MySQL 无备份 drop 恢复

昨天晚上接到一个网络服务请求，由于不小心点击了自己产品软件上面的清空数据功能(这个工具确实需要小心,在Oracle恢复案例中,也有xx企业erp该功能导致数据被删除请求恢复)，导致MySQL数据库被直接drop database掉了，之前没有做任何备份，只是发生故障之后，他们立即封存现场，备份出来了ibdata1文件。接到请求之后，通过让其把ibdata1文件发给过来，通过MySQL recovery工具进行分析恢复，经过6个小时的处理，基本上实现核心数据0丢失.
解析ibdata1(innodb文件)

[root@localhost recovery_MySQL]# ./stream_parser -f /tmp/ibdata1 Opening file: /tmp/ibdata1 File information:   ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 user ID of owner:                        0 group ID of owner:                       0 device ID (if special file):             0 blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 Opening file: /tmp/ibdata1 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 File information:   time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 ID of device containing file:         2055 inode number:                        97257 protection:                         100644 total size, in bytes:             18874368 (18.000 MiB)   (regular file) number of hard links:                    1 user ID of owner:                        0 group ID of owner:                       0 device ID (if special file):             0 blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 Size to process:                  18874368 (18.000 MiB) Opening file: /tmp/ibdata1 File information:   ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 user ID of owner:                        0 group ID of owner:                       0 device ID (if special file):             0 blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 total size, in bytes:             18874368 (18.000 MiB)   Opening file: /tmp/ibdata1 File information:   Size to process:                  18874368 (18.000 MiB) ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) time of last access:            1440083236 Thu Aug 20 23:07:16 2015 number of hard links:                    1 user ID of owner:                        0 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 group ID of owner:                       0 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 device ID (if special file):             0 blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 total size, in bytes:             18874368 (18.000 MiB)   Size to process:                  18874368 (18.000 MiB) Opening file: /tmp/ibdata1 File information:   ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 user ID of owner:                        0 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 group ID of owner:                       0 device ID (if special file):             0 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 blocksize for filesystem I/O:         4096 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 number of blocks allocated:          36920 Opening file: /tmp/ibdata1 total size, in bytes:             18874368 (18.000 MiB)   File information:   Size to process:                  18874368 (18.000 MiB) ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 user ID of owner:                        0 group ID of owner:                       0 device ID (if special file):             0 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 blocksize for filesystem I/O:         4096 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 number of blocks allocated:          36920 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 Opening file: /tmp/ibdata1 total size, in bytes:             18874368 (18.000 MiB)   File information:   Size to process:                  18874368 (18.000 MiB) ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 user ID of owner:                        0 group ID of owner:                       0 device ID (if special file):             0 blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 Opening file: /tmp/ibdata1 File information:   total size, in bytes:             18874368 (18.000 MiB)   ID of device containing file:         2055 inode number:                        97257 protection:                         100644 Size to process:                  18874368 (18.000 MiB) (regular file) number of hard links:                    1 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 user ID of owner:                        0 group ID of owner:                       0 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 Opening file: /tmp/ibdata1 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 device ID (if special file):             0 File information:   blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 total size, in bytes:             18874368 (18.000 MiB)   ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) Size to process:                  18874368 (18.000 MiB) number of hard links:                    1 user ID of owner:                        0 group ID of owner:                       0 device ID (if special file):             0 blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 Opening file: /tmp/ibdata1 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 File information:   time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 ID of device containing file:         2055 total size, in bytes:             18874368 (18.000 MiB)   inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 user ID of owner:                        0 Size to process:                  18874368 (18.000 MiB) group ID of owner:                       0 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 device ID (if special file):             0 blocksize for filesystem I/O:         4096 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 number of blocks allocated:          36920 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 total size, in bytes:             18874368 (18.000 MiB)   Opening file: /tmp/ibdata1 Size to process:                  18874368 (18.000 MiB) File information:   ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 user ID of owner:                        0 group ID of owner:                       0 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 device ID (if special file):             0 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 total size, in bytes:             18874368 (18.000 MiB)   Size to process:                  18874368 (18.000 MiB) Opening file: /tmp/ibdata1 File information:   ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 