MySQL使用binlog2sql閃回誤刪除資料
查詢資料庫相關配置引數
root [test]> show global variables like ‘binlog%format%’; +—————+——-+ | Variable_name | Value | +—————+——-+ | binlog_format | ROW | +—————+——-+ 1 row in set (0.00 sec) root [test]> show global variables like ‘binlog%row%image%’; +——————+——-+ | Variable_name | Value | +——————+——-+ | binlog_row_image | FULL | +——————+——-+ 1 row in set (0.00 sec) root [test]> show global variables like ‘%log%bin%’; +———————————-+———————————————–+ | Variable_name | Value | +———————————-+———————————————–+ | log_bin | ON | | log_bin_basename | /data1/mysql_log_23306/binlog/mysql-bin | | log_bin_index | /data1/mysql_log_23306/binlog/mysql-bin.index | | log_bin_trust_function_creators | ON | | log_bin_use_v1_row_events | OFF | | log_statements_unsafe_for_binlog | ON | +———————————-+———————————————–+ 6 rows in set (0.01 sec)
安裝binlog2sql
正克隆到 ‘binlog2sql’…
remote: Counting objects: 298, done.
remote: Compressing objects: 100% (4/4), done.
remote: Total 298 (delta 0), reused 1 (delta 0), pack-reused 294
接收物件中: 100% (298/298), 147.01 KiB | 49.00 KiB/s, done.
處理 delta 中: 100% (151/151), done.
[[email protected] binlog2sql]# source ../venv4archer/bin/activate
(venv4archer) [
建立測試資料，並執行誤刪除
root [(none)]> flush logs; Query OK, 0 rows affected (0.00 sec) root [(none)]> use test Database changed root [test]> create table user(id int(12) unsigned auto_increment comment ‘id’ primary key, name varchar(15), add_time timestamp); Query OK, 0 rows affected (0.01 sec) root [test]> insert into user(name, add_time) values(‘neo’, ‘2018-09-01’), (‘trinity’, ‘2018-09-02’), (‘jason’, ‘2018-09-05’); Query OK, 3 rows affected (0.00 sec) Records: 3 Duplicates: 0 Warnings: 0 root [test]> delete from user where add_time < ‘2018-09-05’; Query OK, 2 rows affected (0.01 sec)
檢視二進位制日誌檔案
root [test]> show binary logs; +——————+———–+ | Log_name | File_size | +——————+———–+ | mysql-bin.000002 | 2236 | | mysql-bin.000003 | 201 | | mysql-bin.000004 | 1218 | +——————+———–+ 3 rows in set (0.00 sec)
解析出標準SQL
(venv4archer) [[email protected] binlog2sql]# python binlog2sql/binlog2sql.py -uroot -p’root’ -h 127.0.0.1 -P 23306 -dtest -tuser –start-file=’mysql-bin.000004’ –start-datetime=’2018-09-14 17:00:00’ –stop-datetime=’2018-09-14 18:25:00’ > /tmp/20180914_raw.sql
(venv4archer) [[email protected] binlog2sql]# cat /tmp/20180914_raw.sql
USE b’test’;
create table user(id int(12) unsigned auto_increment comment ‘id’ primary key, name varchar(15), add_time timestamp);
INSERT INTO test.user(id, name, add_time) VALUES (1, ‘neo’, ‘2018-09-01 00:00:00’); #start 411 end 824 time 2018-09-14 18:22:33
INSERT INTO test.user(id, name, add_time) VALUES (2, ‘trinity’, ‘2018-09-02 00:00:00’); #start 411 end 824 time 2018-09-14 18:22:33
INSERT INTO test.user(id, name, add_time) VALUES (3, ‘jason’, ‘2018-09-05 00:00:00’); #start 411 end 824 time 2018-09-14 18:22:33
DELETE FROM test.user WHERE id=1 AND name=’neo’ AND add_time=’2018-09-01 00:00:00’ LIMIT 1; #start 855 end 1187 time 2018-09-14 18:23:31
DELETE FROM test.user WHERE id=2 AND name=’trinity’ AND add_time=’2018-09-02 00:00:00’ LIMIT 1; #start 855 end 1187 time 2018-09-14 18:23:31
解析出回滾SQL
7
(venv4archer) [[email protected] binlog2sql]# python binlog2sql/binlog2sql.py -uroot -p’root’ -h 127.0.0.1 -P 23306 -dtest -tuser –start-file=’mysql-bin.000004’ –start-datetime=’2018-09-14 17:00:00’ –stop-datetime=’2018-09-14 18:25:00’ -B > /tmp/20180914_rollback.sql
(venv4archer) [[email protected] binlog2sql]# cat //tmp/20180914_rollback.sql
INSERT INTO test.user(id, name, add_time) VALUES (2, ‘trinity’, ‘2018-09-02 00:00:00’); #start 855 end 1187 time 2018-09-14 18:23:31
INSERT INTO test.user(id, name, add_time) VALUES (1, ‘neo’, ‘2018-09-01 00:00:00’); #start 855 end 1187 time 2018-09-14 18:23:31
DELETE FROM test.user WHERE id=3 AND name=’jason’ AND add_time=’2018-09-05 00:00:00’ LIMIT 1; #start 411 end 824 time 2018-09-14 18:22:33
DELETE FROM test.user WHERE id=2 AND name=’trinity’ AND add_time=’2018-09-02 00:00:00’ LIMIT 1; #start 411 end 824 time 2018-09-14 18:22:33
DELETE FROM test.user WHERE id=1 AND name=’neo’ AND add_time=’2018-09-01 00:00:00’ LIMIT 1; #start 411 end 824 time 2018-09-14 18:22:33
本文來源：http://blog.itpub.net/26506993/viewspace-2214227/