
Working with Data 329
Adding Topology Types
Adding Topology Types
vFoglight transforms monitoring data into models. A model is a set of objects and
relationships designed to represent a monitored resource and its parts. Topology
describes the logical and physical relationships between data nodes in a model. At run-
time, vFoglight dynamically builds topology models based on data about your system
that is collected by vFoglight agents. Topology models provide the context for the
metrics sent by the agents to the vFoglight Management Server. The set of topology
types that exist in your environment depends on your monitoring needs, reflected in the
type and nature of cartridges that you use for data collection. If you need additional
topology types, you can add them to vFoglight as required using the Adding Topology
Types dashboard.
Use the XML syntax when defining a topology type. For example:
<type name="ApacheSvr_Transactions" extends="F4Table">
<property name="IntervalTransactions" type="Metric"
is-containment="true" />
<property name="TransactionRate" type="Metric"
is-containment="true" />
<property name="TransactionTag" type="String"
is-identity="true" />
<property name="TransactionThroughput" type="Metric"
is-containment="true" />
<property name="TransactionThroughputRate" type="Metric"
is-containment="true" />
</type>
Important Topology types can only be removed by uninstalling the cartridge that contains the types
that you want to delete.
To add topology types:
Note This procedure continues from “Getting Started with the Administration Module” on page 32.
1
Ensure that the navigation panel is open.
To open the navigation panel, click the right-facing arrow on the left.
2
On the navigation panel, under Dashboards, choose Administration > Data >
Add Topology Type.
The Add Topology Type dashboard appears in the display area.
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