Title: Maximum simultaneous queues Last modified: June 12, 2026 --- # Maximum simultaneous queues * Resolved [techguysa](https://wordpress.org/support/users/techguysa/) * (@techguysa) * [1 week ago](https://wordpress.org/support/topic/maximum-simultaneous-queues/) * HI there passed week or so noticed * Maximum simultaneous queues already in progress (2 queues). No additional queues will begin processing until the current queues are complete. * For example now i have this snippet cause the ques piled up on past due like crazy. * add_filter( ‘action_scheduler_queue_runner_concurrent_batches’, ‘tg_custom_concurrent_queues’); function tg_custom_concurrent_queues( $concurrent_batches ) {return 2; // Bumps max simultaneous queues from 2 to 4} * add_filter( ‘action_scheduler_queue_runner_batch_size’, ‘tg_custom_as_batch_size’); function tg_custom_as_batch_size( $batch_size ) {return 100; // Increases items processed per batch from 100 to 150} * to help speed things up but even if its not on the stuff piles up as much as 2 days (if not more) its mostly gla jobs * also got this in my functions * add_filter( ‘action_scheduler_retention_period’, ‘t*****custom_as_retention’ ); * function t****_custom_as_retention( $period ) { return 3 * DAY_IN_SECONDS;} * i asterixed it out her but this to clear old logs etc * I had to go to terminal in cpanel and run * php wp-cli.phar action-scheduler run –batches=5 –force (i change the 5 to 50 or 100 depending on the servers performance) * everything is updated on teh site my sql database starts eating RAM when this piles up. (Slowly) *sql tables are about 7million i have a ton of stuff now originally had the advanced scheduler as recommened by one of your teams but seems to do nothing to help (so i purged it google gemini advised it can cause issues cause it starts looping). * and trust me optimised SQL to death. * Since i got past due up to date to 186 at 2am and now being 08:30 am its on 2552 and pending is on 3456 I find no suspiciouos bots attacking the site etc again its mostly gla/jobs/update_products/process_item (in past due its 1352) and woocommerce_run_product_attribute_lookup_update_callback( in past due its 1153) * Yes stock updates every few hours this issue cuase that stock updates to slow down to a point it takes close to an hour to run the updated even on 3000 skus and its just QTY updates if i do regular_price manually its fine but i know if its via real cron takes about an hour when these things piles up. * IF this helps (For security i changed the tables names to REDACTED NAME for here * ```wp-block-code WordPress Environment

WordPress address (URL): https://www.techguysa.co.za
Site address (URL): https://www.techguysa.co.za
WC Version: 10.8.1
Legacy REST API Package Version: ✔ 1.0.5
Action Scheduler Version: ✔ 3.9.3
Log Directory Writable: ✔
WP Version: 7.0
WP Multisite: –
WP Memory Limit: 4 GB
WP Debug Mode: –
WP Cron: –
WP Environment Type: production
Language: en_US
External object cache: ✔ Server Environment

Server Info: LiteSpeed
Server Architecture: Linux 5.14.0-611.16.1.el9_7.x86_64 x86_64
PHP Version: 8.3.31
PHP Post Max Size: 512 MB
PHP Time Limit: 2400
PHP Max Input Vars: 100000
cURL Version: 8.19.0
OpenSSL/3.5.1

SUHOSIN Installed: –
MySQL Version: 11.4.12-MariaDB
Max Upload Size: 512 MB
Default Timezone is UTC: ✔
fsockopen/cURL: ✔
SoapClient: ✔
DOMDocument: ✔
GZip: ✔
Multibyte String: ✔
Remote Post: ✔
Remote Get: ✔ Database

WC Database Version: 10.8.1
WC Database Prefix: Redacted NAME_
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Database Data Size: 994.19MB
Database Index Size: 984.12MB
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Redacted NAME_wc_order_operational_data: Data: 1.52MB + Index: 0.48MB + Engine InnoDB
Redacted NAME_wc_order_product_lookup: Data: 1.52MB + Index: 1.61MB + Engine InnoDB
Redacted NAME_wc_order_stats: Data: 1.52MB + Index: 0.88MB + Engine InnoDB
Redacted NAME_wc_order_tax_lookup: Data: 0.48MB + Index: 0.38MB + Engine InnoDB
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yaymail_template: 14 Security

