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Source View: do_mu_upgrade

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Source View

Line Code
54       * returns true.
55       *
56       * If the network is 50 sites or less, it will run every time. Otherwise,
57       * it will throttle itself to reduce load.
58       *
59       * @since 3.0.0
60       *
61       * @param bool true Whether to perform the Multisite upgrade routine. Default true.
62       */
63      } elseif ( apply_filters( 'do_mu_upgrade', true ) ) {
64           $c = get_blog_count();
65           // If 50 or fewer sites, run every time. Else, run "about ten percent" of the time. Shh, don't check that math.
66           if ( $c <= 50 || ( $c > 50 && mt_rand( 0, (int)( $c / 50 ) ) == 1 ) ) {
67                require_once( ABSPATH . WPINC . '/http.php' );
68                $response = wp_remote_get( admin_url( 'upgrade.php?step=1' ), array( 'timeout' => 120, 'httpversion' => '1.1' ) );
69                /** This action is documented in wp-admin/network/upgrade.php */
70                do_action( 'after_mu_upgrade', $response );
71                unset($response);
72           }