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InnoDB: Operating system error number 2 in a file operation.File operation call: 'create'.

2011-01-18 09:54:35| 分类：工作日志 | 标签： |举报 |字号大中小订阅

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mysql启动提示以下出错信息：

110118 09:37:12 mysqld started
110118 9:37:13 InnoDB: Operating system error number 2 in a file operation.
InnoDB: The error means the system cannot find the path specified.
InnoDB: If you are installing InnoDB, remember that you must create
InnoDB: directories yourself, InnoDB does not create them.
InnoDB: File name /usr/local/mysql/var-ccms-all/ibdata1
InnoDB: File operation call: 'create'.
InnoDB: Cannot continue operation.
110118 09:37:13 mysqld ended

解决方法：

1.mysql数据库目录位于

[root@SHF_CCMSBAK_ALL var-ccms-all]# pwd
/var/lib/mysql/var-ccms-all

2.但数据库配置为以下：

[mysqld2]
port = 3307
socket = /tmp/mysql-ccms-all.sock
pid-file = /var/lib/mysql/var-ccms-all/mysql.pid
datadir = /var/lib/mysql/var-ccms-all
auto_increment_offset = 2
auto_increment_increment = 2

relay-log=/usr/local/mysql/var-ccms-all/relay-binlog
relay-log-index=/usr/local/mysql/var-ccms-all/relay-log-index
relay-log-info-file=/usr/local/mysql/var-ccms-all/relay-log.info

innodb_data_home_dir = /usr/local/mysql/var-ccms-all/
innodb_data_file_path = ibdata1:10M:autoextend
innodb_log_group_home_dir = /usr/local/mysql/var-ccms-all/
innodb_log_arch_dir = /usr/local/mysql/var-ccms-all/
innodb_additional_mem_pool_size = 16M
innodb_buffer_pool_size = 512M

innodb_data数据目录与数据库根目录不一致，造成目录读取权限有问题，不能成功创建文件，所以启动数据库失败！！

修改成一致后，问题解决，成功启动！

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