Secure connection (HTTPS): ✔
Hide errors from visitors: ✔ Active Plugins (49)

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Advanced Database Cleaner: by SigmaPlugin – 4.1.1
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Index WP MySQL For Speed: by Oliver Jones
Rick James – 1.5.7

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Zapper Payments for WooCommerce: by Zapper Development – 2.1.13 Inactive Plugins (2)

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Microsoft Clarity: by Microsoft – 0.10.24 Dropin Plugins ()

maintenance.php: maintenance.php
object-cache.php: LiteSpeed Cache - Object Cache (Drop-in) Must Use Plugins (1)

Index WP MySQL For Speed Upgrade Filter for mu-plugins.: by – 1.5.3 Settings

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Force SSL: –
Currency: ZAR (R)
Currency Position: left
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 0
Taxonomies: Product Types: composite (composite)
external (external)
grouped (grouped)
simple (simple)
simple (simple-2)
simple (simple-3)
variable (variable)
woosb (woosb)

Taxonomies: Product Visibility: exclude-from-catalog (exclude-from-catalog)
exclude-from-search (exclude-from-search)
featured (featured)
outofstock (outofstock)
rated-1 (rated-1)
rated-2 (rated-2)
rated-3 (rated-3)
rated-4 (rated-4)
rated-5 (rated-5)

Connected to WooCommerce.com: –
Enforce Approved Product Download Directories: –
HPOS feature enabled: –
Order datastore: WC_Order_Data_Store_CPT
HPOS data sync enabled: ✔
Enabled Features: analytics
marketplace
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remote_logging
email_improvements Logging

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Handler: Automattic\WooCommerce\Internal\Admin\Logging\LogHandlerFileV2
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Level threshold: –
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Shop base: #11 - /shop/
Cart: #12 - /cart/ - Contains the [woocommerce_cart] shortcode
Checkout: #13 - /checkout/ - Contains the [woocommerce_checkout] shortcode
My account: #14 - /my-account/ - Contains the [woocommerce_my_account] shortcode
Terms and conditions: #3205 - /terms-and-condition/ Theme

Name: Woodmart Child
Version: 1.0.0
Author URL: http://xtemos.com
Child Theme: ✔
Parent Theme Name: Woodmart
Parent Theme Version: 8.5.1 – 8.5.2 is available
Parent Theme Author URL: http://themeforest.net/user/xtemos
Theme type: Classic theme
WooCommerce Support: ✔ Templates

