Does MySQL included with MAMP not include a config file?
Question
I can't seem to find the my.cnf or other config file for the MySQL that comes with MAMP. Does it not include one?
Solution
The MySQL server of MAMP (not PRO) will be started without any my.cnf file. But you can create your own my.cnf file.
- Stop servers
- Create a
my.cnf
file in/Applications/MAMP/conf/
- Add your content in to
my.cnf
- Save
my.cnf
- Start servers
You do not have to put a complete configuration in the my.cnf file. You can just add parts of a configuration ... for example:
[mysqld]
max_allowed_packet = 64M
OTHER TIPS
Some standard my.cnf variants can be found at /Applications/MAMP/Library/support-files/
Invoking mysqld --verbose --help | less
on the MAMP mysqld binary reports:
Default options are read from the following files in the given order: /etc/my.cnf /etc/mysql/my.cnf /Applications/MAMP/conf/my.cnf ~/.my.cnf
Copy one of the variants in /Applications/MAMP/Library/support-files/ to one of the locations in mysqld's search order above, and you should be good to go after restarting the daemon.
Since MAMP server generates my.cnf
dynamically on MAMP server startup, it's best to use the following steps to add or edit the MySQL configuration:
- Stop MAMP server
- Goto Files > Edit Template > MySQL
- Make the necessary changes and save
- Restart MAMP
I tried this on MAMP PRO 3.5.
For MAMP 3.5 on Mac El Capitan, only this worked for me:
- Stop servers
- Create a
my.cnf
file in/Applications/MAMP/Library/
Add your content into
my.cnf
like[mysqld] max_allowed_packet = 64M
Save
my.cnf
- Start servers
Not required to change ownership of file, it should work. Verify by running SHOW VARIABLES
in phpmyadmin and look for your changed setting.
No, it doesn't come with the my.cnf file
I found that MAMP PRO will create a my.cnf by default on startup under the MAMP/tmp directory if a ~/my.cnf is not provided ... grepping ps aux you may find the default location under /Applications/MAMP/tmp/my.cnf ...
ps aux | grep mysql
Which provided the following...
root 284 0.0 0.1 2435544 532 ?? Ss 12:00AM 0:00.06 /bin/sh /Applications/MAMP/Library/bin/mysqld_safe
--defaults-file=/Applications/MAMP/tmp/mysql/my.cnf
--port=8889 --socket=/Applications/MAMP/tmp/mysql/mysql.sock
--user=mysql --pid-file=/Applications/MAMP/tmp/mysql/mysql.pid
--log-error=/Applications/MAMP/logs/mysql_error_log.err
--tmpdir=/Applications/MAMP/tmp/mysql/tmpdir
--datadir=/Library/Application Support/appsolute/MAMP PRO/db/mysql