user ID of owner:                        0 group ID of owner:                       0 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 device ID (if special file):             0 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 blocksize for filesystem I/O:         4096 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 number of blocks allocated:          36920 total size, in bytes:             18874368 (18.000 MiB)   Opening file: /tmp/ibdata1 File information:   Size to process:                  18874368 (18.000 MiB) ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 user ID of owner:                        0 group ID of owner:                       0 device ID (if special file):             0 blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 total size, in bytes:             18874368 (18.000 MiB)   Opening file: /tmp/ibdata1 File information:   Size to process:                  18874368 (18.000 MiB) ID of device containing file:         2055 inode number:                        97257 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 protection:                         100644 (regular file) time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 number of hard links:                    1 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 user ID of owner:                        0 group ID of owner:                       0 device ID (if special file):             0 blocksize for filesystem I/O:         4096 total size, in bytes:             18874368 (18.000 MiB)   number of blocks allocated:          36920 Size to process:                  18874368 (18.000 MiB) time of last access:            1440083236 Thu Aug 20 23:07:16 2015 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 total size, in bytes:             18874368 (18.000 MiB)   Size to process:                  18874368 (18.000 MiB) Opening file: /tmp/ibdata1 File information:   ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 user ID of owner:                        0 group ID of owner:                       0 device ID (if special file):             0 blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 total size, in bytes:             18874368 (18.000 MiB)   Size to process:                  18874368 (18.000 MiB) Opening file: /tmp/ibdata1 File information:   ID of device containing file:         2055 inode number:                        97257 protection:                         100644 (regular file) number of hard links:                    1 user ID of owner:                        0 group ID of owner:                       0 device ID (if special file):             0 blocksize for filesystem I/O:         4096 number of blocks allocated:          36920 time of last access:            1440083236 Thu Aug 20 23:07:16 2015 time of last modification:      1440062236 Thu Aug 20 17:17:16 2015 time of last status change:     1440081904 Thu Aug 20 22:45:04 2015 total size, in bytes:             18874368 (18.000 MiB)   Size to process:                  18874368 (18.000 MiB) All workers finished in 0 sec   [root@localhost recovery_MySQL]# cd pages-ibdata1 [root@localhost pages-ibdata1]# ls -l total 16 drwxr-xr-x 2 root root 4096 Aug 20 22:53 FIL_PAGE_INDEX drwxr-xr-x 2 root root 4096 Aug 20 22:53 FIL_PAGE_TYPE_BLOB [root@localhost pages-ibdata1]# cd FIL_PAGE_INDEX [root@localhost FIL_PAGE_INDEX]# ls -l total 9924 -rw-r--r-- 1 root root   32768 Aug 20 22:53 0000000000000001.page -rw-r--r-- 1 root root  278528 Aug 20 22:53 0000000000000002.page -rw-r--r-- 1 root root   32768 Aug 20 22:53 0000000000000003.page -rw-r--r-- 1 root root   32768 Aug 20 22:53 0000000000000004.page -rw-r--r-- 1 root root   32768 Aug 20 22:53 0000000000000005.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000011.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000012.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000013.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000014.page -rw-r--r-- 1 root root 2883584 Aug 20 22:53 0000000000000065.page -rw-r--r-- 1 root root  475136 Aug 20 22:53 0000000000000066.page -rw-r--r-- 1 root root  737280 Aug 20 22:53 0000000000000067.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000068.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000069.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000070.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000071.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000072.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000073.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000074.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000075.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000076.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 0000000000000077.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000078.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000079.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000080.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000081.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000082.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000083.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000084.page -rw-r--r-- 1 root root  753664 Aug 20 22:53 0000000000000085.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000086.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000087.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000088.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000089.page -rw-r--r-- 1 root root  901120 Aug 20 22:53 0000000000000110.page -rw-r--r-- 1 root root 2097152 Aug 20 22:53 0000000000000115.page -rw-r--r-- 1 root root   98304 Aug 20 22:53 0000000000000116.page -rw-r--r-- 1 root root   98304 Aug 20 22:53 0000000000000117.page -rw-r--r-- 1 root root   98304 Aug 20 22:53 0000000000000118.page -rw-r--r-- 1 root root   98304 Aug 20 22:53 0000000000000119.page -rw-r--r-- 1 root root   49152 Aug 20 22:53 0000000000000120.page -rw-r--r-- 1 root root   98304 Aug 20 22:53 0000000000000121.page -rw-r--r-- 1 root root   98304 Aug 20 22:53 0000000000000122.page -rw-r--r-- 1 root root   98304 Aug 20 22:53 0000000000000123.page -rw-r--r-- 1 root root   98304 Aug 20 22:53 0000000000000124.page -rw-r--r-- 1 root root   16384 Aug 20 22:53 18446744069414584320.page [root@localhost FIL_PAGE_INDEX]#

