wp cron job check working or not disable enable change schedule

Table of Contents

Problem with default wp cron job?

every page load its running. high cpu and low performance issues.

The WordPress cron is run by the wp_cron() function, which is hooked to run on the init hook, which runs on every page load.

wp_cron() is defined in wp-includes/cron.php and hooked in wp-includes/default-filters.php.

The wp_cron() function kicks off a wp_remote_post() request to /wp-cron.php. Some server configurations prevent scripts sending a request to the same domain like this however, so as an alternative you can set the ALTERNATE_WP_CRON constant to true. When enabled this redirects the user to the current URL but with ?doing_wp_cron= added to the URL, instead of the post request.

What happens if WP-Cron stops working?

WordPress, Themes, and Plugins would never know if a new version is out.
Scheduled posts would never get published, auto drafts never deleted

wp cron job plugins

WP-Cron Schedules

WP Crontrol

https://wordpress.org/plugins/wp-crontrol/

plugin-wp-cron-cron-scheduling

How to Add a Server Cron

root@instance-1:~# crontab -e
no crontab for root – using an empty one

Select an editor. To change later, run ‘select-editor’.
1. /bin/nano <—- easiest
2. /usr/bin/vim.basic
3. /usr/bin/vim.tiny
4. /bin/ed

open cron command

crontab -e

2nd

*/10 * * * * curl https://example.com/wp-cron.php?doing_wp_cron > /dev/null 2>&1

*/10 * * * * cd /var/www/example.com; php /var/www/example.com/wp-cron.php?doing_wp_cron > /dev/null 2>&1

wp rocket nginx github goal serve cached files directly without having to execute any PHP from WordPress

As you may already know, WP-Cron jobs are not real cron jobs and are executed only when you have visits on your site.

disable WordPress cron job,

add the following line to your wp-config.php: define('DISABLE_WP_CRON', true);

Then, manually a cron job every 15 minutes (it should be enough for most websites):

sudo crontab -e
0 * * * * su daemon -s /bin/sh -c "cd /opt/bitnami/apps/wordpress/htdocs/; /opt/bitnami/php/bin/php -q wp-cron.php"

*/15 * * * * wget -q -O - https://www.website.com/wp-cron.php?doing_wp_cron &>/dev/null

*/15 * * * * curl https://www.website.com/wp-cron.php?doing_wp_cron &>/dev/null

*/15 * * * * cd /home/user/public_html; php wp-cron.php &>/dev/null

Make sure you test that your tasks still run after this change!

How to Disable WP-Cron (wp-cron.php) & use system cron for Faster Performance

wget -q -O – https://domain.com/wp-cron.php?doing_wp_cron >/dev/null 2>&1

/dev/null 2>&1 disables email notifications.

https://raazkumar.com/wp-cron.php?doing_wp_cron

*/15 * * * * cd /var/www/html/raazkumar.com/; php -q wp-cron.php

*/15 * * * * curl https://www.raazkumar.com/wp-cron.php?doing_wp_cron &>/dev/null

disable wp cron nginx

wordpress check if cron is running

root@instance-1:~# */15 * * * * curl https://raazkumar.com/wp-cron.php?doing_wp_cron &>/dev/null

schedule a post If page get published then it means WP Cron is working.

The DISABLE_WP_CRON constant is set to true. WP-Cron spawning is disabled.

open wp-config.php:

remove or comment or set false

define(‘DISABLE_WP_CRON’, true);

How to Create a Cron Job and Execute at a Given Time

1 22-5 * * *

1st minute every 22nd hour to 5 hours 10PM – to 5AM run at low peak time of website traffic.

MIN    HOUR    Day of month    Month    Day of Week    Command
0-59   0-23       1-31          1-12       0-6       linux command or script

40 18 20 04 * /home/backups/full-backup

Explanation

40 – 40th Minute 18 – 06 PM 20 – 20th Day 04 – 4th Month (April) * – Every day of the week

once a day 00AM
0 0 * * *

disable wordpress cron server level at nginx

add in default server or specific server location of a website.

location = /xmlrpc.php {
deny all;
internal;
access_log /dev/null;
log_not_found off;
}

location /wp-cron.php { deny all; internal;
access_log /dev/null;
log_not_found off; }