Override: wp-content/themes/woodmart/woocommerce/archive-product.php
Override: wp-content/themes/woodmart/woocommerce/cart/cart-item-data.php
Override: wp-content/themes/woodmart/woocommerce/cart/cart.php
Override: wp-content/themes/woodmart/woocommerce/cart/cross-sells.php
Override: wp-content/themes/woodmart/woocommerce/cart/mini-cart.php
Override: wp-content/themes/woodmart/woocommerce/checkout/form-checkout.php
Override: wp-content/themes/woodmart/woocommerce/checkout/thankyou.php
Override: wp-content/themes/woodmart/woocommerce/content-product-cat.php
Override: wp-content/themes/woodmart/woocommerce/content-product.php
Override: wp-content/themes/woodmart/woocommerce/content-single-product.php
Override: wp-content/themes/woodmart/woocommerce/content-widget-product.php
Override: wp-content/themes/woodmart/woocommerce/global/breadcrumb.php
Override: wp-content/themes/woodmart/woocommerce/global/form-login.php
Override: wp-content/themes/woodmart/woocommerce/global/quantity-input.php
Override: wp-content/themes/woodmart/woocommerce/loop/add-to-cart.php
Override: wp-content/themes/woodmart/woocommerce/loop/loop-end.php
Override: wp-content/themes/woodmart/woocommerce/loop/loop-start.php
Override: wp-content/themes/woodmart/woocommerce/loop/no-products-found.php
Override: wp-content/themes/woodmart/woocommerce/loop/orderby.php
Override: wp-content/themes/woodmart/woocommerce/loop/pagination.php
Override: wp-content/themes/woodmart/woocommerce/loop/sale-flash.php
Override: wp-content/themes/woodmart/woocommerce/myaccount/form-login.php
Override: wp-content/themes/woodmart/woocommerce/myaccount/my-account.php
Override: wp-content/themes/woodmart/woocommerce/product-searchform.php
Override: wp-content/themes/woodmart/woocommerce/single-product/add-to-cart/grouped.php
Override: wp-content/themes/woodmart/woocommerce/single-product/add-to-cart/variable.php
Override: wp-content/themes/woodmart/woocommerce/single-product/meta.php
Override: wp-content/themes/woodmart/woocommerce/single-product/product-attributes.php
Override: wp-content/themes/woodmart/woocommerce/single-product/product-image.php
Override: wp-content/themes/woodmart/woocommerce/single-product/product-thumbnails.php
Override: wp-content/themes/woodmart/woocommerce/single-product/rating.php
Override: wp-content/themes/woodmart/woocommerce/single-product/related.php
Override: wp-content/themes/woodmart/woocommerce/single-product/sale-flash.php
Override: wp-content/themes/woodmart/woocommerce/single-product/tabs/description.php
Override: wp-content/themes/woodmart/woocommerce/single-product/tabs/tabs.php
Override: wp-content/themes/woodmart/woocommerce/single-product/title.php
Override: wp-content/themes/woodmart/woocommerce/single-product/up-sells.php
Override: wp-content/themes/woodmart/woocommerce/single-product-reviews.php
Override: wp-content/themes/woodmart/woocommerce/single-product.php
Override: wp-content/themes/woodmart/woocommerce/content-product-cat.php Admin

Enabled Features: activity-panels
analytics
analytics-scheduled-import
product-block-editor
experimental-iapi-mini-cart
coupons
core-profiler
customize-store
customer-effort-score-tracks
import-products-task
experimental-fashion-sample-products
shipping-smart-defaults
shipping-setting-tour
homescreen
marketing
mobile-app-banner
onboarding
onboarding-tasks
pattern-toolkit-full-composability
product-custom-fields
remote-inbox-notifications
remote-free-extensions
payment-gateway-suggestions
printful
shipping-label-banner
subscriptions
store-alerts
transient-notices
woo-mobile-welcome
wc-pay-promotion
wc-pay-welcome-page
launch-your-store

Disabled Features: product-data-views
experimental-blocks
experimental-iapi-runtime
coming-soon-newsletter-template
minified-js
product-pre-publish-modal
products-catalog-api
settings
async-product-editor-category-field
product-editor-template-system
use-wp-horizon
rest-api-v4

Daily Cron: ✔ Next scheduled: 2026-06-12 19:35:05 +02:00
Options: ✔
Notes: 213
Onboarding: completed Action Scheduler

Complete: 14,797
Oldest: 2026-06-11 23:15:11 +0000
Newest: 2026-06-12 06:31:55 +0000

Failed: 81
Oldest: 2026-06-11 21:46:19 +0000
Newest: 2026-06-12 06:10:55 +0000

In-progress: 1
Oldest: –
Newest: –

Pending: 3,396
Oldest: 2026-06-12 04:59:46 +0000
Newest: 2026-06-30 21:59:59 +0000 Status report information

