NAME

       mysqld - the MySQL server

SYNOPSIS

       mysqld [options]

DESCRIPTION

       mysqld, also known as MySQL Server, is a single multithreaded program that does most of
       the work in a MySQL installation. It does not spawn additional processes. MySQL Server
       manages access to the MySQL data directory that contains databases and tables. The data
       directory is also the default location for other information such as log files and status
       files.

           Note
           Some installation packages contain a debugging version of the server named
           mysqld-debug. Invoke this version instead of mysqld for debugging support, memory
           allocation checking, and trace file support (see Section 7.9.1.2, “Creating Trace
           Files”).

       When MySQL server starts, it listens for network connections from client programs and
       manages access to databases on behalf of those clients.

       The mysqld program has many options that can be specified at startup. For a complete list
       of options, run this command:

           mysqld --verbose --help

       MySQL Server also has a set of system variables that affect its operation as it runs.
       System variables can be set at server startup, and many of them can be changed at runtime
       to effect dynamic server reconfiguration. MySQL Server also has a set of status variables
       that provide information about its operation. You can monitor these status variables to
       access runtime performance characteristics.

       For a full description of MySQL Server command options, system variables, and status
       variables, see Section 7.1, “The MySQL Server”. For information about installing MySQL and
       setting up the initial configuration, see Chapter 2, Installing MySQL.

COPYRIGHT

       Copyright © 1997, 2024, Oracle and/or its affiliates.

       This documentation is free software; you can redistribute it and/or modify it only under
       the terms of the GNU General Public License as published by the Free Software Foundation;
       version 2 of the License.

       This documentation is distributed in the hope that it will be useful, but WITHOUT ANY
       WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
       PURPOSE. See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with the program;
       if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
       Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.

SEE ALSO

       For more information, please refer to the MySQL Reference Manual, which may already be
       installed locally and which is also available online at http://dev.mysql.com/doc/.

AUTHOR

       Oracle Corporation (http://dev.mysql.com/).