APACHE

Collects and displays the rate of free Apache slots and in Reading state. This control changes state if the number of free slots becomes too low, or if the rate of slots in Reading state is too high. Configuration: timeout in seconds of access to the Apache server, thresholds for the free slot rate, threshold for the R state slot rate.

Controls the rate of requests that the Apache server has served beyond the specified time. Alerts if the rate exceeds a threshold. The number of slow requests is reset to zero when the Apache log file is recycled. Configuration: SSH monitoring account, path to the Apache access log file, duration in seconds to determine if a request is slow, alert and critical thresholds.

Collects the number of bytes per second on an Apache web server. This control notifies when a threshold is exceeded. Configuration: Apache server port, status timeout in seconds, Apache binary path, Apache pid path/file name, status page name, HTTPS access to status page, alert threshold, critical threshold.

Checks the status of a load balancing pool performed with Apache's mod_proxy module. Alerts you if a problem occurs or if the number of unreachable nodes is greater than a threshold expressed as a percentage of the pool.

Configuration: URL of the status page, HTTP monitoring account, alert thresholds.

Controls the status of the mod_jk connector to the various workers and the load balancing process. Alert in case of problems.

Configuration: URL to access the jkstatus page, login credentials for this page.

Collects the number of requests per second on an Apache web server. This control notifies when a threshold is exceeded. Configuration: Apache server port, status timeout in seconds, Apache binary path, Apache pid path/file name, status page name, HTTPS access to status page, alert threshold, critical threshold.

Collects and displays the number of idle/busy workers. This control notifies if the number of idle workers becomes too low. Configuration: Apache server port, status timeout in seconds, Apache binary path, Apache pid path/filename, status page name, HTTPS access to status page, alert threshold (above critical threshold), critical threshold.