Mysql基于二进制日志进行恢复的简单案列

环境搭建模拟测试
假如：全备的是在FILE=mysql-bin.000008;Position=5573
但是没有做增量备份
采用二进制日志恢复
首先删除一张表，然后删除整个库
要求：数据恢复到删除整个数据库前的时刻？？？
1. 创建库 表插入数据
[root@Mysql data]# mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 12
Server version: 5.5.33-log MySQL Community Server (GPL)
Copyright (c) 2000, 2013, 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> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
+--------------------+
4 rows in set (0.00 sec)
mysql> create database mydb;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mydb               |
| mysql              |
| performance_schema |
| test               |
+--------------------+
5 rows in set (0.01 sec)
mysql> use mydb;
Database changed
mysql> CREATE TABLE allentuns
    -> (
    -> Id_P int,
    -> LastName varchar(255),
    -> FirstName varchar(255),
    -> Address varchar(255),
    -> City varchar(255)
    -> );
Query OK, 0 rows affected (0.01 sec)
mysql> insert into allentuns values (1,"zheng","sheng","HaiDian","BJ");
allentuns values (9,"guo","meng","HaiDian","BJ");
insert into allentuns values (10,"wang","wei","HaiDian","BJ");Query OK, 1 row affected (0.01 sec)
mysql> insert into allentuns values (2,"qin","hen","HaiDian","BJ");
Query OK, 1 row affected (0.01 sec)
mysql> insert into allentuns values (3,"wang","yang","HaiDian","BJ");
Query OK, 1 row affected (0.01 sec)
mysql> insert into allentuns values (4,"zhao","meng","HaiDian","BJ");
Query OK, 1 row affected (0.00 sec)
mysql> insert into allentuns values (5,"liang","wei","HaiDian","BJ");
Query OK, 1 row affected (0.01 sec)
mysql> insert into allentuns values (6,"sun","sheng","HaiDian","BJ");
Query OK, 1 row affected (0.01 sec)
mysql> insert into allentuns values (7,"qi","hen","HaiDian","BJ");
Query OK, 1 row affected (0.00 sec)
mysql> insert into allentuns values (8,"zhu","yang","HaiDian","BJ");
Query OK, 1 row affected (0.01 sec)
mysql> insert into allentuns values (9,"guo","meng","HaiDian","BJ");
Query OK, 1 row affected (0.01 sec)
mysql> insert into allentuns values (10,"wang","wei","HaiDian","BJ");
Query OK, 1 row affected (0.01 sec)
mysql> select * from allentuns
    -> ;
+------+----------+-----------+---------+------+
| Id_P | LastName | FirstName | Address | City |
+------+----------+-----------+---------+------+
|    1 | zheng    | sheng     | HaiDian | BJ   |
|    2 | qin      | hen       | HaiDian | BJ   |
|    3 | wang     | yang      | HaiDian | BJ   |
|    4 | zhao     | meng      | HaiDian | BJ   |
|    5 | liang    | wei       | HaiDian | BJ   |
|    6 | sun      | sheng     | HaiDian | BJ   |
|    7 | qi       | hen       | HaiDian | BJ   |
|    8 | zhu      | yang      | HaiDian | BJ   |
|    9 | guo      | meng      | HaiDian | BJ   |
|   10 | wang     | wei       | HaiDian | BJ   |
+------+----------+-----------+---------+------+
10 rows in set (0.00 sec)
mysql> select count(*) from allentuns;
+----------+
| count(*) |
+----------+
|       10 |
+----------+
1 row in set (0.04 sec)
mysql> show master status;
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000008 |     5573 |              |                  |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
mysql> show master status\g
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000008 |     5573 |              |                  |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
mysql> show table status\G
*************************** 1. row ***************************
           Name: allentuns
         Engine: InnoDB
        Version: 10
     Row_format: Compact
           Rows: 10
 Avg_row_length: 1638
    Data_length: 16384
Max_data_length: 0
   Index_length: 0
      Data_free: 9437184
 Auto_increment: NULL
    Create_time: 2014-03-29 13:29:47
    Update_time: NULL
     Check_time: NULL
      Collation: latin1_swedish_ci
       Checksum: NULL
 Create_options:
        Comment:
1 row in set (0.00 sec)
mysql>
2. 全备mydb库 查看备份信息