分析数据字典

[root@localhost recovery_MySQL]# ./recover_dictionary.sh   Generating dictionary tables dumps... OK Creating test database ... Warning: Using a password on the command line interface can be insecure. OK Creating dictionary tables in database test: SYS_TABLES ... Warning: Using a password on the command line interface can be insecure. OK SYS_COLUMNS ... Warning: Using a password on the command line interface can be insecure. OK SYS_INDEXES ... Warning: Using a password on the command line interface can be insecure. OK SYS_FIELDS ... Warning: Using a password on the command line interface can be insecure. OK All OK Loading dictionary tables data: SYS_TABLES ... Warning: Using a password on the command line interface can be insecure. 34 recs OK SYS_COLUMNS ... Warning: Using a password on the command line interface can be insecure. 3061 recs OK SYS_INDEXES ... Warning: Using a password on the command line interface can be insecure. 206 recs OK SYS_FIELDS ... Warning: Using a password on the command line interface can be insecure. 206 recs OK All OK

关于MySQL数据字典恢复,也可以参考另外一篇文章:使用工具直接抽取MySQL数据字典

查看数据库中记录情况

[root@localhost recovery_MySQL]# MySQL -uroot -p123456 Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 34954 Server version: 5.6.21 MySQL Community Server (GPL)   Copyright (c) 2000, 2014, 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> 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> show tables; +----------------+ | Tables_in_test | +----------------+ | SYS_COLUMNS    | | SYS_FIELDS     | | SYS_INDEXES    | | SYS_TABLES     | +----------------+ 4 rows in set (0.00 sec)   MySQL> SELECT NAME,ID from SYS_TABLES; +-------------------------+----+ | NAME                    | ID | +-------------------------+----+ | cnywmcom/zx_account_log | 31 | | cnywmcom/zx_area_code   | 32 | | cnywmcom/zx_goods_group | 33 | | cnywmcom/zx_manage_type | 34 | | cnywmcom/zx_order_goods | 35 | | cnywmcom/zx_order_info  | 36 | | cnywmcom/zx_param       | 37 | | cnywmcom/zx_users       | 46 | | cnywmcom/zx_user_type   | 38 | | SYS_FOREIGN             | 11 | | SYS_FOREIGN_COLS        | 12 | +-------------------------+----+ 11 rows in set (0.00 sec)   MySQL> select * from SYS_INDEXES; +----------+-----+-----------------+----------+------+-------+---------+ | TABLE_ID | ID  | NAME            | N_FIELDS | TYPE | SPACE | PAGE_NO | +----------+-----+-----------------+----------+------+-------+---------+ |       11 |  11 | ID_IND          |        1 |    3 |     0 |      46 | |       11 |  12 | FOR_IND         |        1 |    0 |     0 |      47 | |       11 |  13 | REF_IND         |        1 |    0 |     0 |      48 | |       12 |  14 | ID_IND          |        2 |    3 |     0 |      49 | |       31 |  65 | PRIMARY         |        1 |    3 |     0 |      50 | |       31 |  66 | user_id         |        1 |    0 |     0 |     216 | |       32 |  67 | PRIMARY         |        1 |    3 |     0 |      52 | |       33 |  68 | PRIMARY         |        1 |    3 |     0 |     205 | |       34 |  69 | PRIMARY         |        1 |    3 |     0 |      54 | |       35 |  70 | PRIMARY         |        1 |    3 |     0 |      55 | |       35 |  71 | order_id        |        1 |    0 |     0 |      56 | |       35 |  72 | goods_id        |        1 |    0 |     0 |      57 | |       36 |  73 | PRIMARY         |        1 |    3 |     0 |      59 | |       36 |  74 | order_sn        |        1 |    2 |     0 |      60 | |       36 |  75 | user_id         |        1 |    0 |     0 |      61 | |       36 |  76 | order_status    |        1 |    0 |     0 |      62 | |       36 |  77 | shipping_status |        1 |    0 |     0 |      63 | |       36 |  78 | pay_status      |        1 |    0 |     0 |     192 | |       36 |  79 | shipping_id     |        1 |    0 |     0 |     193 | |       36 |  80 | pay_id          |        1 |    0 |     0 |     194 | |       36 |  81 | extension_code  |        2 |    0 |     0 |     195 | |       36 |  82 | agency_id       |        1 |    0 |     0 |     203 | |       37 |  83 | PRIMARY         |        1 |    3 |     0 |     196 | |       38 |  84 | PRIMARY         |        1 |    3 |     0 |     206 | |       46 | 120 | PRIMARY         |        1 |    3 |     0 |      58 | |       46 | 121 | user_name       |        1 |    2 |     0 |     256 | |       46 | 122 | email           |        1 |    0 |     0 |     257 | |       46 | 123 | parent_id       |        1 |    0 |     0 |     258 | |       46 | 124 | flag            |        1 |    0 |     0 |     259 | +----------+-----+-----------------+----------+------+-------+---------+ 29 rows in set (0.00 sec)

