Boundary Apache HTTP Server Plugin

Collects metrics from a Apache HTTP server instance. See video walkthrough.

Prerequisites

OS	Linux	Windows	SmartOS	OS X
Supported	v	v	v	v

Boundary Meter Versions V4.0 Or Greater

• To install new meter go to Settings->Installation or see instructons.
• To upgrade the meter to the latest version - see instructons.

Boundary Meter Versions Less Than V4.0

Runtime	node.js	Python	Java
Required	+

• How to install node.js?
• Apache HTTP Server must be configured to run the server-stats module.

Plugin Setup

• The Boundary Apache HTTP Server plugin depends on the server-stats module for collecting metrics. The sections below provide the procedures to enable and configure the server-stats module.

Enable the server-status Module

1. Modify the Apache HTTP Server httpd.conf by adding the following:

   <Location /server-status>
      SetHandler server-status
   </Location>

Secure the EndPoint with a User Name and Password

1. Create as password file to secure the endpoint. The example shown here is using the path /etc/httpd/my_password_file.

   $ sudo htpasswd -c /etc/httpd/my_password_file
   

2. Enable authentication by modifying the <Location/> added previously as shown here :

   <Location /server-status>
      SetHandler server-status
      AuthType basic
      AuthName "Apache status"
      AuthUserFile /etc/httpd/my_password_file
      Require valid-user
   </Location>

3. Restart Apache HTTP server reload the httpd.conf configuration.
4. Verify that statistics are being collected by visiting http://yourserver.com/server-status
5. To also capture the 'requests per second' metric, add ExtendedStatus On outside of your <Location /> block:

   <Location /server-status>
      SetHandler server-status
      AuthType basic
      AuthName "Apache status"
      AuthUserFile /etc/httpd/my_password_file
      Require valid-user
   </Location>
   ExtendedStatus On

Plugin Configuration Fields

Field Name	Description
Server-Status URL	The URL endpoint of where the Apache HTPP server statistics are hosted.
Username	If the URL is password protected, what username should the plugin use to authenticate
Password	If the URL is password protected, what password should the plugin use to authenticate
Poll Interval	How often (in milliseconds) to poll for metrics (default: 1000).
Source	Name identifying the specific instance of Apache HTTP server which is displayed in dashboards

Metrics Collected

Tracks the following metrics for apache

Metric Name	Description
Apache Requests	The number of Apache Accesses
Apache Total Bytes	bytes transferred
Apache Bytes per Request	average bytes per request
Apache CPU
Apache Busy Workers	the number of busy workers
Apache Idle Workers	the number of idle workers
Apache busy to idle ratio	The ratio of busy workers / (busy + idle workers)

Dashboards

Apache Server

References

None