MySQL MAMP不起作用

Question

我對MAMP有問題，我將端口設置為：Apache：8888 MySQL：8889，但MySQL無法正常工作。 所以我讀了mysql_error_log.err文件，我有這個：

> 161018 14:21:12 mysqld_safe Starting mysqld daemon with databases from /Applications/MAMP/db/mysql56
2016-10-18 14:21:13 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-10-18 14:21:13 0 [Note] /Applications/MAMP/Library/bin/mysqld (mysqld 5.6.28) starting as process 6728 ...
2016-10-18 14:21:13 6728 [Warning] Setting lower_case_table_names=2 because file system for /Applications/MAMP/db/mysql56/ is case insensitive
2016-10-18 14:21:13 6728 [Note] Plugin 'FEDERATED' is disabled.
2016-10-18 14:21:13 6728 [Note] InnoDB: Using atomics to ref count buffer pool pages
2016-10-18 14:21:13 6728 [Note] InnoDB: The InnoDB memory heap is disabled
2016-10-18 14:21:13 6728 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-10-18 14:21:13 6728 [Note] InnoDB: Memory barrier is not used
2016-10-18 14:21:13 6728 [Note] InnoDB: Compressed tables use zlib 1.2.8
2016-10-18 14:21:13 6728 [Note] InnoDB: Using CPU crc32 instructions
2016-10-18 14:21:13 6728 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2016-10-18 14:21:13 6728 [Note] InnoDB: Completed initialization of buffer pool
2016-10-18 14:21:13 6728 [Note] InnoDB: Highest supported file format is Barracuda.
2016-10-18 14:21:13 6728 [Note] InnoDB: The log sequence numbers 1600607 and 1600607 in ibdata files do not match the log sequence number 1605546 in the ib_logfiles!
2016-10-18 14:21:13 6728 [Note] InnoDB: Database was not shutdown normally!
2016-10-18 14:21:13 6728 [Note] InnoDB: Starting crash recovery.
2016-10-18 14:21:13 6728 [Note] InnoDB: Reading tablespace information from the .ibd files...
2016-10-18 14:21:13 6728 [ERROR] InnoDB: Attempted to open a previously opened tablespace. Previous tablespace mysql/innodb_table_stats uses space ID: 1 at filepath: ./mysql/innodb_table_stats.ibd. Cannot open tablespace racehistory/users which uses space ID: 1 at filepath: ./racehistory/users.ibd
2016-10-18 14:21:13 7fff77000000  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 ./racehistory/users.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.
161018 14:21:13 mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended

但是我不明白這是什么 但我看到這條線

> InnoDB: Error: could not open single-table tablespace file ./racehistory/users.ibd

這不是我的數據庫名稱，我的數據庫名稱是RaceHistory。 也許問題出在這里，但是在這種情況下，我不知道如何更改MySQL，在PHPmyAdmin中，我創建了一個名為RaceHistory的數據庫。 我試圖更改MySQL的端口，並嘗試使用3300、3306和隨機端口，而3300可以運行片刻，然后再次崩潰。 因此，如果您有任何想法！ 謝謝 ！ （對不起我的英語）

編輯：我嘗試通過終端啟動apache和mysql，所以我去了/ MAMP / bin，我做sh start.sh，它為apache啟動，但是對於mysql我有這個：

161018 15:45:39 mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended

所以我去了tmp / mysql而我沒有mysql.pid文件！

Answer 1

您的錯誤消息提供了一些很好的線索下一步該怎么做。

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 ./racehistory/users.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.