The error means mysqld does not have the access rights to the directory.

098098

错误提示：

1	The error means mysqld does not have the access rights to the directory.

tail /var/log/mysqld.log

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

151125 18:21:50 mysqld_safe Starting mysqld daemon with databases from /oradata/mysql 151125 18:21:50 [Note] /usr/sbin/mysqld (mysqld 5.5.46) starting as process 57423 ... 151125 18:21:50 [Warning] Can't create test file /oradata/mysql/DPI-XZ-cloud-db-1.lower-test 151125 18:21:50 [Warning] Can't create test file /oradata/mysql/DPI-XZ-cloud-db-1.lower-test 151125 18:21:50 [Note] Plugin 'FEDERATED' is disabled. 151125 18:21:50 InnoDB: The InnoDB memory heap is disabled 151125 18:21:50 InnoDB: Mutexes and rw_locks use GCC atomic builtins 151125 18:21:50 InnoDB: Compressed tables use zlib 1.2.3 151125 18:21:50 InnoDB: Using Linux native AIO 151125 18:21:50 InnoDB: Initializing buffer pool, size = 4.0G 151125 18:21:50 InnoDB: Completed initialization of buffer pool 151125 18:21:50  InnoDB: Operating system error number 13 in a file operation. InnoDB: The error means mysqld does not have the access rights to InnoDB: the directory. InnoDB: File name ./ibdata1 InnoDB: File operation call: 'create'. InnoDB: Cannot continue operation. 151125 18:21:50 mysqld_safe mysqld from pid file /oradata/mysql/DPI-XZ-cloud-db-1.pid ended

解决方案：setenforce 0