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binlog2sql
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fix README

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danfengcao 2016-12-10 13:16:46 +08:00
parent 61f558b5e0
commit 1209796884
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README.md
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@ -47,19 +47,21 @@ pip install -r requirements.txt
$ python binlog2sql.py -h127.0.0.1 -P3306 -uadmin -p'admin' -dtest -t test3 test4 --start-file='mysql-bin.000002'
输出：
INSERT INTO `test`.`test3`(`data`, `id`, `data2`) VALUES ('Hello', 1, 'World'); #start 474 end 642
INSERT INTO `test`.`test4`(`data`, `id`, `data2`) VALUES ('Hello', 1, 'World'); #start 669 end 837
UPDATE `test`.`test4` SET `data`='World', `id`=1, `data2`='Hello' WHERE `data`='Hello' AND `id`=1 AND `data2`='World' LIMIT 1; #start 864 end 1052
DELETE FROM `test`.`test4` WHERE `data`='World' AND `id`=1 AND `data2`='Hello' LIMIT 1; #start 1079 end 1247
INSERT INTO `test`.`test4`(`addtime`, `data`, `id`) VALUES ('2016-12-10 13:03:10', 'test', 1); #start 185 end 351
INSERT INTO `test`.`test3`(`addtime`, `data`, `id`) VALUES ('2016-12-10 13:03:22', '中文', 3); #start 378 end 543
INSERT INTO `test`.`test3`(`addtime`, `data`, `id`) VALUES ('2016-12-10 13:03:38', 'english', 4); #start 570 end 736
UPDATE `test`.`test3` SET `addtime`='2016-12-10 12:00:00', `data`='中文', `id`=3 WHERE `addtime`='2016-12-10 13:03:22' AND `data`='中文' AND `id`=3 LIMIT 1; #start 763 end 954
DELETE FROM `test`.`test3` WHERE `addtime`='2016-12-10 13:03:38' AND `data`='english' AND `id`=4 LIMIT 1; #start 981 end 1147
```
**解析出回滚SQL**
```bash
python binlog2sql.py --flashback -h127.0.0.1 -P3306 -uadmin -p'admin' -dtest -ttest4 --start-file='mysql-bin.000002' --start-pos=1079 --end-pos=1247
python binlog2sql.py --flashback -h127.0.0.1 -P3306 -uadmin -p'admin' -dtest -ttest3 --start-file='mysql-bin.000002' --start-pos=763 --end-pos=1147
输出：
DELETE FROM `test`.`test4` WHERE `data`='World' AND `id`=1 AND `data2`='Hello' LIMIT 1; #start 1079 end 1247
INSERT INTO `test`.`test3`(`addtime`, `data`, `id`) VALUES ('2016-12-10 13:03:38', 'english', 4); #start 981 end 1147
UPDATE `test`.`test3` SET `addtime`='2016-12-10 13:03:22', `data`='中文', `id`=3 WHERE `addtime`='2016-12-10 12:00:00' AND `data`='中文' AND `id`=3 LIMIT 1; #start 763 end 954
```
###选项
**mysql连接配置**
@ -171,7 +173,7 @@ mysql> select * from tbl;
###限制
* mysql server必须开启，离线模式下不能解析
* flashback模式，一次性处理的binlog不宜过大，不能超过内存大小(有待优化)
* flashback模式，生成的回滚语句不能超过内存大小(有待优化)
###优点（对比mysqlbinlog）

2
example/mysql-rollback-your-data.md
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@ -1,7 +1,7 @@
MySQL误操作后如何快速回滚
========================
基本上每个跟数据库打交道的程序员（当然也可能是你同事）都会碰一个问题，MySQL误操作后如何快速回滚？比如，delete一张表，忘加限制条件，整张表没了。假如这还是线上环境核心业务数据，那这事就闹大了。误操作后，能快速回滚数据是非常重要的。
基本上每个跟数据库打交道的程序员（当然也可能是你同事）都会碰一个问题，MySQL误操作后如何快速回滚？比如，delete一张表，忘加限制条件，整张表都没了。假如这还是线上环境核心业务数据，那这事就闹大了。误操作后，能快速回滚数据是非常重要的。
binlog2sql快速回滚
===