mysqld_safe

mysqld_safe reads all options from the [mysqld], [server], and [mysqld_safe] sections in option files. For example, if you specify a [mysqld] section like this, mysqld_safe will find and use the --log-error option:

[mysqld]
log-error=error.log

mysqld_safe Options

Option Name Description
--basedir Path to MySQL installation directory
--core-file-size Size of core file that mysqld should be able to create
--datadir Path to data directory
--defaults-extra-file Read named option file in addition to usual option files
--defaults-file Read only named option file
--help Display help message and exit
--ledir Path to directory where server is located
--log-error Write error log to named file
--malloc-lib Alternative malloc library to use for mysqld
--mysqld Name of server program to start (in ledir directory)
--mysqld-version Suffix for server program name
--nice Use nice program to set server scheduling priority
--no-defaults Read no option files
--open-files-limit Number of files that mysqld should be able to open
--pid-file Path name of server process ID file
--plugin-dir Directory where plugins are installed
--port Port number on which to listen for TCP/IP connections
--skip-kill-mysqld Do not try to kill stray mysqld processes
--skip-syslog Do not write error messages to syslog; use error log file
--socket Socket file on which to listen for Unix socket connections
--syslog Write error messages to syslog
--syslog-tag Tag suffix for messages written to syslog
--timezone Set TZ time zone environment variable to named value
--user Run mysqld as user having name user_name or numeric user ID user_id

If you execute mysqld_safe with the --defaults-file or --defaults-extra-file option to name an option file, the option must be the first one given on the command line or the option file will not be used. For example, this command will not use the named option file:

mysql> mysqld_safe --port=port_num --defaults-file=file_name

Instead, use the following command:

mysql> mysqld_safe --defaults-file=file_name --port=port_num