019-07-12 17:15:42 |
| 5 | 跳舞1 | 1 | 27 | 1000 | 2019-07-12 17:15:47 |
+-------------+----------------+------+---------+----------+---------------------+
5 rows in set (0.00 sec)
6、查看bin-log日志的记录位置
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000002 | 1717 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
mysql> update specialty set coach_id = 10001 where specialtyid = 1;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> update specialty set coach_id = 10002 where specialtyid = 2;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> update specialty set coach_id = 10003 where specialtyid = 3;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> update specialty set coach_id = 10004 where specialtyid = 4;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> update specialty set coach_id = 10005 where specialtyid = 5;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000002 | 2832 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
7、我们查看一下bin-log日志
/mine/serve/mysql/bin/mysqlbinlog mysql-bin.000002
[root@iZm5eizpokikoertia0x31Z data]# /mine/serve/mysql/bin/mysqlbinlog mysql-bin.000002
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#190712 17:14:55 server id 1 end_log_pos 107 Start: binlog v 4, server v 5.5.49-log created 190712 17:14:55
# Warning: this binlog is either in use or was not closed properly.
BINLOG '
j08oXQ8BAAAAZwAAAGsAAAABAAQANS41LjQ5LWxvZwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAEzgNAAgAEgAEBAQEEgAAVAAEGggAAAAICAgCAA==
'/*!*/;
# at 107
#190712 17:15:42 server id 1 end_log_pos 186 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562922942/*!*/;
SET @@session.pseudo_thread_id=2/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
SET @@session.sql_mode=0/*!*/;
SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
/*!\C utf8mb4 *//*!*/;
SET @@session.character_set_client=45,@@session.collation_connection=45,@@session.collation_server=33/*!*/;
SET @@session.time_zone='SYSTEM'/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
# at 186
#190712 17:15:42 server id 1 end_log_pos 214 Intvar
SET INSERT_ID=1/*!*/;
# at 214
#190712 17:15:42 server id 1 end_log_pos 402 Query thread_id=2 exec_time=0 error_code=0
use `newdata`/*!*/;
SET TIMESTAMP=1562922942/*!*/;
insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('跑步1','1','23','1000',now())
/*!*/;
# at 402
#190712 17:15:42 server id 1 end_log_pos 429 Xid = 2864
COMMIT/*!*/;
# at 429
#190712 17:15:42 server id 1 end_log_pos 508 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562922942/*!*/;
BEGIN
/*!*/;
# at 508
#190712 17:15:42 server id 1 end_log_pos 536 Intvar
SET INSERT_ID=2/*!*/;
# at 536
#190712 17:15:42 server id 1 end_log_pos 724 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562922942/*!*/;
insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('读书1','1','24','1000',now())
/*!*/;
# at 724
#190712 17:15:42 server id 1 end_log_pos 751 Xid = 2865
COMMIT/*!*/;
# at 751
#190712 17:15:42 server id 1 end_log_pos 830 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562922942/*!*/;
BEGIN
/*!*/;
# at 830
#190712 17:15:42 server id 1 end_log_pos 858 Intvar
SET INSERT_ID=3/*!*/;
# at 858
#190712 17:15:42 server id 1 end_log_pos 1046 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562922942/*!*/;
insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('写字1','1','25','1000',now())
/*!*/;
# at 1046
#190712 17:15:42 server id 1 end_log_pos 1073 Xid = 2866
COMMIT/*!*/;
# at 1073
#190712 17:15:42 server id 1 end_log_pos 1152 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562922942/*!*/;
BEGIN
/*!*/;
# at 1152
#190712 17:15:42 server id 1 end_log_pos 1180 Intvar
SET INSERT_ID=4/*!*/;
