CUNY Academic Commons

Ron Rennick

When active, this plugin logs unsuccessful results of wp_remote_post calls from wp-cron to a sites’s options table with an option name of ra_http_WP_Http_Streams + timestamp. The option_value contains the results of the call.
This plugin is intended to be enabled only on sites that are experiencing cron issues as a troubleshooting aid. Once the cron issue had been identified and corrected, the plugin should be deactivated. When finished troubleshooting you should also remove the option records created by this plugin using your database management tool.
In a WP network use the <a href="https://wordpress.org/extend/plugins/plugin-premium-package-manager-for-wp-networks/" rel="ugc">Plugin Manager</a> to hide this plugin and prevent site admins from activating it.
This plugin was written by <a href="http://ronandandrea.com/" rel="nofollow ugc">Ron Rennick</a> in collaboration with the <a href="http://dev.commons.gc.cuny.edu/" rel="nofollow ugc">CUNY Academic Commons</a>.

Cron Debug Log

Automattic

Mohammad Jangda

Erick Hitter

Thorsten Ott

This plugin allows you to take control over the execution of cron jobs. It’s mainly useful for sites that either don’t get enough comments to ensure a frequent execution of wp-cron or for sites where the execution of cron via regular methods can cause race conditions resulting in multiple execution of wp-cron at the same time. It can also help when you run into posts that missed their schedule.
This plugin implements a secret parameter and ensures that cron jobs are only executed when this parameter is existing.
<h3>Limitations</h3>
This plugin performs a <code>remove_action( 'sanitize_comment_cookies', 'wp_cron' );</code> call in order to disable the spawning of new cron processes via the regular WordPress method. If <code>wp_cron</code> is hooked in an other action or called directly this might cause trouble.

WP-Cron Control

This plugin allows you to take control over the execution of cron jobs.

Cron Debug Log vs WP-Cron Control