Meaning
Data collection technique that records a subset of system events rather than the entire stream. Telemetry sampling reduces the volume of performance logs sent to monitoring tools by selecting representative data points at regular intervals.
Sampling Frequency
Choosing the right rate is a trade off between accuracy and overhead. With telemetry sampling, an engineer can still identify trends in machine behavior while using only a fraction of the network bandwidth. This method works for monitoring variables that change slowly, such as the temperature of a large industrial oven.
Transmission Volume
High volume manufacturing generates millions of data points every second from thousands of sensors. Without the use of telemetry sampling, the cost of processing and storing every single packet would be prohibitive. A well designed sampling plan maintains the ability to detect a decline in production yield without taxing the local edge servers.
This reduction in data load allows the network to maintain its performance even during peak operating hours.
Data Fidelity
Statistical risks include the potential to miss a transient event that happens between the sampled points. If a failure occurs during a gap in the telemetry sampling, the root cause might remain hidden. Practitioners must decide which metrics require full capture.
