Tracing Limits

The Lumigo tracers for Lambda and the Lumigo OpenTelemetry distros have limit mechanisms in place to make sure the affect on runtime is minimal.

Lambda tracers

Max span field size

Every field in every span (e.g., Event body, Event headers) is limited to 10KB. When a field exceeds this limit, its data is truncated.

Max invocation collected data

For every Lambda invocation, the amount of data collected by the tracer is limited to 500KB, or 1000KB if an error is detected in the invocation. When this limit is exceeded, the tracer omits some of the data it has collected, starting with data inside spans, and if the limit is still exceeded, it also omits whole spans (including span metadata).

OpenTelemetry distros

Max span field size

Every field in every span (e.g., Request body, Request headers) is limited to 2KB. When a field exceeds this limit, its data is truncated.