Why is My MySQL Server on Mac OS X Quitting Without Updating the PID File?

MySQL Server Startup Error: 'The Server Quit Without Updating PID File'

When encountering this error while starting MySQL on Mac OS X v10.6 (Snow Leopard), it is recommended to troubleshoot the issue as follows:

1. Locate the Error Log

Examine the log files (with .err suffix) to gather more information about the error. Check the directory /usr/local/var/mysql/your_computer_name.local.err.

2. Check for Running Instances

Verify if any MySQL instances are already running using the command:

ps -ef | grep mysql

If so, stop the instance or terminate the process with:

kill -9 PID

Where PID is the number listed in the output of the previous command.

3. Check File Permissions

Examine the ownership of the /usr/local/var/mysql/ directory:

ls -laF /usr/local/var/mysql/

If it is owned by root, change the owner to mysql or your preferred user:

sudo chown -R mysql /usr/local/var/mysql/

Once these steps are followed, it is likely that the MySQL server will start without encountering the error. If the issue persists, it may be necessary to consult other troubleshooting resources or contact customer support for further assistance.

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