macos - MySQL server start issues on Mavericks

Question

I am having difficulty using MySQL on my MacBook, I am trying to start my server using sudo mysqld_safe and this results in the following output:

140131 00:03:02 mysqld_safe Logging to '/usr/local/var/mysql/david-mbp.err'.
140131 00:03:02 mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql
140131 00:03:03 mysqld_safe mysqld from pid file /usr/local/var/mysql/david-mbp.pid ended

I had a look at this question and it has all the same issues and methods I have tried to resolve my issues. His fix was the upgrade to Lion but I am already on the latest version of Mavericks so this is not a viable solution for me.

I have googled around and reinstalled numerous times but haven't managed to find why I get this issue.

How can I fix this issue?

Edit:

140131 00:03:02 mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql
2014-01-31 00:03:03 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2014-01-31 00:03:03 13223 [Warning] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive
2014-01-31 00:03:03 13223 [Note] Plugin 'FEDERATED' is disabled.
/usr/local/Cellar/mysql/5.6.15/bin/mysqld: Can't find file: './mysql/plugin.frm' (errno: 13 - Permission denied)
2014-01-31 00:03:03 13223 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
2014-01-31 00:03:03 13223 [Note] InnoDB: The InnoDB memory heap is disabled
2014-01-31 00:03:03 13223 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2014-01-31 00:03:03 13223 [Note] InnoDB: Compressed tables use zlib 1.2.3
2014-01-31 00:03:03 13223 [Note] InnoDB: Using CPU crc32 instructions
2014-01-31 00:03:03 13223 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2014-01-31 00:03:03 13223 [Note] InnoDB: Completed initialization of buffer pool
2014-01-31 00:03:03 13223 [ERROR] InnoDB: ./ibdata1 can't be opened in read-write mode
2014-01-31 00:03:03 13223 [ERROR] InnoDB: The system tablespace must be writable!
2014-01-31 00:03:03 13223 [ERROR] Plugin 'InnoDB' init function returned error.
2014-01-31 00:03:03 13223 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2014-01-31 00:03:03 13223 [ERROR] Unknown/unsupported storage engine: InnoDB
2014-01-31 00:03:03 13223 [ERROR] Aborting

2014-01-31 00:03:03 13223 [Note] Binlog end
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'partition'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_SYS_FIELDS'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_SYS_INDEXES'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_SYS_TABLES'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_FT_CONFIG'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_FT_DELETED'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_METRICS'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_CMPMEM'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_CMP_RESET'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_CMP'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_LOCK_WAITS'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_LOCKS'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'INNODB_TRX'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'BLACKHOLE'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'ARCHIVE'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'MRG_MYISAM'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'MyISAM'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'MEMORY'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'CSV'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'sha256_password'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'mysql_old_password'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'mysql_native_password'
2014-01-31 00:03:03 13223 [Note] Shutting down plugin 'binlog'
2014-01-31 00:03:03 13223 [Note] /usr/local/Cellar/mysql/5.6.15/bin/mysqld: Shutdown complete

140131 00:03:03 mysqld_safe mysqld from pid file /usr/local/var/mysql/david-mbp.pid ended

ls -l /usr/local/var/mysql output:

-rw-rw----   1 dave      admin  50331648 30 Jan 22:35 ib_logfile0
-rw-rw----   1 dave      admin  50331648 30 Jan 22:35 ib_logfile1
-rw-rw----   1 dave      admin  12582912 30 Jan 22:35 ibdata1
drwx------  81 dave      admin      2754 30 Jan 22:35 mysql
drwx------  55 dave      admin      1870 30 Jan 22:35 performance_schema
-rw-r-----   1 _mysql    admin      4784 31 Jan 00:03 david-mbp.err
drwx------   2 dave      admin        68 30 Jan 22:35 test

question from:https://stackoverflow.com/questions/21470193/mysql-server-start-issues-on-mavericks

Answer 1

File permissions are definitely the cause of the issue. There are far better experts than me, but I recommend the following:

Ensure your entire data directory is owned by the _mysql user with permissions drwxr-xr-x.

In your case, it appears that your MySQL installation directory is your data directory. My data directory is in a subdirectory of the installation directory.

You can probably get up and running by changing permissions per the command:

sudo chown -R _mysql:admin /usr/local/var/mysql
sudo chmod -R u+rwX,g+rwX,o-rwx /usr/local/var/mysql

This may limit your dave account from accessing the mysql installation directory without sudo, so you may wish to tweak these permissions to include g+rwx if your dave user is a member of the admin group, which it appears to be. That tweak would be accomplished with:

sudo chmod -R g+rwx /usr/local/var/mysql