再次找到这几个文件，恢复
[root@hank-yoon data]# ll /proc/2284/fd | egrep 'ib_|ibdata'
lrwx------. 1 root root 64 Jul 12 15:35 10 -> /export/data/mysql/data/ib_logfile0
lrwx------. 1 root root 64 Jul 12 15:35 11 -> /export/data/mysql/data/ib_logfile1
lrwx------. 1 root root 64 Jul 12 15:35 12 -> /export/data/mysql/data/ib_logfile2
lrwx------. 1 root root 64 Jul 12 15:35 4 -> /export/data/mysql/data/ibdata1 (deleted)
lrwx------. 1 root root 64 Jul 12 15:35 9 -> /export/data/mysql/data/ibdata2 (deleted)
[root@hank-yoon data]# cp /proc/2284/fd/4 /export/data/mysql/data/ibdata1
[root@hank-yoon data]# cp /proc/2284/fd/9 /export/data/mysql/data/ibdata2
修改权限
[root@hank-yoon data]# cd /export/data/mysql/data/
[root@hank-yoon data]# ls -ltr
total 4980844
drwx------. 2 mysql mysql 4096 Sep 30 2015 performance_schema
drwx------. 2 mysql mysql 4096 Sep 30 2015 mysql
-rw-rw----. 1 mysql mysql 56 Sep 30 2015 auto.cnf
drwx------. 2 mysql mysql 4096 Nov 18 2015 test
-rw-r--r--. 1 root root 15886 Dec 24 2015 binlog-rollback.pl
-rwxr-xr-x. 1 root root 2766 Jan 4 2016 modify.pl
-rw-r--r--. 1 root root 2766 Jan 5 2016 rollback.pl
drwx------. 2 mysql mysql 4096 Mar 22 21:54 hank
-rw-rw----. 1 mysql mysql 25 Apr 13 10:04 mysql-bin%Y%M%d.index
-rw-rw----. 1 mysql mysql 143 Apr 13 10:05 mysql-bin%Y%M%d.000001
-rw-rw----. 1 mysql mysql 268435456 Jun 21 10:07 ib_logfile1
drwx------. 2 mysql mysql 4096 Jun 21 15:02 sakila
drwx------. 2 mysql mysql 4096 Jun 29 14:50 yoon
-rw-r--r--. 1 root root 5087 Jun 29 14:53 a.sql
-rw-r--r--. 1 root root 124 Jun 29 14:55 b.sql
-rw-r--r--. 1 root root 47 Jun 29 14:56 c.sql
-rw-rw----. 1 mysql mysql 2027 Jul 12 15:30 mysql-bin.000034
-rw-rw----. 1 mysql mysql 120 Jul 12 15:30 mysql-bin.000035
-rw-rw----. 1 mysql mysql 38 Jul 12 15:30 mysql-bin.index
-rw-rw----. 1 mysql mysql 268435456 Jul 12 15:30 ib_logfile2
-rw-rw----. 1 mysql mysql 268435456 Jul 12 15:30 ib_logfile0
-rw-r-----. 1 root root 2147483648 Jul 12 15:55 ibdata1
-rw-r-----. 1 root root 2147483648 Jul 12 15:55 ibdata2
[root@hank-yoon data]# chown -R mysql.mysql ibdata1 ibdata2
重启登录数据库
[root@hank-yoon data]# service mysql restart
Shutting down MySQL.. SUCCESS!
Starting MySQL... SUCCESS!
[root@hank-yoon data]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.26-log Source distribution
Copyright (c) 2000, 2015, 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.