通过这里，我们就可以明确的知道，我们需要恢复的表的page是多少了，这里举例说明恢复表cnywmcom.zx_account_log,我们需要去分析65号page

分析表恢复

[root@localhost recovery_MySQL]# ./c_parser -5f pages-ibdata1/FIL_PAGE_INDEX/0000000000000065.page -t dictionary/zx_account_log.sql|more -- Page id: 223, Format: COMPACT, Records list: Invalid, Expected records: (0 7) 0B0C2000101C    55000230000000  zx_account_log  2979181 270888  "0"0"0.00"      "0.00"  "0.00"  2147483649      ""      0       ""      "0.00"  "-10643256.27"  "06."   "06."   "0782 7251.51"        "0.5"   "0.5"   "0.5"   "0.5" 000000042228    00000001040135  zx_account_log  561     1       "0.00"  "0.00"  "0.00"  "1.00"  "0.00"  1436840718      "会员注册"      99      "13818289939"   "1.00"  "0.00"  "0.00"  "0.00 "       "0.00"  "0.00"  "0.00"  "0.00"  "0.00" 000000042228    0000000104015A  zx_account_log  562     136     "0.00"  "0.00"  "0.00"  "1.00"  "0.00"  1436841067      "会员注册"      99      "17828025855"   "1.00"  "0.00"  "0.00"  "0.00 "       "0.00"  "0.00"  "0.00"  "0.00"  "0.00" 000000042228    0000000104017F  zx_account_log  563     137     "0.00"  "0.00"  "0.00"  "1.00"  "0.00"  1436842239      "会员注册"      99      "18617157667"   "1.00"  "0.00"  "0.00"  "0.00 "       "0.00"  "0.00"  "0.00"  "0.00"  "0.00" 000000042228    000000010401A4  zx_account_log  564     139     "0.00"  "0.00"  "0.00"  "1.00"  "0.00"  1436846738      "会员注册"      99      "18113070688"   "1.00"  "0.00"  "0.00"  "0.00 "       "0.00"  "0.00"  "0.00"  "0.00"  "0.00" 000000042228    000000010401C9  zx_account_log  565     1       "0.00"  "0.00"  "0.00"  "1.00"  "0.00"  1436848523      "会员注册"      99      "13623646573"   "1.00"  "0.00"  "0.00"  "0.00 "       "0.00"  "0.00"  "0.00"  "0.00"  "0.00"

至此该表的数据已经恢复出来,剩下任务就是把数据保存为文件,并且导入到新库中.然后依次处理相关表.至此完成这次drop database的恢复.在恢复过程中,遇到不少坑,比如有些记录在对应的page中无法找到,需要进行额外处理.对于乱码问题需要进一步处理等.通过一系列的恢复,给客户恢复了所有核心表,实现核心数据0丢失.通过这次的恢复,已经证明我们不光是Oracle恢复中的行业强者,在MySQL数据库的各种故障中,我们也有立足之地.如果有MySQL数据库的恢复(误删除数据/delete,误删除表/drop table,误截断表/truncate table,误删除数据库/drop database,MySQL不能启动,ibdata1文件损坏/丢失等MySQL各种恢复)请求,如果您遇到MySQL恢复问题无法自行解决,请联系专业数据库恢复及服务提供专业服务,最大程度减小您的损失：