[root@Mysql ~]# mysqldump --events --routines  --master-data=2 --single-transaction --flush-logs --databases mydb > ./mydb.sql
[root@Mysql ~]# ll
total 28
-rw-------. 1 root root  945 Mar  6 21:05 anaconda-ks.cfg
-rw-r--r--. 1 root root 8785 Mar  6 21:05 install.log
-rw-r--r--. 1 root root 3161 Mar  6 21:03 install.log.syslog
-rw-r--r--  1 root root 2488 Mar 29 13:16 mydb1.sql
-rw-r--r--  1 root root 2680 Mar 29 13:38 mydb.sql
[root@Mysql ~]# less mydb.sql
-- MySQL dump 10.13  Distrib 5.5.33, for linux2.6 (x86_64)
--
-- Host: localhost    Database: mydb
-- ------------------------------------------------------
-- Server version       5.5.33-log
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE=‘+00:00‘ */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE=‘NO_AUTO_VALUE_ON_ZERO‘ */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
--
-- Position to start replication or point-in-time recovery from
--
-- CHANGE MASTER TO MASTER_LOG_FILE=‘mysql-bin.000009‘, MASTER_LOG_POS=107;
--
-- Current Database: `mydb`
--
CREATE DATABASE /*!32312 IF NOT EXISTS*/ `mydb` /*!40100 DEFAULT CHARACTER SET latin1 */;
mydb.sql
3. 模拟测试
首先删除allentuns表 然后在删除mydb库
mysql> select * from allentuns;
+------+----------+-----------+---------+------+
| Id_P | LastName | FirstName | Address | City |
+------+----------+-----------+---------+------+
|    1 | zheng    | sheng     | HaiDian | BJ   |
|    2 | qin      | hen       | HaiDian | BJ   |
|    3 | wang     | yang      | HaiDian | BJ   |
|    4 | zhao     | meng      | HaiDian | BJ   |
|    5 | liang    | wei       | HaiDian | BJ   |
|    6 | sun      | sheng     | HaiDian | BJ   |
|    7 | qi       | hen       | HaiDian | BJ   |
|    8 | zhu      | yang      | HaiDian | BJ   |
|    9 | guo      | meng      | HaiDian | BJ   |
|   10 | wang     | wei       | HaiDian | BJ   |
+------+----------+-----------+---------+------+
10 rows in set (0.00 sec)
mysql> delete from allentuns where  Id_P="5";
Query OK, 1 row affected (0.01 sec)
mysql> select * from allentuns;
+------+----------+-----------+---------+------+
| Id_P | LastName | FirstName | Address | City |
+------+----------+-----------+---------+------+
|    1 | zheng    | sheng     | HaiDian | BJ   |
|    2 | qin      | hen       | HaiDian | BJ   |
|    3 | wang     | yang      | HaiDian | BJ   |
|    4 | zhao     | meng      | HaiDian | BJ   |
|    6 | sun      | sheng     | HaiDian | BJ   |
|    7 | qi       | hen       | HaiDian | BJ   |
|    8 | zhu      | yang      | HaiDian | BJ   |
|    9 | guo      | meng      | HaiDian | BJ   |
|   10 | wang     | wei       | HaiDian | BJ   |
+------+----------+-----------+---------+------+
9 rows in set (0.00 sec)
mysql> drop database mydb;
Query OK, 1 row affected (0.01 sec)
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
+--------------------+
4 rows in set (0.00 sec)
mysql>
4. 恢复mydb库
[root@Mysql ~]# mysql < mydb.sql
mysql> select * from mydb.allentuns;  很明显数据全在 不是我们要的结果  第五条记录不存在才对
+------+----------+-----------+---------+------+
| Id_P | LastName | FirstName | Address | City |
+------+----------+-----------+---------+------+
|    1 | zheng    | sheng     | HaiDian | BJ   |
|    2 | qin      | hen       | HaiDian | BJ   |
|    3 | wang     | yang      | HaiDian | BJ   |
|    4 | zhao     | meng      | HaiDian | BJ   |
|    5 | liang    | wei       | HaiDian | BJ   |
|    6 | sun      | sheng     | HaiDian | BJ   |
|    7 | qi       | hen       | HaiDian | BJ   |
|    8 | zhu      | yang      | HaiDian | BJ   |
|    9 | guo      | meng      | HaiDian | BJ   |
|   10 | wang     | wei       | HaiDian | BJ   |
+------+----------+-----------+---------+------+
10 rows in set (0.01 sec)
mysql>
5. 查看二进制日志
首先查看mysql-bin.000008
[root@Mysql data]# mysqlbinlog mysql-bin.000008
# at 5204
#140329 13:29:55 server id 1  end_log_pos 5327  Query   thread_id=12    exec_time=0 error_code=0
SET TIMESTAMP=1396114195/*!*/;
insert into allentuns values (9,"guo","meng","HaiDian","BJ")
