Server Command Options --plugin-load-add  can be used to avoid specifying a large set of plugins as a single long unwieldy --plugin-load  argument. --plugin-load-add  can be given in the absence of  --plugin-load , but any instance of  -- plugin-load-add  that appears before  --plugin-load . has no effect because  --plugin-load resets the set of plugins to load. In other words, these options: --plugin-load=x --plugin-load-add=y --plugin-load="x;y" --plugin-load-add=y --plugin-load=x --plugin-load=x • --plugin- xxx For additional information about plugin loading, see Section 5.6.1, “Installing and Uninstalling Plugins” . are equivalent to this option: are equivalent to this option: But these options: For boolean options that can be enabled or disabled, the  --skip  prefix and other alternative formats are supported as well (see Section 4.2.2.4, “Program Option Modifiers” ). For example,  --skip-plugin- innodb-file-per-table  disables  innodb-file-per-table . Specifies an option that pertains to a server plugin. For example, many storage engines can be built as plugins, and for such engines, options for them can be specified with a  --plugin  prefix. Thus, the  -- innodb-file-per-table  option for  InnoDB  can be specified as  --plugin-innodb-file-per- table . The rationale for the  --plugin  prefix is that it enables plugin options to be specified unambiguously if there is a name conflict with a built-in server option. For example, were a plugin writer to name a plugin “sql”  and implement a “mode”  option, the option name might be  --sql-mode , which would conflict with the built-in option of the same name. In such cases, references to the conflicting name are resolved in favor of the built-in option. To avoid the ambiguity, users can specify the plugin option as  --plugin- sql-mode . Use of the  --plugin  prefix for plugin options is recommended to avoid any question of ambiguity. • --port= port_num ,  -P  port_num Command-Line Format --port=port_num System Variable port Scope Global Dynamic No SET_VAR  Hint Applies No Type Integer Default Value 3306 Minimum Value 0 749