Title: spawn sync 4k requests
Last modified: August 29, 2024

---

# spawn sync 4k requests

 *  Resolved [mcdeth](https://wordpress.org/support/users/mcdeth/)
 * (@mcdeth)
 * [1 year, 9 months ago](https://wordpress.org/support/topic/spawn-sync-4k-requests/)
 * hi, suddenly started noticing big amount of requests from
 * /wp-json/jetpack/v4/sync/spawn-sync
 * IP is my servers ip
 * User agent WordPress/6.6.1;
 * Most requests end with 499 Client Closed Request
 *     ```wp-block-code
       Opening the url says "DEDICATED SYNC OK"
       ```
   
 * I dont remember instaling this plugin, maybe 2 years ago. It’s not on plugin 
   list. I got in my cron:
 *     ```wp-block-code
       jetpack_sync_full_cronjetpack_sync_cronjetpack_clean_noncesjetpack_v2_heartbeat
       ```
   

Viewing 6 replies - 1 through 6 (of 6 total)

 *  Thread Starter [mcdeth](https://wordpress.org/support/users/mcdeth/)
 * (@mcdeth)
 * [1 year, 9 months ago](https://wordpress.org/support/topic/spawn-sync-4k-requests/#post-17983653)
 * Disabling cron for an hour
 *     ```wp-block-code
       define('DISABLE_WP_CRON', true);
       ```
   
 * didn’t bring any help
 * I also get a lot of these in logs:
 *     ```wp-block-code
       [29-Aug-2024 13:12:56 UTC] PHP Fatal error:  Uncaught TypeError: Automattic\WooCommerce\Utilities\ArrayUtil::get_value_or_default(): Argument #1 ($items) must be of type array, int given, called in /home/public_html/wp-content/plugins/woocommerce/src/Internal/Features/FeaturesController.php on line 935 and defined in /home/public_html/wp-content/plugins/woocommerce/src/Utilities/ArrayUtil.php:95Stack trace:#0 /home/public_html/wp-content/plugins/woocommerce/src/Internal/Features/FeaturesController.php(935): Automattic\WooCommerce\Utilities\ArrayUtil::get_value_or_default()#1 /home/public_html/wp-includes/class-wp-hook.php(324): Automattic\WooCommerce\Internal\Features\FeaturesController->filter_plugins_list()#2 /home/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters()#3 /home/public_html/wp-content/plugins/woocommerce-payments/vendor/automattic/jetpack-sync/src/class-functions.php(453): apply_filters()#4 [internal function]: Automattic\Jetpack\Sync\Functions::get_plugins()#5 /home/public_html/wp-content/plugins/woocommerce-payments/vendor/automattic/jetpack-sync/src/modules/class-callables.php(257): call_user_func()#6 [internal function]: Automattic\Jetpack\Sync\Modules\Callables->get_callable()#7 /home/public_html/wp-content/plugins/woocommerce-payments/vendor/automattic/jetpack-sync/src/modules/class-callables.php(240): array_map()#8 /home/public_html/wp-content/plugins/woocommerce-payments/vendor/automattic/jetpack-sync/src/modules/class-callables.php(481): Automattic\Jetpack\Sync\Modules\Callables->get_all_callables()#9 /home/public_html/wp-includes/class-wp-hook.php(324): Automattic\Jetpack\Sync\Modules\Callables->maybe_sync_callables()#10 /home/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()#11 /home/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()#12 /home/public_html/wp-content/plugins/woocommerce-payments/vendor/automattic/jetpack-sync/src/class-sender.php(598): do_action()#13 /home/public_html/wp-content/plugins/woocommerce-payments/vendor/automattic/jetpack-sync/src/class-sender.php(487): Automattic\Jetpack\Sync\Sender->do_sync_for_queue()#14 /home/public_html/wp-content/plugins/woocommerce-payments/vendor/automattic/jetpack-sync/src/class-sender.php(362): Automattic\Jetpack\Sync\Sender->do_sync_and_set_delays()#15 /home/public_html/wp-includes/class-wp-hook.php(324): Automattic\Jetpack\Sync\Sender->do_sync()#16 /home/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()#17 /home/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()#18 /home/public_html/wp-includes/load.php(1280): do_action()#19 [internal function]: shutdown_action_hook()#20 {main}  thrown in /home/public_html/wp-content/plugins/woocommerce/src/Utilities/ArrayUtil.php on line 95
       ```
   
