Sampling

Sampling is the practice of discarding some traces or spans in order to reduce the amount of data that needs to be stored and analyzed. Sampling is a trade-off between cost and completeness of data.

To configure sampling for the SDK:

• Set the trace_sample_rate option of logfire.configure() to a number between 0 and 1, or
• Set the LOGFIRE_TRACE_SAMPLE_RATE environment variable, or
• Set the trace_sample_rate config file option.

See Configuration for more information.

import logfire

logfire.configure(trace_sample_rate=0.5)

with logfire.span("my_span"):  # This span will be sampled 50% of the time
    pass