After you have configured system probes, alarms, and/or an external third-party hardware load balancing device in ColdFusion, you can use the Server Configuration page to view and control the operating status of these devices. To access this page, in the ColdFusion Administrator, click Tools>Web Servers.
After your monitoring devices and alarms are configured in ColdFusion, use this page to:
Monitor Operating Status. ColdFusion provides a number of controls on this page so you can easily determine the operating status of each Web server, system probe, or external hardware load balancing device currently configured on your ColdFusion Server system. A detailed description of each of these controls are provided in the following section entitled Anatomy of the Server Configuration page.
Note: ColdFusion's Server Probes help you verify the health and operation of resources in your web site. An external load balancing device such as Cisco's Local Director can be integrated with ColdFusion to provide comprehensive load balancing and failover support for the servers in you local Web site. For more information about how to configure these devices in ColdFusion see the Server Probe and Load Balancing Hardware Integration help topics.
Monitor and Manage Incoming Server Traffic. Use the threshold setting on the Server Configuration page to manage incoming web site traffic. For example, if you have Cisco Local Director configured you can use this setting to control when that device redirects traffic to another Web server. Or, if you have alarms set up and a system probe configured, you can use this setting to help manage and monitor the incoming traffic at that site and alert you of when the traffic exceeds the threshold specified. You can also monitor the server load (after a threshold value is configured) by examining the value presented in the Load % column on this page.
Place a Web Server in Maintenance Mode (Restrict Traffic). Use the Enabled or the Restrict setting on this page to instruct a configured Cisco Local Director box not to send traffic to a server. For example, by clearing the Enabled setting when a Cisco Local Director box is configured, you can conveniently place a Web server in maintenance mode by stopping the Local Director box from sending all incoming traffic to that server. To enable the Local Director box to send traffic to the Web server, check the Enabled setting .
To familiarize yourself with the information presented on this page,
see the following annotated image:
Description
Server Name. Shows a list of the Web servers that ColdFusion found configured on your local system.
State. Shows the current operating status of each configured web server on your system. Available is shown whenever the server is running and receiving user requests. Busy is shown whenever the server is suspended from processing user requests. Restricted is shown whenever (a) a probe fails and restricts a Web server from receiving user requests or (b) whenever you restrict Cisco Local Director from processing requests to a Web server.
Probes. Shows the current operating status of one or more configured probe(s) per server. Red is shown when a probe fails. Yellow is shown when a probe is suspended. Green is shown when a probe is available. Grey is shown when the probe is disabled (or possibly when the probe is not properly configured to monitor the server).
Load %. This field displays the percentage of traffic hitting the web server. Note that if you have a Cisco Local Director box configured, the load is monitored and reported to the Cisco Local Director device. If you do not have a Cisco Local Director box configured, the ColdFusion Server application load is reported here but it has no effect on the Web site traffic. In order for a probe to monitor and report the web server load, the Enabled setting must be checked and the probe must be properly configured to monitor the server.
Threshold %. An user-defined field for specifying a threshold value. To specify a value, click the field and type a value.
Enabled. If you have a Cisco Local Director box configured, use this control to enable or restrict traffic to the server. If you do not have a Cisco Director box configured, use this setting to instruct the probe to monitor the ColdFusion Server application load; otherwise, Disabled is shown in the Load% field.
Load Balancing Device. Identifies whether a Cisco Local Director box is configured per server. None is shown whenever this device is not configured. The DNS name of the device is shown whenever this device is configured. The name of the device is shown grayed-out whenever the Enabled check box for that device is cleared (disabled)..
Restrict. When this control is enabled (checked), the load balancing device will restrict all traffic to corresponding web server. This option is by default disabled (clear).