    -  This reply was modified 1 year, 9 months ago by [mcdeth](https://wordpress.org/support/users/mcdeth/).
 *  Plugin Contributor [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/)
 * (@erania-pinnera)
 * [1 year, 9 months ago](https://wordpress.org/support/topic/spawn-sync-4k-requests/#post-17989939)
 * Hi there, [@mcdeth](https://wordpress.org/support/users/mcdeth/),
 * Could you please post your site URL here so that we can have a look? If you want
   it to remain private, you can also contact us via [contact form](https://jetpack.com/contact-support/?rel=support&hpi=1).
   If you choose to reach out directly, please include a link to this thread. Thanks!
 *  Thread Starter [mcdeth](https://wordpress.org/support/users/mcdeth/)
 * (@mcdeth)
 * [1 year, 9 months ago](https://wordpress.org/support/topic/spawn-sync-4k-requests/#post-17989946)
 * Hi, the site URL of my client is whybaby.pl. During these API calls, I noticed
   messages about a database upgrade and thumbnail regeneration. I’m not sure why
   it forced the regeneration of thumbnails, especially since none of the “force
   regenerate thumbnails” plugins were active at the time.
 *  Plugin Contributor [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/)
 * (@erania-pinnera)
 * [1 year, 9 months ago](https://wordpress.org/support/topic/spawn-sync-4k-requests/#post-17990191)
 * Hi there, [@mcdeth](https://wordpress.org/support/users/mcdeth/),
 * Thanks a lot for sharing the site URL. The good news is that Jetpack appears 
   to be working beautifully, which is a great place to start.
 * The `/wp-json/jetpack/v4/sync/spawn-sync` entries you’re noticing in your server
   logs are essential to Jetpack’s sync functionality. This mechanism ensures your
   website’s content remains synchronized with the [WordPress.com](http://wordpress.com/)
   cloud, a crucial aspect for many Jetpack features to operate effectively.
 * A 409 error generally suggests that the requesting party, in this scenario, your
   website, has severed the connection prior to the server completing the request.
   This can occur from several factors, including timeouts, network-related problems,
   or a server setting disrupting the connection.
 * The initial step I suggest is to request your hosting provider to add Jetpack’s
   IP addresses to their allowlist, according to the instructions provided in this
   guide: [https://jetpack.com/support/how-to-add-jetpack-ips-allowlist/](https://jetpack.com/support/how-to-add-jetpack-ips-allowlist/).
 * <span style=”box-sizing: border-box; margin: 0px; padding: 0px;”>The fatal Error
   you reported seems related to the WooCommerce plugin, so our [dedicated Woo suppo](https://wordpress.org/support/plugin/woocommerce/)
   </span>[rt team should be able to better address it](https://wordpress.org/support/plugin/woocommerce/).
   The database update and the thumbnail regeneration reports made me think the 
   two things are related, so I’d recommend mentioning both of them.
 * Hope that helps! Let us know how it goes with the 409 errors!
 *  Thread Starter [mcdeth](https://wordpress.org/support/users/mcdeth/)
 * (@mcdeth)
 * [1 year, 9 months ago](https://wordpress.org/support/topic/spawn-sync-4k-requests/#post-17990196)
 * Alright, thanks a lot for detailed help!
 *  Plugin Contributor [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/)
 * (@erania-pinnera)
 * [1 year, 9 months ago](https://wordpress.org/support/topic/spawn-sync-4k-requests/#post-17990994)
 * Hey [@mcdeth](https://wordpress.org/support/users/mcdeth/),
 * You’re very welcome! Let us know if that helped you solve the Jetpack problem,
   and I wish you a speedy resolution with the WooCommerce one 🙂

Viewing 6 replies - 1 through 6 (of 6 total)

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 * 9 replies
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 * Last reply from: [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/)
 * Last activity: [1 year, 9 months ago](https://wordpress.org/support/topic/spawn-sync-4k-requests/#post-17990994)
 * Status: resolved