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4.3.3. mysql.server — MySQL Server Startup Script

MySQL distributions on Unix include a script named mysql.server. It can be used on systems such as Linux and Solaris that use System V-style run directories to start and stop system services. It is also used by the Mac OS X Startup Item for MySQL.

mysql.server can be found in the support-files directory under your MySQL installation directory or in a MySQL source distribution.

If you use the Linux server RPM package (MySQL-server-VERSION.rpm), the mysql.server script will be installed in the /etc/init.d directory with the name mysql. You need not install it manually. See Section 2.4, “Installing MySQL from RPM Packages on Linux”, for more information on the Linux RPM packages.

Some vendors provide RPM packages that install a startup script under a different name such as mysqld.

If you install MySQL from a source distribution or using a binary distribution format that does not install mysql.server automatically, you can install it manually. Instructions are provided in Section 2.10.2.2, “Starting and Stopping MySQL Automatically”.

mysql.server reads options from the [mysql.server] and [mysqld] sections of option files. For backward compatibility, it also reads [mysql_server] sections, although you should rename such sections to [mysql.server] when you begin using MySQL 4.0 or later.

mysql.server supports the following options.


User Comments

Posted by Torsten Schlabach on September 8 2004 8:33am[Delete] [Edit]

I recommend everybody to change the section that reads

# Set some defaults
datadir=/usr/local/mysql/data
pid_file=
if test -z "$basedir"
then
basedir=/usr/local/mysql
bindir=./bin
else
bindir="$basedir/bin"
fi

in mysql.server to

# Set some defaults
pid_file=
if test -z "$basedir"
then
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
bindir=./bin
else
bindir="$basedir/bin"
datadir="$basedir/data"
fi

in order to have the script look for the data directory under the $basedir, not hard-coded as /usr/local/mysql.

This is particularly important if you are running multiple instances of MySQL on the same server as the datadir is where the script looks for the pid file. Getting this wrong will easily lead to different instances of MySQL sharing the same pid file. The result will be that any mysql stop will stop the last instance startet, not the one intended!

Posted by David Tonhofer on October 5 2007 6:17pm[Delete] [Edit]

As the main goal of mysql.server is to:

1) Find a program that can read MySQL "my.cnf" argument files (preferably "./bin/my_print_defaults"),
2) Find an applicable "my.cnf" argument file (preferably "$datadir/my.cnf"),
3) Extract attribute-value pairs from sections "[mysqld]", "[server]", "[mysql_server]", "[mysql.server]" from the found "my.cnf" and several default "my.cnf" files,
4) Transform the resulting bunch of pairs into command line arguments to be passed to MySQL server,

...you are probably interested in the resulting command line and the command that generated it.

Replace:

----
parse_server_arguments `$print_defaults $extra_args mysqld server mysql_server mysql.server`

# Look for the pidfile
parse_manager_arguments `$print_defaults $extra_args manager`
----

by:

----
# Get arguments for server, which may cause reshuffle
COLLECT_COMMAND="$print_defaults $extra_args mysqld server mysql_server mysql.server"
echo "Now running for server: $COLLECT_COMMAND"
COLLECT_RESULT=`$COLLECT_COMMAND`
echo "Collected for server: $COLLECT_RESULT"
parse_server_arguments $COLLECT_RESULT

# Look for the (manager) pidfile
COLLECT_COMMAND="$print_defaults $extra_args manager"
echo "Now running for manager: $COLLECT_COMMAND"
COLLECT_RESULT=`$COLLECT_COMMAND`
echo "Collected for manager: $COLLECT_RESULT"
parse_manager_arguments $COLLECT_RESULT
----

And also add

-----------
echo "Manager PID file is $pid_file, Server PID file is $server_pid_file"
-----------

directly before the line 'case "$mode" in'

for some great debugging justice.




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