对于MySQL数据库的innodb引擎的数据库中,由于误操作删除表,或者由于sqldump自动生成语句含drop table create table语句导致数据丢失,在没有覆盖的情况下,可以实现完美恢复
创建测试表
mysql> CREATE TABLE recover.`t_drop` (
-> `messageId` varchar(30) NOT NULL,
-> `msgContent` varchar(1000) default NULL,
-> `scheduleDate` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
-> `deliverState` int(1) default NULL,
-> PRIMARY KEY (`messageId`)
-> ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
Query OK, 0 rows affected (0.00 sec)
mysql> insert into recover.t_drop select messageId,msgContent,scheduleDate,deliverState from sms_send_record;
Query OK, 11 rows affected (0.00 sec)
Records: 11 Duplicates: 0 Warnings: 0
mysql> select * from recover.`t_drop`;
+--------------------+----------------------------------------------------------------------------------+---------------------+--------------+
| messageId | msgContent | scheduleDate | deliverState |
+--------------------+----------------------------------------------------------------------------------+---------------------+--------------+
| 10235259536125650 | 尊敬的用户您好：您的手机验证码为474851如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
| 10235353811295807 | 尊敬的用户您好：您的手机验证码为444632如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
| 102354211240398235 | 尊敬的用户您好：您的手机验证码为478503如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
| 102354554052884567 | 尊敬的用户您好：您的手机验证码为216825如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
| 132213454294519126 | 尊敬的用户您好：您的手机验证码为854812如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
| 82329022242584577 | 尊敬的用户您好：您的手机验证码为253127如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
| 82329022242584581 | 尊敬的用户您好：您的手机验证码为253127如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
| 8233400415607376 | 尊敬的用户您好：您的手机验证码为338470如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
| 82334502212106951 | 尊敬的用户您好：您的手机验证码为916515如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
| 82339012756833423 | 尊敬的用户您好：您的手机验证码为396108如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
| 8234322198577796 | 尊敬的用户您好：您的手机验证码为935297如非本人操作，请拨打奥斯卡客服：400-620-757 | 2010-01-01 00:00:00 | 0 |
+--------------------+----------------------------------------------------------------------------------+---------------------+--------------+
11 rows in set (0.00 sec)
mysql> checksum table t_drop;
+-----------------+-----------+
| Table | Checksum |
+-----------------+-----------+
| recover.t_drop | 920719058 |
+-----------------+-----------+
1 row in set (0.00 sec)
删除测试表,后续用来恢复
mysql> drop table recover.t_drop;
Query OK, 0 rows affected (0.00 sec)
解析ibdata文件
[root@web103 mysql_recovery]# ./stream_parser -f /var/lib/mysql/ibdata1
Opening file: /var/lib/mysql/ibdata1
File information:
ID of device containing file: 2049
inode number: 1344553
protection: 100660 (regular file)
number of hard links: 1
user ID of owner: 27
group ID of owner: 27
device ID (if special file): 0
blocksize for filesystem I/O: 4096
number of blocks allocated: 463312
time of last access: 1440825416 Sat Aug 29 13:16:56 2015
time of last modification: 1440855835 Sat Aug 29 21:43:55 2015
time of last status change: 1440855835 Sat Aug 29 21:43:55 2015
total size, in bytes: 236978176 (226.000 MiB)
Size to process: 236978176 (226.000 MiB)
Opening file: /var/lib/mysql/ibdata1
File information:
ID of device containing file: 2049
inode number: 1344553
protection: 100660 (regular file)
number of hard links: 1
user ID of owner: 27
group ID of owner: 27
device ID (if special file): 0
blocksize for filesystem I/O: 4096
number of blocks allocated: 463312
time of last access: 1440825416 Sat Aug 29 13:16:56 2015
time of last modification: 1440855835 Sat Aug 29 21:43:55 2015
time of last status change: 1440855835 Sat Aug 29 21:43:55 2015
total size, in bytes: 236978176 (226.000 MiB)
Size to process: 236978176 (226.000 MiB)
Opening file: /var/lib/mysql/ibdata1
File information:
ID of device containing file: 2049
inode number: 1344553
protection: 100660 (regular file)
number of hard links: 1
user ID of owner: 27
group ID of owner: 27
device ID (if special file): 0
