All challenges
Multiple ChoiceIntermediate 45s

Distributed tracing tail sampling rationale

Why do large tracing systems prefer tail-based sampling for error investigation?
Options
  1. 1It reduces the cardinality of span tags so the backend stores fewer unique series
  2. 2It removes the need to persist individual spans to the trace storage backend
  3. 3It guarantees one hundred percent retention of every trace collected across the fleet
  4. 4It can keep traces that errored or were slow, which head sampling cannot know in advance

Think you can answer under pressure?

Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.

Play this in a 3-minute battle