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Foglight for Infrastructure 5.9.5 - Infrastructure Utilities User Guide

Monitoring Web transactions Monitoring network devices

Transaction tile

Purpose

The Network Device tile shows summarized information about the performance of a network device. The tile bar indicates the device name.

How to get here
•
On the navigation panel, click Services > Service Operations Console.
On the Service Operations Console that appears in the display area, select a Web Monitor service, and ensure that the Transaction tab is open.
 
•
On the navigation panel, click APM > Transactions.
On the Transactions dashboard that appears in the display area, select a Web Monitor service.

One or more transaction tiles appear in the display area.

Description of the view
 
Table 35. Description of the view
Data displayed
•
Alarms. The counts of Fatal, Critical, and Warning alarms.
 
•
Health history bar. The color-coded bar represents the alarm state of the monitored application over the time range period selected in the Service Operations Console dashboard. The color of the bar changes over that period depending on the alarm state. Red indicates that the monitored application is in Fatal state, orange indicates Critical, yellow means Warning, and green is for the Normal State.
 
•
Last HTTP Status. The most recent HTTP status code, indicating the result of the most recent transaction with the monitored Web site.
 
•
Last Response-Time. The amount of time the Web Monitor Agent waited for a response from the monitored Web site during the most recent data collection attempt.
 
•
Page Availability. The percentage of time the Web site was available when the Web Monitor Agent instances configured to monitor this Web site attempted to collect information.
 
•
Response Time. The amount of time the Web site takes to respond to monitoring requests, over the selected time range. High values in the graph can indicate potential bottlenecks that likely need to be investigated.
 
•
Title bar. The name of the Web transaction.
Where to go next

Drill down on:

 
•
Title bar. For more information, see Transaction dialog box.

Transaction dialog box

Purpose

The transaction dialog box shows a series of charts displaying the response time statistics of the selected transactions, accompanied with additional performance indicators, such as the number of errors and the most recent HTTP status. This can give you a better idea of how the selected Web site is performing and alerts you about potential performance problems, if they exist. For example, high response times often suggests higher loads that may require further investigation.

How to get here
1
Complete one of the following steps:
•
On the navigation panel, click Services > Service Operations Console.
On the Service Operations Console that appears in the display area, select a Web Monitor service, and ensure that the Transaction tab is open.
 
•
On the navigation panel, click APM > Transactions.
On the Transactions dashboard that appears in the display area, select a Web Monitor service.
One or more transaction tiles appear in the display area.
2
Click the title bar of a transaction tile.
The transaction dialog box appears.
Description of the view
 
Table 36. Description of the View
Data displayed
•
Alarms. The counts of Fatal, Critical, and Warning alarms.
 
•
Average Response Time. The average amount of time all instances of the Web Monitor Agent configured to monitor this Web site wait for a response from the monitored Web site.
 
•
Health history bar. The color-coded bar represents the alarm state of the monitored application over the time range period selected in the Service Operations Console dashboard. The color of the bar changes over that period depending on the alarm state. Red indicates that the monitored application is in Fatal state, orange indicates Critical, yellow means Warning, and green is for the Normal State.
 
•
Last HTTP Status. The most recent HTTP status code, indicating the result of the most recent transaction with the monitored Web site.
 
•
Last Page Availability. The percentage of time the Web site was available when the Web Monitor Agent attempted to collect information from it during the most recent data collection attempt.
 
•
Last Polling Time. The date and time of the most recent data collection.
 
•
Response Time. The amount of time the Web site takes to respond to monitoring requests, over the selected time range. High values in the graph can indicate potential bottlenecks that likely need to be investigated.
 
•
Title bar. The name of the Web transaction.
 
•
Total Errors. The total number of execution attempts that resulted in errors all instances of the Web Monitor Agent configured to monitor this Web site encountered during the selected time range.
 
•
Total Executions. The total number of execution attempts all instances of the Web Monitor Agent configured to monitor this Web site performed during the selected time range.
 
•
Total Success. The total number of execution attempts that resulted in success all instances of the Web Monitor Agent configured to monitor this Web site encountered during the selected time range.
Where to go next

Drill down on:

 
•
More Details. For more information, see Transaction at All Locations drilldown view.
 