# at 1180
#190712 17:15:42 server id 1 end_log_pos 1368 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562922942/*!*/;
insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('画画1','1','26','1000',now())
/*!*/;
# at 1368
#190712 17:15:42 server id 1 end_log_pos 1395 Xid = 2867
COMMIT/*!*/;
# at 1395
#190712 17:15:47 server id 1 end_log_pos 1474 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562922947/*!*/;
BEGIN
/*!*/;
# at 1474
#190712 17:15:47 server id 1 end_log_pos 1502 Intvar
SET INSERT_ID=5/*!*/;
# at 1502
#190712 17:15:47 server id 1 end_log_pos 1690 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562922947/*!*/;
insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('跳舞1','1','27','1000',now())
/*!*/;
# at 1690
#190712 17:15:47 server id 1 end_log_pos 1717 Xid = 2868
COMMIT/*!*/;
# at 1717
#190712 17:17:49 server id 1 end_log_pos 1788 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923069/*!*/;
BEGIN
/*!*/;
# at 1788
#190712 17:17:49 server id 1 end_log_pos 1913 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923069/*!*/;
update specialty set coach_id = 10001 where specialtyid = 1
/*!*/;
# at 1913
#190712 17:17:49 server id 1 end_log_pos 1940 Xid = 2871
COMMIT/*!*/;
# at 1940
#190712 17:18:01 server id 1 end_log_pos 2011 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923081/*!*/;
BEGIN
/*!*/;
# at 2011
#190712 17:18:01 server id 1 end_log_pos 2136 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923081/*!*/;
update specialty set coach_id = 10002 where specialtyid = 2
/*!*/;
# at 2136
#190712 17:18:01 server id 1 end_log_pos 2163 Xid = 2872
COMMIT/*!*/;
# at 2163
#190712 17:18:10 server id 1 end_log_pos 2234 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923090/*!*/;
BEGIN
/*!*/;
# at 2234
#190712 17:18:10 server id 1 end_log_pos 2359 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923090/*!*/;
update specialty set coach_id = 10003 where specialtyid = 3
/*!*/;
# at 2359
#190712 17:18:10 server id 1 end_log_pos 2386 Xid = 2873
COMMIT/*!*/;
# at 2386
#190712 17:18:18 server id 1 end_log_pos 2457 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923098/*!*/;
BEGIN
/*!*/;
# at 2457
#190712 17:18:18 server id 1 end_log_pos 2582 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923098/*!*/;
update specialty set coach_id = 10004 where specialtyid = 4
/*!*/;
# at 2582
#190712 17:18:18 server id 1 end_log_pos 2609 Xid = 2874
COMMIT/*!*/;
# at 2609
#190712 17:18:26 server id 1 end_log_pos 2680 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923106/*!*/;
BEGIN
/*!*/;
# at 2680
#190712 17:18:26 server id 1 end_log_pos 2805 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923106/*!*/;
update specialty set coach_id = 10005 where specialtyid = 5
/*!*/;
# at 2805
#190712 17:18:26 server id 1 end_log_pos 2832 Xid = 2875
COMMIT/*!*/;
# at 2832
#190712 17:20:42 server id 1 end_log_pos 2916 Query thread_id=2 exec_time=0 error_code=0
SET TIMESTAMP=1562923242/*!*/;
truncate specialty
/*!*/;
# at 2916
#190712 17:15:42 server id 1 end_log_pos 2987 Query thread_id=2 exec_time=351 error_code=0
SET TIMESTAMP=1562922942/*!*/;
BEGIN
/*!*/;
# at 2987
#190712 17:15:42 server id 1 end_log_pos 3015 Intvar
SET INSERT_ID=1/*!*/;
# at 3015
#190712 17:15:42 server id 1 end_log_pos 3203 Query thread_id=2 exec_time=351 error_code=0
SET TIMESTAMP=1562922942/*!*/;
insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('跑步1','1','23','1000',now())
/*!*/;
# at 3203
#190712 17:15:42 server id 1 end_log_pos 3230 Xid = 2900
COMMIT/*!*/;
# at 3230
#190712 17:15:42 server id 1 end_log_pos 3301 Query thread_id=2 exec_time=351 error_code=0
SET TIMESTAMP=1562922942/*!*/;
BEGIN
/*!*/;
# at 3301
#190712 17:15:42 server id 1 end_log_pos 3329 Intvar
