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Foglight Agent Manager 5.9.7 - Foglight Agent Manager Guide

Configuring the embedded Agent Manager Installing external Agent Managers
Understanding how the Agent Manager communicates with the Management Server Deploying the Agent Manager cartridge Downloading the Agent Manager installer Installing the Agent Manager Starting or stopping the Agent Manager process Frequently asked questions
Configuring the Agent Manager Advanced system configuration and troubleshooting
Configuring Windows Management Instrumentation (WMI) Configuring Windows Remote Management (WinRM) UNIX- and Linux-specific configuration
Monitoring the Agent Manager performance Deploying the Agent Manager to large-scale environments

Memory Usage tab

The Memory Usage tab displays the amount of available memory and swap space for a selected Agent Manager instance. For example, a shortage of swap space often suggests a memory shortage, while a decline in the available memory may indicate a memory leaking process.

Figure 12. Memory Usage tab

CDT Submission tab

The CDT Submission tab displays information about the complexity of data that agents collect and submit for Canonical Data Transform (CDT) processing. Excessively large values or sudden increases in this data can result in performance problems.

Figure 13. CDT Submission tab

The following metrics are displayed for each agent:

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CDT Node Count: The number of internal data nodes produced by the CDT. Typically, there is one node for each topology object and its metrics, and one global (root) node in the tree.
This value takes into consideration the count of the topology object submission events that have associated observations or metrics. Topology objects that do not have any metrics associated with them may go through the CDT without affecting this count. Additionally, one topology object may be submitted several times with different metric values, then counted several times.
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CDT Value Count: The number of metrics and/or observations produced by the CDT.
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Max Stack Depth: The depth of the data tree structure submitted by each agent instance. When a topology object in the data submission refers to another topology object, that increases the depth by one. When the second object refers to a third, the depth is increased again.
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Node Count: The number of nodes in the submission. It is a measure of how large the data submission is.
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Pre-processing time: The Agent Manager makes two passes over the data submitted by an agent. This is the time spent on the first pass, when the Agent Manager fills in references, validates the submission, calculates missing timestamps, and performs other pre-processing tasks.
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Processing time: The length of time it takes the Agent Manager to transfer the data submission to the CDT processing engine of the Management Server.

Queue Utilization tab

The Queue Utilization tab contains graphs that tell you how well the client queue and cache are performing. It displays the count of messages in the queue over time, its size, and the rate at which it discards messages. It also shows the rates of cache-related operations and memory consumption, and the percentage of time the client spends on cache-related operations.

Figure 14. Queue Utilization tab

 

Deploying the Agent Manager to large-scale environments

 
* 
IMPORTANT: The Agent Manager deployment script discussed in this section is provided as an example only, and is not supported as part of the product warranty.

This contains tips for deploying the Foglight® Agent Manager to a large number of UNIX® or Windows® hosts in your environment. It also discusses some of the deployment options you might want to consider.

Deploying the Foglight Agent Manager is a multi-step process that includes selecting and deploying an Agent Manager cartridge, downloading the Agent Manager installer, and installing the Agent Manager. The steps in this process are described in Installing external Agent Managers .

If you are planning to deploy the Agent Manager to multiple UNIX hosts, you can create a deployment script to simplify this process. An example of this type of script is outlined below, along with suggestions for how you could customize the script to suit your environment.

If you are planning to deploy the Agent Manager to multiple Windows hosts, it is likely that you need a software deployment tool. Suggestions for using this type of tool are provided below.

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