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Telemetry is the systematic collection, transmission and analysis of operational data from distributed systems. It comprises metrics, logs and traces to enable observability of applications and infrastructure. Telemetry supports incident investigation, capacity planning and SLO monitoring across development and operations boundaries.
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Telemetry captures measurements and states from a remote system and transmits them for observation, control, or analysis.
Telemetry originated in spaceflight and the monitoring of distant technical systems whose measurements could not be read on site. As software systems became connected, it developed into automated transmission of states and events; OpenTelemetry brings this line together for distributed applications.
Create measurements at the source, add context, and transport them to a destination where they can be stored, analyzed, or visualized. Keep measurement, transport, and analysis distinct.
At its core, telemetry transmits measurements and states from a remote system for observation, control, or analysis.
It works by collecting data at the source, adding context, transmitting it, and storing or analyzing it at the destination.
In software, telemetry reveals application behavior and state. Ask: which signals do we need to assess operations and user experience reliably?
Telemetry makes the state of distributed applications and devices observable. It helps detect operational problems, understand usage, and test technical decisions against runtime data.
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