SET INSERT_ID=2/*!*/;
# at 3329
#190712 17:15:42 server id 1 end_log_pos 3517 Query thread_id=2 exec_time=351 error_code=0
SET TIMESTAMP=1562922942/*!*/;
insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('读书1','1','24','1000',now())
/*!*/;
# at 3517
#190712 17:15:42 server id 1 end_log_pos 3544 Xid = 2906
COMMIT/*!*/;
# at 3544
#190712 17:15:42 server id 1 end_log_pos 3615 Query thread_id=2 exec_time=351 error_code=0
SET TIMESTAMP=1562922942/*!*/;
BEGIN
/*!*/;
# at 3615
#190712 17:15:42 server id 1 end_log_pos 3643 Intvar
SET INSERT_ID=3/*!*/;
# at 3643
#190712 17:15:42 server id 1 end_log_pos 3831 Query thread_id=2 exec_time=351 error_code=0
SET TIMESTAMP=1562922942/*!*/;
insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('写字1','1','25','1000',now())
/*!*/;
# at 3831
#190712 17:15:42 server id 1 end_log_pos 3858 Xid = 2912
COMMIT/*!*/;
# at 3858
#190712 17:15:42 server id 1 end_log_pos 3929 Query thread_id=2 exec_time=351 error_code=0
SET TIMESTAMP=1562922942/*!*/;
BEGIN
/*!*/;
# at 3929
#190712 17:15:42 server id 1 end_log_pos 3957 Intvar
SET INSERT_ID=4/*!*/;
# at 3957
#190712 17:15:42 server id 1 end_log_pos 4145 Query thread_id=2 exec_time=351 error_code=0
SET TIMESTAMP=1562922942/*!*/;
insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('画画1','1','26','1000',now())
/*!*/;
# at 4145
#190712 17:15:42 server id 1 end_log_pos 4172 Xid = 2918
COMMIT/*!*/;
# at 4172
#190712 17:15:47 server id 1 end_log_pos 4243 Query thread_id=2 exec_time=346 error_code=0
SET TIMESTAMP=1562922947/*!*/;
BEGIN
/*!*/;
# at 4243
#190712 17:15:47 server id 1 end_log_pos 4271 Intvar
SET INSERT_ID=5/*!*/;
# at 4271
#190712 17:15:47 server id 1 end_log_pos 4459 Query thread_id=2 exec_time=346 error_code=0
SET TIMESTAMP=1562922947/*!*/;
insert into specialty(specialty_name, type, user_id, coach_id, createtime) values('跳舞1','1','27','1000',now())
/*!*/;
# at 4459
#190712 17:15:47 server id 1 end_log_pos 4486 Xid = 2924
COMMIT/*!*/;
# at 4486
#190712 17:17:49 server id 1 end_log_pos 4557 Query thread_id=2 exec_time=224 error_code=0
SET TIMESTAMP=1562923069/*!*/;
BEGIN
/*!*/;
# at 4557
#190712 17:17:49 server id 1 end_log_pos 4682 Query thread_id=2 exec_time=224 error_code=0
SET TIMESTAMP=1562923069/*!*/;
update specialty set coach_id = 10001 where specialtyid = 1
/*!*/;
# at 4682
#190712 17:17:49 server id 1 end_log_pos 4709 Xid = 2929
COMMIT/*!*/;
# at 4709
#190712 17:18:01 server id 1 end_log_pos 4780 Query thread_id=2 exec_time=212 error_code=0
SET TIMESTAMP=1562923081/*!*/;
BEGIN
/*!*/;
# at 4780
#190712 17:18:01 server id 1 end_log_pos 4905 Query thread_id=2 exec_time=212 error_code=0
SET TIMESTAMP=1562923081/*!*/;
update specialty set coach_id = 10002 where specialtyid = 2
/*!*/;
# at 4905
#190712 17:18:01 server id 1 end_log_pos 4932 Xid = 2934
COMMIT/*!*/;
# at 4932
#190712 17:18:10 server id 1 end_log_pos 5003 Query thread_id=2 exec_time=203 error_code=0
SET TIMESTAMP=1562923090/*!*/;
BEGIN
/*!*/;
# at 5003
#190712 17:18:10 server id 1 end_log_pos 5128 Query thread_id=2 exec_time=203 error_code=0
SET TIMESTAMP=1562923090/*!*/;
update specialty set coach_id = 10003 where specialtyid = 3
/*!*/;
# at 5128
#190712 17:18:10 server id 1 end_log_pos 5155 Xid = 2939
COMMIT/*!*/;
# at 5155
#190712 17:18:18 server id 1 end_log_pos 5226 Query thread_id=2 exec_time=195 error_code=0
SET TIMESTAMP=1562923098/*!*/;
BEGIN
/*!*/;
# at 5226
#190712 17:18:18 server id 1 end_log_pos 5351 Query thread_id=2 exec_time=195 error_code=0
SET TIMESTAMP=1562923098/*!*/;
update specialty set coach_id = 10004 where specialtyid = 4
/*!*/;
# at 5351
#190712 17:18:18 server id 1 end_log_pos 5378 Xid = 2944
COMMIT/*!*/;
