MySQL Utilities

5.25 mysqlserverinfo — Display Common Diagnostic Information from a Server

This utility displays critical information about a server for use in diagnosing problems. The information displayed includes the following:

This utility can be used to see the diagnostic information for servers that are running or offline. If you want to see information about an offline server, the utility starts the server in read-only mode. In this case, you must specify the --basedir, --datadir, and --start options to prevent the utility from starting an offline server accidentally. Note: Be sure to consider the ramifications of starting an offline server on the error and similar logs. It is best to save this information prior to running this utility.

To specify how to display output, use one of the following values with the --format option:

To turn off the headers for grid, csv, or tab display format, specify the --no-headers option.

To see the common default settings for the local server's configuration file, use the --show-defaults option. This option reads the configuration file on the machine where the utility is run, not the machine for the host that the --server option specifies.

To run the utility against several servers, specify the --server option multiple times. In this case, the utility attempts to connect to each server and read the information.

To see the MySQL servers running on the local machine, use the --show-servers option. This shows all the servers with their process ID and data directory. On Windows, the utility shows only the process ID and port.


mysqlserverinfo accepts the following command-line options:

For the --format option, the permitted values are not case-sensitive. In addition, values may be specified as any unambiguous prefix of a valid value. For example, --format=g specifies the grid format. An error occurs if a prefix matches more than one valid value.

The path to the MySQL client tools should be included in the PATH environment variable in order to use the authentication mechanism with login-paths. This permits the utility to use the my_print_defaults tools which is required to read the login-path values from the login configuration file (.mylogin.cnf).


To display the server information for the local server and the settings for mysqld in the configuration file with the output in a vertical list, use this command:

shell> mysqlserverinfo --server=root:pass@localhost -d --format=vertical
# Source on localhost: ... connected.
*************************       1. row *************************
         server: localhost:3306
        version: 5.1.50-log
        datadir: /usr/local/mysql/data/
        basedir: /usr/local/mysql-5.1.50-osx10.6-x86_64/
     plugin_dir: /usr/local/mysql-5.1.50-osx10.6-x86_64/lib/plugin
    config_file: /etc/my.cnf
     binary_log: my_log.000068
 binary_log_pos: 212383
      relay_log: None
  relay_log_pos: None
1 rows.

Defaults for server localhost:3306


The permissions required include the ability to read the mysql database and to have read access to the data directory.

The user must have permissions to read the data directory or use an administrator or super user (sudo) account to obtain access to the data directory.