在Win7上。
我下载了mysql-5.7.9，并且试图将它作为自己包含的实例一起运行，而另一个已经运行的旧版本的实例。
我用这个命令安装了一个新的服务：
"C:\mysql-5.7.9\bin\mysqld.exe" --install mysql579 --defaults-file="C:\mysql-5.7.9\bin\my.cnf" 这是my.cnf：
[client] port = 3307 socket = mysql579 [mysqld] basedir="C:/mysql-5.7.9" tmpdir="C:/mysql-5.7.9/tmp" datadir="C:/mysql-5.7.9/data" port = 3307 socket = mysql579 character-set-server = latin1 collation-server = latin1_general_ci server-id = 2 [WinMySQLadmin] Server="C:/mysql-5.7.9/bin/mysqld.exe"
我不知道这是否是正确的命令来解决这个问题，因为我不认为它使用我的选项文件，但这是我看到当我运行C:\mysql-5.7.9\bin>mysqld.exe --defaults-file="C:\mysql-5.7.9\bin\my.cnf" --standalone --console
2015-12-16T20:59:53.098442Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server optio n (see documentation for more details). 2015-12-16T20:59:53.098442Z 0 [Warning] Insecure configuration for --secure-file-priv: Current value does not restrict location of generated files. Co nsider setting it to a valid, non-empty path. 2015-12-16T20:59:53.098442Z 0 [Note] mysqld.exe (mysqld 5.7.9) starting as process 68544 ... 2015-12-16T20:59:53.114042Z 0 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions 2015-12-16T20:59:53.114042Z 0 [Note] InnoDB: Uses event mutexes 2015-12-16T20:59:53.114042Z 0 [Note] InnoDB: Memory barrier is not used 2015-12-16T20:59:53.114042Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3 2015-12-16T20:59:53.114042Z 0 [Note] InnoDB: Number of pools: 1 2015-12-16T20:59:53.114042Z 0 [Note] InnoDB: Not using CPU crc32 instructions 2015-12-16T20:59:53.145242Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M 2015-12-16T20:59:53.160842Z 0 [Note] InnoDB: Completed initialization of buffer pool 2015-12-16T20:59:53.238843Z 0 [Note] InnoDB: Highest supported file format is Barracuda. 2015-12-16T20:59:53.441644Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables 2015-12-16T20:59:53.441644Z 0 [Note] InnoDB: Setting file '.\ibtmp1' size to 12 MB. Physically writing the file full; Please wait ... 2015-12-16T20:59:53.628845Z 0 [Note] InnoDB: File '.\ibtmp1' size is now 12 MB. 2015-12-16T20:59:53.628845Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active. 2015-12-16T20:59:53.628845Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active. 2015-12-16T20:59:53.628845Z 0 [Note] InnoDB: 5.7.9 started; log sequence number 1210148 2015-12-16T20:59:53.628845Z 0 [Note] InnoDB: Loading buffer pool(s) from C:\mysql-5.7.9\data\ib_buffer_pool 2015-12-16T20:59:53.628845Z 0 [Note] Plugin 'FEDERATED' is disabled. 2015-12-16T20:59:53.628845Z 0 [Note] InnoDB: not started mysqld: Table 'mysql.plugin' doesn't exist 2015-12-16T20:59:53.628845Z 0 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 2015-12-16T20:59:53.628845Z 0 [Note] InnoDB: Buffer pool(s) load completed at 151216 15:59:53 2015-12-16T20:59:53.628845Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2015-12-16T20:59:53.628845Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key 2015-12-16T20:59:53.628845Z 0 [Note] Server hostname (bind-address): '*'; port: 3307 2015-12-16T20:59:53.644445Z 0 [Note] IPv6 is available. 2015-12-16T20:59:53.644445Z 0 [Note] - '::' resolves to '::'; 2015-12-16T20:59:53.644445Z 0 [Note] Server socket created on IP: '::'. 2015-12-16T20:59:53.644445Z 0 [Warning] Failed to open optimizer cost constant tables 2015-12-16T20:59:53.644445Z 0 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist 2015-12-16T20:59:53.644445Z 0 [ERROR] Aborting 2015-12-16T20:59:53.644445Z 0 [Note] Binlog end 2015-12-16T20:59:53.644445Z 0 [Note] Shutting down plugin 'ngram' ...
今天晚上我也有同样的问题，build立一个新的MySQL服务器。 我不知道，MySQL自5.7.7以来没有提供初始数据（比较MySQL 5.7参考 – 2.3.5.4初始化数据目录 ）。 因为你得到相同的错误，我想你没有现有的数据（预初始化帐户），所以尝试运行
mysqld --initialize --console