# at 5378
#190712 17:18:26 server id 1 end_log_pos 5449 Query thread_id=2 exec_time=187 error_code=0
SET TIMESTAMP=1562923106/*!*/;
BEGIN
/*!*/;
# at 5449
#190712 17:18:26 server id 1 end_log_pos 5574 Query thread_id=2 exec_time=187 error_code=0
SET TIMESTAMP=1562923106/*!*/;
update specialty set coach_id = 10005 where specialtyid = 5
/*!*/;
# at 5574
#190712 17:18:26 server id 1 end_log_pos 5601 Xid = 2949
COMMIT/*!*/;
# at 5601
#190712 17:20:42 server id 1 end_log_pos 5685 Query thread_id=2 exec_time=51 error_code=0
SET TIMESTAMP=1562923242/*!*/;
truncate specialty
/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
最后一次执行删除，也是在5685这个位置；
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000002 | 5685 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
查看字符集
mysql> \s
--------------
/mine/serve/mysql/bin/mysql Ver 14.14 Distrib 5.5.49, for Linux (x86_64) using readline 5.1
Connection id: 2
Current database: newdata
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ''
Using delimiter: ;
Server version: 5.5.49-log Source distribution
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: utf8 【服务器字符集】
Db characterset: utf8 【数据库字符】
Client characterset: utf8mb4 【客户端字符集】
Conn. characterset: utf8mb4 【连接字符集】
UNIX socket: /tmp/mysql.sock
Uptime: 2 hours 50 min 4 sec
Threads: 1 Questions: 2549 Slow queries: 0 Opens: 34 Flush tables: 1 Open tables: 27 Queries per second avg: 0.249
--------------
8、删除数据表数据
mysql> truncate specialty;
Query OK, 0 rows affected (0.01 sec)
mysql> select * from specialty;
Empty set (0.00 sec)
9、从库进行bin-log数据恢复
-- 从库连接主库
/fitness/serve/mysql/bin/mysql -h 47.104.176.145 -u slave -p slave121
服务器数据库连接2003了，处理一下：/bin/systemctl stop firewalld.service [后续再处理]
[root@iZ8vb2uz59jd5pisp87ljjZ ~]# /fitness/serve/mysql/bin/mysql -h 47.104.176.145 -u slave -p newdata
Enter password:
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.5.49-log Source distribution
Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
mysql> show tables;
+-------------------+
| Tables_in_newdata |
+-------------------+
| specialty |
+-------------------+
1 row in set (0.01 sec)
mysql> select * from specialty;
Empty set (0.02 sec)
-- 主库通过bin-log日志恢复数据
[root@iZm5eizpokikoertia0x31Z bin]# pwd
/mine/serve/mysql/bin
[root@iZm5eizpokikoertia0x31Z bin]# ./mysqlbinlog /mine/serve/mysql/data/mysql-bin.000002 | ./mysql -u root -p
Enter password:
mysql> select * from specialty;
Empty set (0.00 sec)
数据为什么为空了呢？没有恢复吗？还是命令写差了？
仔细想了想，刚刚执行的是整个bin-log日志，最后一次执行删除，也是在5685这个位置；
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000002 | 5685 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
整个执行bin-log日志，相当于插入了，又删除了，所以要避开5685这个位置。
./mysqlbinlog /mine/serve/mysql/data/mysql-bin.000002 --start-position=107 --stop-position=5601 | ./mysql -u root -p
[root@iZm5eizpokikoertia0x31Z bin]# ./mysqlbinlog /mine/serve/mysql/data/mysql-bin.000002 --start-position=107 --stop-position=5601 | ./mysql -u root -p
Enter password:
[root@iZm5eizpokikoertia0x31Z bin]#
查看结果：
mysql> select * from specialty;
+-------------+----------------+------+---------+----------+---------------------+
| specialtyid | specialty_name | type | user_id | coach_id | createtime |
+-------------+----------------+------+---------+----------+---------------------+
| 1 | 跑步1 | 1 | 23 | 10001 | 2019-07-12 17:17:49 |
| 2 | 读书1 | 1 | 24 | 10002 | 2019-07-12 17:18:01 |
| 3 | 写字1 | 1 | 25 | 10003 | 2019-07-12 17:18:10 |
| 4 | 画画1 | 1 | 26 | 10004 | 2019-07-12 17:18:18 |
| 5 | 跳舞1 | 1 | 27 | 10005 | 2019-07-12 17:18:26 |
+-------------+----------------+------+---------+----------+---------------------+
5 rows in set (0.01 sec)
----------------------------------------------------------------------------------------------------------------------==
