mysql 错误，mysqli_real_connect() : (HY000/2002): No such file or directory

Question

这个问题已经有答案了:

mysqli_real_connect(): (HY000/2002): No such file or directory (19 个回答)

已关闭 9 个月前。

我的 macOS 关闭后遇到问题，mysql 服务器无法启动，并且 phpMyAdmin 显示此错误:

mysqli_real_connect(): (HY000/2002): No such file or directory

Apache 服务器在 MAMP 上正常启动，但 mysql 已“死机”。我认为问题出在db中，但我无法解决它。

    170409 01:33:41 mysqld_safe Logging to '/Applications/MAMP/db/mysql56/Apples-MacBook-Pro.local.err'.
170409 01:33:41 mysqld_safe Starting mysqld daemon with databases from /Applications/MAMP/db/mysql56
2017-04-09 01:33:41 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-04-09 01:33:41 0 [Note] --secure-file-priv is set to NULL. Operations related to importing and exporting data are disabled
2017-04-09 01:33:41 0 [Note] /Applications/MAMP/Library/bin/mysqld (mysqld 5.6.35) starting as process 5683 ...
2017-04-09 01:33:41 5683 [Warning] Setting lower_case_table_names=2 because file system for /Applications/MAMP/db/mysql56/ is case insensitive
2017-04-09 01:33:41 5683 [Note] Plugin 'FEDERATED' is disabled.
2017-04-09 01:33:41 5683 [Note] InnoDB: Using atomics to ref count buffer pool pages
2017-04-09 01:33:41 5683 [Note] InnoDB: The InnoDB memory heap is disabled
2017-04-09 01:33:41 5683 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-04-09 01:33:41 5683 [Note] InnoDB: Memory barrier is not used
2017-04-09 01:33:41 5683 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-04-09 01:33:41 5683 [Note] InnoDB: Not using CPU crc32 instructions
2017-04-09 01:33:41 5683 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2017-04-09 01:33:41 5683 [Note] InnoDB: Completed initialization of buffer pool
2017-04-09 01:33:41 5683 [Note] InnoDB: Highest supported file format is Barracuda.
2017-04-09 01:33:41 5683 [Note] InnoDB: Log scan progressed past the checkpoint lsn 8763118
2017-04-09 01:33:41 5683 [Note] InnoDB: Database was not shutdown normally!
2017-04-09 01:33:41 5683 [Note] InnoDB: Starting crash recovery.
2017-04-09 01:33:41 5683 [Note] InnoDB: Reading tablespace information from the .ibd files...
2017-04-09 01:33:41 5683 [ERROR] InnoDB: Attempted to open a previously opened tablespace. Previous tablespace mysql/slave_worker_info uses space ID: 5 at filepath: ./mysql/slave_worker_info.ibd. Cannot open tablespace wordpress/wp_term_taxonomy which uses space ID: 5 at filepath: ./wordpress/wp_term_taxonomy.ibd
2017-04-09 01:33:41 7fffd6a0a3c0  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: Error: could not open single-table tablespace file ./wordpress/wp_term_taxonomy.ibd
InnoDB: We do not continue the crash recovery, because the table may become
InnoDB: corrupt if we cannot apply the log records in the InnoDB log to it.
InnoDB: To fix the problem and start mysqld:
InnoDB: 1) If there is a permission problem in the file and mysqld cannot
InnoDB: open the file, you should modify the permissions.
InnoDB: 2) If the table is not needed, or you can restore it from a backup,
InnoDB: then you can remove the .ibd file, and InnoDB will do a normal
InnoDB: crash recovery and ignore that table.
InnoDB: 3) If the file system or the disk is broken, and you cannot remove
InnoDB: the .ibd file, you can set innodb_force_recovery > 0 in my.cnf
InnoDB: and force InnoDB to continue crash recovery here.
170409 01:33:41 mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended

Answer 1

我遇到了同样的问题，您只需将 ib_logfile0 和 ib_logfile1 重命名为 ib_logfile_0 和 ib_logfile_1 即可。那么你的问题就解决了。