Generated at: 2026-06-12 08:32:50 +02:00
``` * Also currently TOP via terminal the system has 8 cores 16gb ram (of which 4Gb for cpanel / wordpress and 1.5GB for Reddis and the rest for the OS and MariaDB currently its fine since i cleared everything at 2am i restarted the server to clear any caching on the OS since i dont have sudo/root rights on this one. * CPU wise i have 2 lsphp workers. the other 6 cores for everything else generally wordpress itself takes about 250-400mb Ram the rest is SQL / Caching. * top – 08:36:09 up 5:53, 0 users, load average: 1.88, 1.59, 1.50 Tasks: 6 total, 3 running, 3 sleeping, 0 stopped, 0 zombie%Cpu(s): 9.8 us, 4.1 sy, 0.3 ni, 85.7 id, 0.1 wa, 0.0 hi, 0.1 si, 0.0 stMiB Mem : 15729.8 total, 1045.1 free, 6911.2 used, 8120.7 buff/cacheMiB Swap: 0.0 total, 0.0 free, 0.0 used. 8818.6 avail Mem * ```wp-block-code PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND ``` * 99284 vapeand+ 20 0 616792 296504 147860 R 38.2 1.8 0:03.80 lsphp 99298 vapeand + 20 0 583836 266092 148692 R 36.2 1.7 0:02.86 lsphp2731 vapeand+ 20 0 1431184 857132 17184 S 3.3 5.3 11:47.50 redis-server45397 vapeand+ 20 0 327568 52468 40840 S 0.0 0.3 0:10.80 lsphp92919 vapeand+ 20 0 5352 4284 3356 S 0.0 0.0 0:00.02 bash92980 vapeand+ 20 0 7980 3900 3300 R 0.0 0.0 0:00.59 top Viewing 4 replies - 1 through 4 (of 4 total) * Plugin Support [Andy – a11n](https://wordpress.org/support/users/andyr94/) * (@andyr94) * [3 days, 22 hours ago](https://wordpress.org/support/topic/maximum-simultaneous-queues/#post-18939494) * Hey there, * Thanks for sharing all that detail, the environment info, the server specs, and the code snippets. That makes it much easier to pinpoint what is happening here. * **The root cause: WP-Cron is disabled** * From the environment details you shared in your post, we can see that **WP Cron is disabled** on your site. This is a critical detail because Action Scheduler relies on WP-Cron to automatically trigger its queue runner every minute. With WP-Cron disabled and no server-side cron replacement firing wp-cron.php on a schedule, Action Scheduler has no way to automatically process the queue. That explains why actions pile up so fast overnight and between your manual WP-CLI runs. * **The fix: automate your WP-CLI command via a cPanel cron job** * You are already doing exactly the right thing by running `wp action-scheduler run` through your cPanel terminal. The issue is that you are doing it manually. Since you have cPanel access, you can automate this by setting up a cron job through cPanel’s Cron Jobs interface to run that same command every minute or every two minutes. This way, the queue will be continuously drained without you having to intervene. * You can use the `--batch-size` and `--batches` flags to control how much work each run does, and the `--group` flag to prioritize specific action groups if needed. The full set of options is documented on the [**Action Scheduler WP-CLI page**](https://actionscheduler.org/wp-cli/). For background on why WP-CLI processing is the recommended approach for high- volume stores like yours, take a look at the [**Action Scheduler Background Processing at Scale guide**](https://actionscheduler.org/perf/). * Additionally, even with WP-Cron disabled, it is good practice to still have a server-side cron job triggering wp-cron.php so that other WordPress scheduled events continue to work normally. The [**WooCommerce guide on replacing WP-Cron with a real cron job**](https://woocommerce.com/document/automatewoo/replace-wordpress-cron-real-cron-job/) walks through how to set that up in cPanel. * **A quick note on your code snippets** * The comments in your concurrent batches filter say “Bumps from 2 to 4” while the function returns 2. Similarly, the batch size comment says “Increases from 100 to 150” while it returns 100. The actual values sent to Action Scheduler are whatever the function returns, so the comments and the code are out of sync. That said, once you have a cron-driven WP-CLI runner in place, these web-based queue tuning filters become much less important since WP-CLI bypasses those limits entirely when using the `--force` flag. * With 60,000+ products and Google for WooCommerce syncing each one individually through Action Scheduler, a cron-automated WP-CLI setup is really the way to go for a store at your scale. It will keep the queue moving around the clock without relying on site traffic or manual intervention. * Thread Starter [techguysa](https://wordpress.org/support/users/techguysa/) * (@techguysa) * [3 days, 21 hours ago](https://wordpress.org/support/topic/maximum-simultaneous-queues/#post-18939566) * HI yes cron disabled for real cron in wp-config * define( ‘DISABLE_WP_CRON’, true ); This is in $table_prefix =DATABASE NAME * and in cpanel cron jobs to run every 5 mins `cd /home/foldername/public_html&&/ usr/local/bin/php wp-cron.php >/dev/null 2>&1` * now after i made this post i did add this in cron jobs in cpanel * which works * set for every 1 min * `cd /home/folder name goes here/public_html && /usr/local/bin/php wp-cli.phar action-scheduler run >/dev/null 2>&1` * i did have the batch sizes changed before all that with 2 ques and batch of 100 then 150 (no real change on resources) the reason for the 2 is cause 8 cores on the server but its got 2 light speed workers. * i have had to use this in terminal to clear majority of it * after CD in its php wp-cli.phar action-scheduler run –batches=10 –force * the 10 was cause last time i used it was about 2000 jobs behind after that i implemented the cron for every 1 min its been behaving since i normally see it at 900 with only 180 past due which is weird cause those 180 are future jobs ( i.e sales falls away after x date) * Plugin Support [Andy – a11n](https://wordpress.org/support/users/andyr94/) * (@andyr94) * [3 days, 18 hours ago](https://wordpress.org/support/topic/maximum-simultaneous-queues/#post-18939840) * Thanks for the follow-up and for sharing the details of your cron configuration. It sounds like things are in much better shape now. * To clarify, your original server cron running wp-cron.php every 5 minutes was already handling standard WordPress scheduled events correctly. The piece that was missing was a dedicated cron for Action Scheduler’s WP-CLI queue runner, and adding that at a one minute interval is the right approach for a store of your size. With 60,000+ products and Google for WooCommerce syncing each one through the queue, having a WP-CLI runner continuously draining actions is exactly how high volume stores are meant to operate. The [Action Scheduler guide on Background Processing at Scale](https://actionscheduler.org/perf/) goes into more detail on why WP-CLI is the recommended approach once a store outgrows the default WP-Cron runner. * About the ~180 past due actions you mentioned, that count is completely normal. Some of those are actions that become due between cron runs, since there is always a small window between each execution. Others, as you noted, are tied to scheduled WooCommerce events like sale end dates that have not reached their trigger time yet. The [Action Scheduler FAQ](https://actionscheduler.org/faq/) confirms that having some past due actions is expected behavior. A count of 180 on a store with your volume is healthy. * One thing worth keeping in mind for ongoing maintenance is the wp action-scheduler clean command. Running it periodically will prune old completed and cancelled actions from the database, keeping the actionscheduler_actions table lean over time. That should help with the database size and RAM concerns you mentioned earlier. The full set of options for the clean command is documented on the [Action Scheduler WP-CLI page](https://actionscheduler.org/wp-cli/). * We are glad we could help get this sorted out. If you have a moment, we would really appreciate it if you could leave a review on the [Action Scheduler reviews page](https://wordpress.org/support/plugin/action-scheduler/reviews/#new-post). * Thread Starter [techguysa](https://wordpress.org/support/users/techguysa/) * (@techguysa) * [3 days, 18 hours ago](https://wordpress.org/support/topic/maximum-simultaneous-queues/#post-18939848) * its just weird that it couldnt keep up with everything seems via wordpress there are some restrictions but the method i got now seems to be better servers ram is holding steady as well without it would hang / freeze and ram would build up close to OOM if not OOM on MariaDB (cause everything is waiting in que) * unless im pushing the limits here Viewing 4 replies - 1 through 4 (of 4 total) You must be [logged in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fmaximum-simultaneous-queues%2F%3Foutput_format%3Dmd&locale=en_US) to reply to this topic. * ![](https://s.w.org/plugins/geopattern-icon/action-scheduler.svg) * [Action Scheduler](https://wordpress.org/plugins/action-scheduler/) * [Support Threads](https://wordpress.org/support/plugin/action-scheduler/) * [Active Topics](https://wordpress.org/support/plugin/action-scheduler/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/action-scheduler/unresolved/) * [Reviews](https://wordpress.org/support/plugin/action-scheduler/reviews/) * 4 replies * 2 participants * Last reply from: [techguysa](https://wordpress.org/support/users/techguysa/) * Last activity: [3 days, 18 hours ago](https://wordpress.org/support/topic/maximum-simultaneous-queues/#post-18939848) * Status: resolved