How to stop mysqld

To safely stop the mysqld process (MySQL server), you can use different methods depending on your operating system. The following are some common approaches:

1. Using MySQL Service Commands

For most Linux distributions, you can use service management commands to stop the MySQL service. For instance:

bash
sudo service mysql stop

Alternatively, use systemctl (systemd system):

bash
sudo systemctl stop mysqld

Ensure that the commands and service names align with your system's configuration (e.g., the service might be named mysqld or mysql).

2. Using MySQL's Built-in Management Commands

MySQL offers a command-line tool mysqladmin for managing the database server, including stopping it:

bash
mysqladmin -u root -p shutdown

In this command, -u root specifies the root user, and -p prompts for the password.

3. Directly Terminating the Process

Although not recommended because it may lead to data loss or file corruption, in specific cases where MySQL fails to stop normally, you may need to directly terminate the mysqld process:

bash
sudo killall mysqld

Alternatively, if you know the process ID:

bash
sudo kill -TERM <pid>

Here, <pid> represents the process ID of the mysqld process. You can locate it using the ps command:

bash
ps aux | grep mysqld

Conclusion

We recommend using method 1 or 2, as they safely shut down the MySQL server without risking data integrity. Force-killing the process should be employed as a last resort when the service fails to stop normally.