Monitoring network devices

Foglight Net Monitor provides device availability and packet loss monitoring between monitoring locations and network devices. Use it to:

•
Monitor the network against service level agreements.
•
Check for the presence of devices that are critical to your operating environment.

When you deploy Foglight Net Monitor, a set of predefined dashboards enables you to view the performance of the monitored network devices. This allows you to ensure consistent network device performance by re the collected statistics. Better management of your network devices can be achieved when you are alerted to potential problems before end users are affected.

Foglight Net Monitor relies on the Net Monitor Agent to collect data. The agent collects transaction information from monitored devices and visualizes the collected data in Foglight. You need to configure one agent instance on each monitored location.

Start by installing Foglight Net Monitor on the Management Server, deploying the Net Monitor Agent package, and creating agent instances on one or more hosts. For installation instructions, see the Foglight Infrastructure Utilities Release Notes.

Foglight Net Monitor uses the ICMP (Internet Control Message Protocol) service to monitor network devices. You need to configure this service to enable communication with network devices. For more information, see Configuring the ICMP service for monitoring.

As a next step, you can specify the devices that you want to monitor using the Devices Management dashboard. In addition to managing the collection of monitored network devices, this dashboard allows you to edit the data collection settings. For more information, see Managing monitored network devices.

Next, navigate to the Performance Browser. This dashboard displays the state of your system performance, providing a visual representation of the status of the monitored network devices and locations. Using this dashboard on a daily basis you can obtain an in-depth understanding of the state of your monitored network devices. Monitoring the same collection of network devices from different agent locations allows you to rule out any issues that may be related to host connectivity rather than device responsiveness. For more information, see Investigating the performance of network devices.

The Net Monitor Agent is equipped with a set of properties that affect its running state. You can make changes to them, as required. For more information about the Net Monitor Agent properties, see Configuring the agent properties.

For additional information, see the following topics:

•
Generating reports
•
View reference

Configuring the ICMP service for monitoring

Foglight Net Monitor uses the ICMP (Internet Control Message Protocol) service to communicate with network devices. There are two versions of this service that are available for use:

•
Foglight Agent Manager ICMP service uses the udp2icmp application, that is installed with the Agent Manager, and can be used to issue ICMP messages to target devices.
•
OS-specific ICMP services use the following OS-level commands to issue ICMP messages to target devices:
•
ping
•
tracert (Microsoft Windows only) or traceroute (Linux only)

Both types of ICMP services are started through an executable application and require proper permissions to execute. For more information, see Configuring the Agent Manager ICMP service and Configuring OS-Level ICMP services.

By default, Foglight Net Monitor uses the Agent Manager ICMP service for monitoring. OS-level ICMP services can be configured, if needed, using the following option

-Dnetmonitor.icmpprovider=OS

There are two ways to specify this option:

•
On the command line, when you start up the Agent Manager. For example:
fglam -s -Dnetmonitor.icmpprovider=OS
•
As a JVM system property, in the <fglam_home>/state/default/config/baseline.jvmargs.config file. For example:
-Dnetmonitor.icmpprovider=OS

Other options are available. For more information, see ICMP service command-line options.

ICMP service command-line options

The following table describes the Foglight Net Monitor parameters that can be used to configure the ICMP service. You can specify these options on the command line, or in an Agent Manager configuration file. For more information, see Configuring the Agent Manager ICMP service.

 
Table 1. Foglight Net Monitor parameters used to configure the ICMP service
Option
Description
netmonitor.icmpprovider

All agent instances managed by this Agent Manager uses the OS-level ICMP service. This type of ICMP service uses ping and traceroute/tracert commands. The login user must have proper permissions to execute these commands, without providing a password.

netmonitor.ping.path

Unix/Linux only. If the login user does not have the permissions to execute the ping command, use this option to specify the command path.

netmonitor.traceroute.path

Unix/Linux only. If the login user does not have the permissions to execute the traceroute command, use this option to specify the command path.

netmonitor.threadpool.size

Unix/Linux only. Sets the thread pool size. You should specify at least 10.

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