/*!*/;
# at 5327
#140329 13:29:55 server id 1  end_log_pos 5354  Xid = 236
COMMIT/*!*/;
# at 5354
#140329 13:29:56 server id 1  end_log_pos 5422  Query   thread_id=12    exec_time=0 error_code=0
SET TIMESTAMP=1396114196/*!*/;
BEGIN
/*!*/;
# at 5422
#140329 13:29:56 server id 1  end_log_pos 5546  Query   thread_id=12    exec_time=0 error_code=0
SET TIMESTAMP=1396114196/*!*/;
insert into allentuns values (10,"wang","wei","HaiDian","BJ")
/*!*/;
# at 5546
#140329 13:29:56 server id 1  end_log_pos 5573  Xid = 237
COMMIT/*!*/;
# at 5573
#140329 13:38:20 server id 1  end_log_pos 5616  Rotate to mysql-bin.000009  pos: 4
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
很明显这个二进制日志并没有记录我们delete 和 drop语句
这个事因为我们在进行数据库备份的时候 执行flush logs 滚动日志
因此日志切换到了下一个二进制日志中
那我们来查看下一个二进制日志
[root@Mysql data]# mysqlbinlog mysql-bin.000009 |less
DAU3Uw8BAAAAZwAAAGsAAAABAAQANS41LjMzLWxvZwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAEzgNAAgAEgAEBAQEEgAAVAAEGggAAAAICAgCAA==
‘/*!*/;
# at 107
#140329 13:42:44 server id 1  end_log_pos 175   Query   thread_id=12    exec_time=0     error_code=0
SET TIMESTAMP=1396114964/*!*/;
SET @@session.pseudo_thread_id=12/*!*/;
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 utf8 *//*!*/;
SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=8/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
# at 175
#140329 13:42:44 server id 1  end_log_pos 275   Query   thread_id=12    exec_time=0     error_code=0
use `mydb`/*!*/;
SET TIMESTAMP=1396114964/*!*/;
delete from allentuns where  Id_P="5"  #delete
/*!*/;
# at 275
#140329 13:42:44 server id 1  end_log_pos 302   Xid = 282
COMMIT/*!*/;
# at 302
#140329 13:43:01 server id 1  end_log_pos 383   Query   thread_id=12    exec_time=0     error_code=0
SET TIMESTAMP=1396114981/*!*/;
drop database mydb  #drop
/*!*/;
# at 383
#140329 13:47:44 server id 1  end_log_pos 534   Query   thread_id=14    exec_time=0     error_code=0
SET TIMESTAMP=1396115264/*!*/;
SET @@session.foreign_key_checks=0, @@session.unique_checks=0/*!*/;
SET @@session.sql_mode=524288/*!*/;
CREATE DATABASE /*!32312 IF NOT EXISTS*/ `mydb` /*!40100 DEFAULT CHARACTER SET latin1 */
/*!*/;
# at 534
#140329 13:47:44 server id 1  end_log_pos 655   Query   thread_id=14    exec_time=0     error_code=0
use `mydb`/*!*/;
SET TIMESTAMP=1396115264/*!*/;
DROP TABLE IF EXISTS `allentuns` /* generated by server */
/*!*/;
# at 655
#140329 13:47:44 server id 1  end_log_pos 969   Query   thread_id=14    exec_time=0     error_code=0
SET TIMESTAMP=1396115264/*!*/;
我们可以利用一下信息进行数据恢复
-- CHANGE MASTER TO MASTER_LOG_FILE=‘mysql-bin.000009‘, MASTER_LOG_POS=107;
#140329 13:42:44 server id 1  end_log_pos 275   Query   thread_id=12    exec_time=0     error_code=0
use `mydb`/*!*/;
SET TIMESTAMP=1396114964/*!*/;
delete from allentuns where  Id_P="5"  #delete
#140329 13:43:01 server id 1  end_log_pos 383   Query   thread_id=12    exec_time=0     error_code=0
SET TIMESTAMP=1396114981/*!*/;
drop database mydb  #drop
6. 利用二进制日志恢复数据
[root@Mysql data]# mysqlbinlog --start-position=107 --stop-position=275 mysql-bin.000009 |mysql
mysql> select * from mydb.allentuns;
+------+----------+-----------+---------+------+
| Id_P | LastName | FirstName | Address | City |
+------+----------+-----------+---------+------+
|    1 | zheng    | sheng     | HaiDian | BJ   |
|    2 | qin      | hen       | HaiDian | BJ   |
|    3 | wang     | yang      | HaiDian | BJ   |
|    4 | zhao     | meng      | HaiDian | BJ   |
|    6 | sun      | sheng     | HaiDian | BJ   |
|    7 | qi       | hen       | HaiDian | BJ   |
|    8 | zhu      | yang      | HaiDian | BJ   |
|    9 | guo      | meng      | HaiDian | BJ   |
|   10 | wang     | wei       | HaiDian | BJ   |
+------+----------+-----------+---------+------+
9 rows in set (0.00 sec)
mysql>
完成了 第五条记录不存在了

本文出自 “郑彦生” 博客，请务必保留此出处http://467754239.blog.51cto.com/4878013/1386503

Mysql基于二进制日志进行恢复的简单案列,古老的榕树,5-wow.com