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| Term | What we mean by that? |
| Metric | A Measurement of a particular characteristic. Ex: %ge of CPU used, Amount of Bandwidth used, etc. Complete definition can be found here |
| Event | A record of something that has happened - A simple immutable fact. Example: Link has gone down. A packet from a flow is dropped, etc. Complete definition can be found here |
| Agent | Software that runs on a node/system that needs to be monitored. |
| Client Node | A node that is monitored (Node on which agent runs) |
| Server Node | A node that collects metrics and events from the client node. |
| Sampling Interval | How frequently the metrics are sent. |
| Push Mode | Fetching of events by subscribing |
| Poll Mode | Fetching of events via polling. |
| Writing of Metrics/events | sending/outputting of metrics or events. |
| Reading of Metrics/events | receiving/reading of measrements |
| Logging of Metrics/events | Logging of monitored/received metric or event |
| Metric Types (data source types) | Guage: Value stored as-is |
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