在MAMP上运行mysql时出现问题

Question

I am trying to get the MySQL server on MAMP to run, but to no avail.

It was working fine, but I stopped using MAMP when I started using Ruby on Rails. Now I want to work on some older PHP projects that live in my MAMP install and I can't fire them up. Most frustrating.

I suspect it is related to the MySQL gem installed with RoR, but I am unsure as to how I can check or how I would fix the conflict.

My question, essentially, is "how can I start my mySql server?"

Os: 10.7.4 MAMP V: 1.8.4

I have check the logs:

Output of tail mysql_error_log.err -n 100 :

==> mysql_error_log.err <==
120715 12:11:41 [ERROR] Can't start server: Bind on TCP/IP port: Address already in use
120715 12:11:41 [ERROR] Do you already have another mysqld server running on port: 3306 ?
120715 12:11:41 [ERROR] Aborting

120715 12:11:41  InnoDB: Starting shutdown...
120715 12:11:42  InnoDB: Shutdown completed; log sequence number 0 44233
120715 12:11:42 [Warning] Forcing shutdown of 2 plugins
120715 12:11:42 [Note] /Applications/MAMP/Library/libexec/mysqld: Shutdown complete

120715 12:11:42 mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended

Update

I have tried to edit the my.cnf of the running instances, as suggested. I dod this my running locate my.cnf to find the files.

that returned two results, one which was in MAMP PRO (which I am not using) and another (based in Macports). I chose to edit lines 15 and 34 of the Macports file. . I then restarted the machine.

It appears I am getting the same error:

==> mysql_error_log.err <==
120715 13:37:26 [ERROR] Can't start server: Bind on TCP/IP port: Address already in use
120715 13:37:26 [ERROR] Do you already have another mysqld server running on port: 3306 ?
120715 13:37:26 [ERROR] Aborting

120715 13:37:26  InnoDB: Starting shutdown...
120715 13:37:27  InnoDB: Shutdown completed; log sequence number 0 44233
120715 13:37:27 [Warning] Forcing shutdown of 2 plugins
120715 13:37:27 [Note] /Applications/MAMP/Library/libexec/mysqld: Shutdown complete

120715 13:37:27 mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended

Answer 1

120715 12:11:41 [ERROR] Can't start server: Bind on TCP/IP port: Address already in use

120715 12:11:41 [ERROR] Do you already have another mysqld server running on port: 3306 ?

You already have MySQL or some other program using the port 3306. You can either terminate the existing program or use a different port.

The port can be changed in the MySQL configuration file my.cnf .

Answer 2

Did you ever find a solution for this? This isn't an answer so much as a temporary hack to get the old PHP project working. As Joni said, terminating MySQL will do the trick. Here's how I did it: The Macports/Homebrew version of MySQL should launch on boot, so when MAMP is launched only Apache starts. In Activity Monitor, search for 'mysql' — 1 or 2 instances of 'mysqld' should appear. Quit these and immediately click 'Start Servers' in MAMP (FWIW, I am using the default Apache and MySQL ports (80 & 3306) in MAMP). It took a few tries, but eventually I beat the other daemon, which tries to restart. A temporary and ugly solution, but it got me into an old project when I was short on time. I'm still looking for a permanent solution, one that doesn't involve completely scrapping everything and starting over.

Edit: A better way to kill mysqld using Terminal: killall mysqld

Answer 3

I'm on Mac and I installed MySql separate of MAMP, at some point. This version of MySql was blocking MAMP's MySql server.

Open up System Preferences and if you see a MySQL icon on the bottom row, open it up. Here it told me that I had a MySQL server instance running. Stop the server and uncheck "Automatically Start MySQL Server on Startup"

Hope this helps someone!