WordPress at a glance
action is not described

wp_(blog_id)_wc_updater_cron action-hook . WC 1.0

Used to fire an action added in WP_Background_Process::_construct() that calls WP_Background_Process::handle_cron_healthcheck(). This method will make sure the database updates are executed even if cron is disabled. Nothing will happen if the updates are already running.

Usage

add_action( 'wp_(blog_id)_wc_updater_cron', 'action_function_name_6356' );
function action_function_name_6356(){
	// action...
}

Where the hook is called

WC_REST_System_Status_Tools_V2_Controller::execute_tool()
wp_(blog_id)_wc_updater_cron

Where in WP core the hook is used WooCommerce

woocommerce/includes/class-wc-install.php 201
add_action( 'wp_' . $blog_id . '_wc_updater_cron', array( __CLASS__, 'run_manual_database_update' ) );