(mysql.info) instance-manager-startup-process

(mysql.info) instance-manager-security
 
 5.5.1 Starting the MySQL Server with MySQL Instance Manager
 -----------------------------------------------------------
 
 Normally, the `mysqld' MySQL Database Server is started with the
 `mysql.server' script, which usually resides in the `/etc/init.d/'
 folder. In MySQL 5.0.3 this script invokes `mysqlmanager' (the MySQL
 Instance Manager binary) to start MySQL. (In prior versions of MySQL the
 `mysqld_safe' script is used for this purpose.) Starting from MySQL
 5.0.4 the behavior of the init script was changed again to incorporate
 both setup schemes. In version 5.0.4, the init startup script uses the
 old scheme (invoking `mysqld_safe') by default, but one can set the
 `use_mysqld_safe' variable in the script to `0' (zero) to use the MySQL
 Instance Manager to start a server.
 
 The Instance Manager's behavior in this case depends on the options
 given in the MySQL configuration file. If there is no configuration
 file, the MySQL Instance Manager creates a server instance named
 `mysqld' and attempts to start it with default (compiled-in)
 configuration values.  This means that the IM cannot guess the
 placement of `mysqld' if it is not installed in the default location.
 If you have installed the MySQL server in a non-standard location, you
 should use a configuration file.  See  installation-layouts.
 
 If there is a configuration file, the IM reads it to find `[mysqld]'
 sections (for example, `[mysqld]', `[mysqld1]', `[mysqld2]', and so
 forth). Each such section specifies an instance. When it starts, the
 Instance Manager attempts to start all server instances that it finds.
 By default, the Instance Manager stops all server instances when it
 shuts down.
 
 Note that there is a special -mysqld-path=PATH-TO-MYSQLD-BINARY option
 that is recognized only by the IM. Use this variable to let the IM know
 where the `mysqld' binary resides. You should also set `basedir' and
 `datadir' options for the server.
 
 The typical startup/shutdown cycle for a MySQL server with the MySQL
 Instance Manager enabled is as follows:
 
   1. The MySQL Instance Manager is started with `/etc/init.d/mysql'
      script.
 
   2. The MySQL Instance Manager starts all instances and monitors them.
 
   3. If a server instance fails the MySQL Instance Manager restarts it.
 
   4. If the MySQL Instance Manager is shut down (for instance with the
      `/etc/init.d/mysql stop' command), all instances are shut down by
      the MySQL Instance Manager.
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