blocksize for filesystem I/O: 4096
number of blocks allocated: 463312
time of last access: 1440825416 Sat Aug 29 13:16:56 2015
time of last modification: 1440855835 Sat Aug 29 21:43:55 2015
time of last status change: 1440855835 Sat Aug 29 21:43:55 2015
total size, in bytes: 236978176 (226.000 MiB)
Size to process: 236978176 (226.000 MiB)
Opening file: /var/lib/mysql/ibdata1
File information:
ID of device containing file: 2049
inode number: 1344553
protection: 100660 (regular file)
number of hard links: 1
user ID of owner: 27
group ID of owner: 27
device ID (if special file): 0
blocksize for filesystem I/O: 4096
number of blocks allocated: 463312
time of last access: 1440825416 Sat Aug 29 13:16:56 2015
time of last modification: 1440855835 Sat Aug 29 21:43:55 2015
time of last status change: 1440855835 Sat Aug 29 21:43:55 2015
total size, in bytes: 236978176 (226.000 MiB)
Size to process: 236978176 (226.000 MiB)
Opening file: /var/lib/mysql/ibdata1
File information:
ID of device containing file: 2049
inode number: 1344553
protection: 100660 (regular file)
number of hard links: 1
user ID of owner: 27
group ID of owner: 27
device ID (if special file): 0
blocksize for filesystem I/O: 4096
number of blocks allocated: 463312
time of last access: 1440825416 Sat Aug 29 13:16:56 2015
time of last modification: 1440855835 Sat Aug 29 21:43:55 2015
time of last status change: 1440855835 Sat Aug 29 21:43:55 2015
total size, in bytes: 236978176 (226.000 MiB)
Size to process: 236978176 (226.000 MiB)
Opening file: /var/lib/mysql/ibdata1
File information:
ID of device containing file: 2049
inode number: 1344553
protection: 100660 (regular file)
number of hard links: 1
user ID of owner: 27
group ID of owner: 27
device ID (if special file): 0
blocksize for filesystem I/O: 4096
number of blocks allocated: 463312
time of last access: 1440825416 Sat Aug 29 13:16:56 2015
time of last modification: 1440855835 Sat Aug 29 21:43:55 2015
time of last status change: 1440855835 Sat Aug 29 21:43:55 2015
total size, in bytes: 236978176 (226.000 MiB)
Size to process: 236978176 (226.000 MiB)
Opening file: /var/lib/mysql/ibdata1
File information:
ID of device containing file: 2049
inode number: 1344553
protection: 100660 (regular file)
number of hard links: 1
user ID of owner: 27
group ID of owner: 27
device ID (if special file): 0
blocksize for filesystem I/O: 4096
number of blocks allocated: 463312
time of last access: 1440855928 Sat Aug 29 21:45:28 2015
time of last modification: 1440855835 Sat Aug 29 21:43:55 2015
time of last status change: 1440855835 Sat Aug 29 21:43:55 2015
total size, in bytes: 236978176 (226.000 MiB)
Size to process: 236978176 (226.000 MiB)
Opening file: /var/lib/mysql/ibdata1
File information:
ID of device containing file: 2049
inode number: 1344553
protection: 100660 (regular file)
number of hard links: 1
user ID of owner: 27
group ID of owner: 27
device ID (if special file): 0
blocksize for filesystem I/O: 4096
number of blocks allocated: 463312
time of last access: 1440855928 Sat Aug 29 21:45:28 2015
time of last modification: 1440855835 Sat Aug 29 21:43:55 2015
time of last status change: 1440855835 Sat Aug 29 21:43:55 2015
total size, in bytes: 236978176 (226.000 MiB)
Size to process: 236978176 (226.000 MiB)
Worker(1): 56.64% done. 2015-08-29 21:45:30 ETA(in 00:00:01). Processing speed: 8.000 MiB/sec
Worker(0): 56.64% done. 2015-08-29 21:45:30 ETA(in 00:00:01). Processing speed: 8.000 MiB/sec
Worker(4): 56.64% done. 2015-08-29 21:45:30 ETA(in 00:00:01). Processing speed: 8.000 MiB/sec
Worker(3): 56.64% done. 2015-08-29 21:45:30 ETA(in 00:00:01). Processing speed: 8.000 MiB/sec
Worker(2): 56.64% done. 2015-08-29 21:45:30 ETA(in 00:00:01). Processing speed: 8.000 MiB/sec
Worker(7): 56.64% done. 2015-08-29 21:45:30 ETA(in 00:00:01). Processing speed: 8.000 MiB/sec
Worker(5): 56.64% done. 2015-08-29 21:45:30 ETA(in 00:00:01). Processing speed: 8.000 MiB/sec
Worker(6): 56.64% done. 2015-08-29 21:45:30 ETA(in 00:00:01). Processing speed: 8.000 MiB/sec
All workers finished in 1 sec
恢复mysql字典
[root@web103 mysql_recovery]# ./recover_dictionary.sh
