Title: Multisite conpatibility?
Last modified: August 22, 2016

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# Multisite conpatibility?

 *  Resolved [sowozup](https://wordpress.org/support/users/sowozup/)
 * (@sowozup)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/multisite-conpatibility/)
 * Hi,
 * I just installed your Plugin and activated it on the primary page of my Multiblog
   Installation.
 * Is it necessary to activate it network wide and configure it on every Subdomain?
 * Thanks
 * [https://wordpress.org/plugins/heartbeat-control/](https://wordpress.org/plugins/heartbeat-control/)

Viewing 12 replies - 1 through 12 (of 12 total)

 *  Plugin Author [Jeff Matson](https://wordpress.org/support/users/jeffmatson/)
 * (@jeffmatson)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799545)
 * It is not tested with multisite. Feel free to post your results here though.
 *  [michaeljcripps](https://wordpress.org/support/users/michaeljcripps/)
 * (@michaeljcripps)
 * [10 years, 11 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799620)
 * Heartbeat Control does not work in a multisite/network installation. Installed
   and went through each blog on the multisite to set controls. No effect on heartbeat.
   I was really hoping this would help control cpu load.
 *  [pako69](https://wordpress.org/support/users/pako69/)
 * (@pako69)
 * [10 years, 11 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799621)
 * +1 for multisite/network installation too 🙂
    thanks
 *  [max](https://wordpress.org/support/users/maxfein/)
 * (@maxfein)
 * [10 years, 11 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799622)
 * You can try using an mu-plugin (all thanks to Sybre!)
 *     ```
       <?php
       /*
        * Plugin Name: Heartbeat Slowdown [Multisite module]
        * Plugin URI: https://hostmijnpagina.nl/
        * Description: Lower the heartbeat frequency to reduce http requests
        * Author: Sybre Waaijer
        * Author URI: https://cyberwire.nl/
       */
   
       function hmpl_slow_heartbeat( $settings ) {
           $settings['interval'] = 60;
           return $settings;
       }
       add_filter( 'heartbeat_settings', 'hmpl_slow_heartbeat' );
       ```
   
 *  [Be Dark](https://wordpress.org/support/users/b_dark/)
 * (@b_dark)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799625)
 * [@maxfein](https://wordpress.org/support/users/maxfein/) where you add this?
 *  [flojnel](https://wordpress.org/support/users/flojnel/)
 * (@flojnel)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799626)
 * Add it to wp-content/mu-plugins. I named mine heartbeat.php.
 *  [Be Dark](https://wordpress.org/support/users/b_dark/)
 * (@b_dark)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799627)
 * Do I have to upload the plugin or this file too?
    Also, I noticed that the code
   above doesn’t close with “?>”
 *  [ShawnLunny](https://wordpress.org/support/users/shawnlunny/)
 * (@shawnlunny)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799630)
 * [@b_dark](https://wordpress.org/support/users/b_dark/)
 * PHP files don’t need to end in ?> nowadays. It’s actually viewed as bad practice.
 * For more reading I recommend this StackOverflow article which explains why in
   detail: [Why you should omit closing tags](http://stackoverflow.com/questions/4410704/why-would-one-omit-the-close-tag)
 *  [frenchmedia](https://wordpress.org/support/users/frenchmedia/)
 * (@frenchmedia)
 * [10 years, 9 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799631)
 * hi
 * any feed back is it working
 * so i need to activate the plugin on all the site indepensdantly and then put 
   the php code in mu plugin?
 * thnaks
 *  [flojnel](https://wordpress.org/support/users/flojnel/)
 * (@flojnel)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799632)
 * I’d added the suggested script to my multisite installation, but I finally realized
   it wasn’t working and I had to delete it.
 *  [Karissa Skirmont](https://wordpress.org/support/users/karissa/)
 * (@karissa)
 * [10 years, 6 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799633)
 * +1
 *  [crold](https://wordpress.org/support/users/niagaracollege/)
 * (@niagaracollege)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799635)
 * Thanks [@maxfein](https://wordpress.org/support/users/maxfein/)!
 * Copy/pasted the code exactly into a file I named heartbeat.php and uploaded it
   to /mu-plugins/ within /wp-content/ on my (absolutely massive) multisite installation.
 * No longer receiving connection errors. Page load has dropped by 4 seconds (it
   was bad) on the backend. No longer seeing massive wait on admin-ajax.php on site
   pingdom test.
 * EDIT: The relief was temporary. I’m still loading quicker, but the connection
   errors are back. Ouch!

Viewing 12 replies - 1 through 12 (of 12 total)

The topic ‘Multisite conpatibility?’ is closed to new replies.

 * ![](https://ps.w.org/heartbeat-control/assets/icon-256x256.png?rev=2952275)
 * [Heartbeat Control](https://wordpress.org/plugins/heartbeat-control/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/heartbeat-control/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/heartbeat-control/)
 * [Active Topics](https://wordpress.org/support/plugin/heartbeat-control/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/heartbeat-control/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/heartbeat-control/reviews/)

 * 12 replies
 * 11 participants
 * Last reply from: [crold](https://wordpress.org/support/users/niagaracollege/)
 * Last activity: [10 years, 5 months ago](https://wordpress.org/support/topic/multisite-conpatibility/#post-5799635)
 * Status: resolved