在 Win7 盒子上。
我下载了 mysql-5.7.9 并尝试将其作为其自包含实例与已经运行的旧版本的另一个实例一起运行。
我使用以下命令安装了一项新服务：
"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"
我不确定这是否是解决问题的正确命令，因为我不认为它使用我的选项文件，但这是我运行时看到的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'
...
答案1
今天晚上我遇到了同样的问题，设置了一个新的 MySQL 服务器。我不知道 MySQL 从 5.7.7 开始不提供初始数据（比较MySQL 5.7 参考 - 2.3.5.4 初始化数据目录）。由于您收到相同的错误，我猜想您没有现有数据（预初始化帐户），因此请尝试运行
mysqld --initialize --console