Metrics are parameters or comparison standards used by the Avi Load Balancer to continually monitor subsystems. They trigger alerts, notify administrators of important information, and are the building blocks of configuration automation.
Metrics apply to one or more of the following types of objects:
Virtual Services
Service Engines (SEs)
Pools
Types of Metrics
The Analytics view of the Controller application presents information regarding performance metrics. The following types of metrics are collected:
- Virtual Service Metrics
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Provides analytic data for client-side connections of the virtual service.
- Pool Metrics
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Provides data to assess and measure the performance of back-end pool servers.
- SE Metrics
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SE metrics include information on connection, bandwidth, transaction, and memory usage for an SE.
- Controller Metrics
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This includes CPU, memory, and disk usage information of all Controller nodes in a Cluster, tracked every minute.
- User-defined Metrics
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Metrics can be customized to cater to the specific needs of customers. Custom metric data can be obtained through API calls.
- WAF Security Metrics
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Metrics analytics data obtained for intelligent Web Application Firewall (WAF) are included in WAF security metrics.
The following sections explain ways to access different metrics in detail from the UI. For more information on metrics available through API, see Accessing Metrics through API.