送给mysql dba们一颗速效救心丸，闪回之binlog2sql

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做了多年oracle dba，对oralce的闪回是一往情深.如今搞起了mysql,找了个不错的闪回工具，分享给大家吧。


1.下载
https://github.com/danfengcao/binlog2sql
http://rpmfind.net
Search: python-pip
pip 是一个Python包管理工具，主要是用于安装 PyPI 上的软件包。


2. 安装


# yum install python-setuptools -y
# rpm -ivh python-pip-7.1.0-1.el6.noarch.rpm   --rpmfind.net 下载上传安装
# pip install PyMySQL
# pip install -r requirments.txt
# pwd
/usr/local/binlog2sql-master/binlog2sql-master
# less README.md  --这个必须要看个十遍，八遍的才行


3. 测试用例


(root@localhost) [kk]> create database roidba;
Query OK, 1 row affected (0.00 sec)
  
(root@localhost) [kk]> use roidba
Database changed
(root@localhost) [roidba]> create table roidba ( id int,name varchar(10));
Query OK, 0 rows affected (0.15 sec)
  
(root@localhost) [roidba]> insert into roidba values(1,'mysql');
Query OK, 1 row affected (0.00 sec)
  
(root@localhost) [roidba]> insert into roidba values(2,'oracle');
Query OK, 1 row affected (0.00 sec)
  
(root@localhost) [roidba]> insert into roidba values(3,'mariadb');
Query OK, 1 row affected (0.00 sec)
(root@localhost) [roidba]> delete from roidba;
Query OK, 3 rows affected (0.01 sec)
(root@localhost) [roidba]> select * from roidba;
Empty set (0.00 sec)


4. 创建闪回用户


(root@localhost) [roidba]> GRANT SELECT,REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO flashback@'%' identified by 'flashback';  
Query OK, 0 rows affected (0.04 sec)
  
(root@localhost) [roidba]> flush privileges;
Query OK, 0 rows affected (0.05 sec)
 
5. 闪回的要求


1)知道大概的时间点2017-01-12 18:00 ~ 2017-01-12 18:00
2)知道binlog信息
(root@localhost) [roidba]> show binary logs;
+------------------+----------------+
| Log_name  | File_size |
+------------------+----------------+
| mysql-bin.000001 |3828 |
| mysql-bin.000002 | 238 |
| mysql-bin.000003 |1231 |
+------------------+---------------+
 
6. 解析


--binlog中解析的sql
[root@mysql-121 binlog2sql-master]# python binlog2sql/binlog2sql.py -h192.168.80.132 -P3306 -uflashback -pflashback -droidba -troidba --start-file='mysql-bin.000003' --start-datetime='2017-01-12 18:00:00' --stop-datetime='2017-01-12 18:30:00'
INSERT INTO `roidba`.`roidba`(`id`, `name`) VALUES (1, 'mysql'); #start 239 end 413 time 2017-01-12 18:10:54
INSERT INTO `roidba`.`roidba`(`id`, `name`) VALUES (2, 'oracle'); #start 492 end 667 time 2017-01-12 18:11:00
INSERT INTO `roidba`.`roidba`(`id`, `name`) VALUES (3, 'mariadb'); #start 746 end 922 time 2017-01-12 18:11:08
DELETE FROM `roidba`.`roidba` WHERE `id`=1 AND `name`='mysql' LIMIT 1; #start 1001 end 1200 time 2017-01-12 18:11:14
DELETE FROM `roidba`.`roidba` WHERE `id`=2 AND `name`='oracle' LIMIT 1; #start 1001 end 1200 time 2017-01-12 18:11:14
DELETE FROM `roidba`.`roidba` WHERE `id`=3 AND `name`='mariadb' LIMIT 1; #start 1001 end 1200 time 2017-01-12 18:11:14
USE roidba;
GRANT SELECT, REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'flashback'@'%' IDENTIFIED BY PASSWORD '*6DE874C277DDA35061BD526FB38B6A3C8B3A9254';
USE roidba;
flush privileges;
 
7. 闪回


--闪回sql
# python binlog2sql/binlog2sql.py -h192.168.80.132 -P3306 -uflashback -p'flashback' -droidba -troidba --start-file='mysql-bin.000003' --start-position=1001 --stop-position=1200 -B > rollback.sql
[root@mysql-121 binlog2sql-master]# less rollback.sql
INSERT INTO `roidba`.`roidba`(`id`, `name`) VALUES (3, 'mariadb'); #start 1001 end 1200 time 2017-01-12 18:11:14
INSERT INTO `roidba`.`roidba`(`id`, `name`) VALUES (2, 'oracle'); #start 1001 end 1200 time 2017-01-12 18:11:14
INSERT INTO `roidba`.`roidba`(`id`, `name`) VALUES (1, 'mysql'); #start 1001 end 1200 time 2017-01-12 18:11:14
--开始回滚
[root@mysql-121 binlog2sql-master]# mysql -ubackup -pbackup -h192.168.80.132 <./rollback.sql   --具有插入权限才可以
8.验证
自己多测试，多动手，看别人做很简单，其实真的自己上手就不一定了，少说多做，少扯淡。

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