Generating dictionary tables dumps... OK
Creating test database ... OK
Creating dictionary tables in database test:
SYS_TABLES ... OK
SYS_COLUMNS ... OK
SYS_INDEXES ... OK
SYS_FIELDS ... OK
All OK
Loading dictionary tables data:
SYS_TABLES ... 162 recs OK
SYS_COLUMNS ... 1247 recs OK
SYS_INDEXES ... 216 recs OK
SYS_FIELDS ... 411 recs OK
All OK
[root@web103 mysql_recovery]# mysql test
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 10162
Server version: 5.0.95 Source distribution
Copyright (c) 2000, 2011, 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> select * from SYS_TABLES WHERE name like 'recover%';
+-------------------------+-----+--------+------+--------+---------+--------------+-------+
| NAME | ID | N_COLS | TYPE | MIX_ID | MIX_LEN | CLUSTER_NAME | SPACE |
+-------------------------+-----+--------+------+--------+---------+--------------+-------+
| recover/#sql-64a9_1f6d | 120 | 8 | 1 | 0 | 0 | | 0 |
| recover/#sql2-64a9-1f6d | 115 | 8 | 1 | 0 | 0 | | 0 |
| recover/t_delete | 74 | 2 | 1 | 0 | 0 | | 0 |
| recover/t_delete1 | 84 | 2 | 1 | 0 | 0 | | 0 |
| recover/t_drop | 125 | 4 | 1 | 0 | 0 | | 0 |
| recover/t_truncate | 120 | 8 | 1 | 0 | 0 | | 0 |
| recover/t_xifenfei | 75 | 2 | 1 | 0 | 0 | | 0 |
| recover/zx_users | 89 | 85 | 1 | 0 | 0 | | 0 |
+-------------------------+-----+--------+------+--------+---------+--------------+-------+
8 rows in set (0.00 sec)
mysql> select * from SYS_INDEXES WHERE TABLE_ID=125;
+----------+-----+---------+----------+------+-------+------------+
| TABLE_ID | ID | NAME | N_FIELDS | TYPE | SPACE | PAGE_NO |
+----------+-----+---------+----------+------+-------+------------+
| 125 | 142 | PRIMARY | 1 | 3 | 0 | 4294967295 |
+----------+-----+---------+----------+------+-------+------------+
1 row in set (0.00 sec)
恢复被删除表记录
[root@web103 mysql_recovery]# ./c_parser -5f pages-ibdata1/FIL_PAGE_INDEX/0000000000000142.page -t dictionary/t_drop.sql >dumps/default/t_drop 2>2.sql
[root@web103 mysql_recovery]# more dumps/default/t_drop
-- Page id: 9860, Format: COMPACT, Records list: Valid, Expected records: (11 11)
00000099F9F2 80000026800110 t_drop "10235259536125650" "尊敬的用户您好：您的手机验证码为474851如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
00000099F9F2 80000026800129 t_drop "10235353811295807" "尊敬的用户您好：您的手机验证码为444632如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
00000099F9F2 80000026800142 t_drop "102354211240398235" "尊敬的用户您好：您的手机验证码为478503如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
00000099F9F2 8000002680015C t_drop "102354554052884567" "尊敬的用户您好：您的手机验证码为216825如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
00000099F9F2 80000026800176 t_drop "132213454294519126" "尊敬的用户您好：您的手机验证码为854812如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
00000099F9F2 80000026800190 t_drop "82329022242584577" "尊敬的用户您好：您的手机验证码为253127如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
00000099F9F2 800000268001A9 t_drop "82329022242584581" "尊敬的用户您好：您的手机验证码为253127如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
00000099F9F2 800000268001C2 t_drop "8233400415607376" "尊敬的用户您好：您的手机验证码为338470如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
00000099F9F2 800000268001DA t_drop "82334502212106951" "尊敬的用户您好：您的手机验证码为916515如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
00000099F9F2 800000268001F3 t_drop "82339012756833423" "尊敬的用户您好：您的手机验证码为396108如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
00000099F9F2 8000002680020C t_drop "8234322198577796" "尊敬的用户您好：您的手机验证码为935297如非本人操作，请拨打奥斯卡客服：400-620-7575。" "2010-01-01 00:00:00" 0
-- Page id: 9860, Found records: 11, Lost records: NO, Leaf page: YES
恢复数据入库
mysql> source dictionary/t_drop.sql
Query OK, 0 rows affected (0.00 sec)
mysql> source 2.sql
Query OK, 0 rows affected (0.00 sec)
Query OK, 11 rows affected (0.00 sec)
Records: 11 Deleted: 0 Skipped: 0 Warnings: 0
mysql> checksum table t_drop;
+-----------------+-----------+
| Table | Checksum |
+-----------------+-----------+
| recover.t_drop | 920719058 |
+-----------------+-----------+
1 row in set (0.00 sec)
至此实现删除数据完美恢复
