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Foglight Experience Monitor 5.8.1 - Installation and Administration Guide

Installing and configuring Multi-appliance clusters Configuring the appliance Specifying monitored web traffic Transforming monitored URLs Managing applications Foglight components and the appliance Using the console program Troubleshooting the appliance Appendix: Third party software Appendix: Dell PowerEdge system appliance

Entering a permanent license key

If a permanent license key has already been installed on your appliance skip this step of the Setup Wizard and proceed directly to the next step. If your appliance has only a temporary key the Appliance License page of the Setup Wizard appears as shown in the following illustration.

Figure 7. Appliance License page

To obtain a permanent license key, you need to provide Technical Support with the Host Id as shown on this page. Once you receive the license key paste it into the License Key field and click Next to continue.

Configuring the Appliance Type

The next Wizard Setup step is the Type page.

Figure 8. Type page

The appliance must be configured either as a stand-alone machine, or as part of a multi-appliance cluster. Stand-alone appliances do not communicate with other appliances, whereas appliances that are part of a cluster make use of a portal to aggregate metrics from probes, and present a unified view of the cluster of appliances. For more information, see Multi-appliance clusters.

You can configure your appliance for one of three distinct roles. First, it can function as a portal that provides a unified database and configuration repository for a cluster of appliances. Portals provide a unified view of the metrics collected by multiple probes, they do not monitor network traffic. Second, it can function as a monitoring probe in a multi-appliance cluster. Probes monitor network traffic based on the configuration specified on the portal, and transmit all of their collected metrics to the portal. Third, it can function as a stand-alone monitor. Stand-alone monitor network traffic and save collected metrics into a database on the same appliance. They do not communicate with other appliances.

When you change the appliance type using this page, a pop up window appears informing you that the process may take a few minutes.

 
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IMPORTANT: To configure an appliance as a probe, the system must be able to establish a network connection to the portal. If an error message appears during the process the most likely cause is that the appliance could not contact the portal using the IP address provided.
Configuring a Stand-alone

If you are installing a single appliance on your site, or one of multiple appliances that are not going to share metric data, select Stand Alone Monitor, then click Next to continue configuring the appliance.

Configuring a Portal

The following procedure sets up the appliance to function as a Portal.

To configure a Portal:
1
If you are installing an appliance as part of a multi-appliance cluster, and would like the current appliance to act as the portal, select Portal.
2
In the Data port box, type the TCP port number that the appliance will use for data communication with other appliances.
3
This can be any port number that is not in use on your network or by the appliance itself for other purposes. Be careful that you do not use a port number that will be blocked by your firewalls or other security devices on your network. The web console displays an error message when you choose a port that is already in use on the appliance.
4
In the Control port box, enter the TCP port number that all appliances in the cluster will use to communicate control and configuration information using MySQL® protocol. The default setting is 3306. When possible use the default setting as it will avoid the need for port forwarding on the portal.
In a multi-appliance environment, all control and configuration settings are stored in the MySQL database on the portal. You can use any port number that is not in use by the appliance or in use by the network for other purposes.
5
Select the Encrypt using SSL check box if you want the data communications between the portal and probes to be encrypted using SSL.
 
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NOTE: This setting does not affect control and configuration communication which is performed using unencrypted MySQL.
 
6
Select the Compress to minimize bandwidth check box if you want network communication between the probes and portals to use data compression.
This setting decreases the volume of network transfers but adds some amount of overhead required to compress and decompress the data.
7
Click Next to move to the next step of the Wizard.
When installing and configuring appliances as part of a multi-appliance environment, set up and configure the portal before configuring probes that connect to the portal.
 
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IMPORTANT: Portals and probes must use the same version of the software in order to communicate. Mixing versions is not supported. It is also not possible to mix 32-bit and 64-bit appliances in a multiple-appliance cluster.
Configuring a Probe

The following procedure sets up the appliance to function as a Probe.

To configure a Probe:
1
If you are installing an appliance as part of a multi-appliance cluster, and would like the current appliance to act as a probe, choose Probe.
2
In the Portal IP box, type the IP address of the appliance that you configured to serve as the portal.
3
In the Control port box, type the TCP port number that the probe uses to retrieve control and configuration information from the MySQL® database that is hosted on the portal.
This port number must match the number that was previously configured on the portal.
4
Click Next to move to the next step of the Wizard.

The server addition and discovery process found in the Setup Wizard is identical to configuration functionality that is used after installation. To further refine your server list, see Managing monitored servers.

Designating Time Servers

The Time Servers page allows you to identify one or more Network Time Protocol (NTP) servers. Setting NTP servers ensures accurate synchronization of the appliance’s internal clock to the correct time.

Figure 9. Time Servers page

 
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NOTE: Multi-appliance deployments require that the portal and probes maintain consistent clocks, in order to accurately aggregate data and synchronize monitoring. Stand-alone installations of the appliance also benefit from accurate timestamps for data aggregation, and the reporting of historical data.
Stand-alone configuration

Type up to three NTP server IP addresses in the Time Server (#1, #2, #3) boxes on this page. Click Apply when you have finished configuring NTP server information.

Multi-appliance configuration

If configuring a portal, the Setup Wizard is complete at this point. Proceed to Completing the Setup Wizard.

Configuring protocols

The Protocols page of the Setup Wizard enables you to specify which protocols and ports you would like the appliance to monitor. The appliances provides detailed metrics for HTTP and a standard set of metrics for all other TCP-based protocols.

Figure 10. Protocols page

HTTP on ports 80 and 8080 and HTTPS on port 443 are automatically configured as default protocols. If your site uses other ports, modify the list of ports for each protocol on this page.

If your site uses protocols, other than HTTP and HTTPS, click Add a Protocol to define the protocol and the ports it uses. After the protocols and port numbers are configured to match those used by your site, click the Next button to advance to the next step of the Setup Wizard.

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