mysql: Myflash闪回工具测试.

安装

[root@test3 MyFlash-master]# cd /opt/mysql/MyFlash-master
[root@test3 MyFlash-master]# gcc -w  `pkg-config --cflags --libs glib-2.0` source/binlogParseGlib.c  -o binary/flashback

测试

创建测试表(5.7主从架构。主上创建)

mysql> use test;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> CREATE TABLE `testFlashback2` (
    ->   `id` int(11) NOT NULL AUTO_INCREMENT,
    ->   `nameShort` varchar(20) DEFAULT NULL,
    ->   `nameLong` varchar(260) DEFAULT NULL,
    ->   `amount` decimal(19,9) DEFAULT NULL,
    ->   `amountFloat` float DEFAULT NULL,
    ->   `amountDouble` double DEFAULT NULL,
    ->   `createDatetime6` datetime(6) DEFAULT NULL,
    ->   `createDatetime` datetime DEFAULT NULL,
    ->   `createTimestamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    ->   `nameText` text,
    ->   `nameBlob` blob,
    ->   `nameMedium` mediumtext,
    ->   PRIMARY KEY (`id`)
    -> ) ENGINE=InnoDB;
Query OK, 0 rows affected (0.11 sec)

插入回滚测试

mysql> insert into testFlashback2(nameShort,nameLong,amount,amountFloat,amountDouble,createDatetime6,createDatetime,createTimestamp,nameText,nameBlob,nameMedium) values('aaa','bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',10.5,10.6,10.7,'2017-10-26 10:00:00','2017-10-26 10:00:00','2017-10-26 10:00:00','cccc','dddd','eee');
Query OK, 1 row affected (0.00 sec)

mysql> insert into testFlashback2(nameShort,nameLong,amount,amountFloat,amountDouble,createDatetime6,createDatetime,createTimestamp,nameText,nameBlob,nameMedium) values('aaa','bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',10.5,10.6,10.7,'2017-10-26 10:00:00','2017-10-26 10:00:00','2017-10-26 10:00:00','cccc','dddd','eee');
Query OK, 1 row affected (0.00 sec)

确认回滚pos

mysql> show master status;
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set                                                                      |
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
| mysql-bin.000098 |     2631 |              |                  | 65143c8f-b243-11e8-9428-000c296f1213:1-1076,
ac5c0c9e-a938-11e8-bd29-000c29343240:1-22 |
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
mysql> flush binary logs;
Query OK, 0 rows affected (0.00 sec)

生成回滚的二进制文件

[root@test3 MyFlash-master]# ./binary/flashback --binlogFileNames=/dbdata/mysql/my57_3307/log/binlog/mysql-bin.000098 --start-position=1640 --stop-position=2631 --outBinlogFileNameBase=test_insert_to_delete.flashback

应用到主库

[root@test3 MyFlash-master]# /usr/local/mysql57/bin/mysqlbinlog --skip-gtids test_insert_to_delete.flashback.flashback | /usr/local/mysql57/bin/mysql -uroot -poracle -S /var/run/mysqld/my57_3307.sock
mysql: [Warning] Using a password on the command line interface can be insecure.

从库上检查数据

mysql> select count(*) from testFlashback2;
+----------+
| count(*) |
+----------+
|        0 |
+----------+
1 row in set (0.00 sec)