sampling term
keeping a subset of traces to control cost
Head-based: decide at trace start (cheap, may miss errors). Tail-based: decide after trace completes (expensive, sees full picture, can keep all errors). Production usually does some mix.
keeping a subset of traces to control cost
Head-based: decide at trace start (cheap, may miss errors). Tail-based: decide after trace completes (expensive, sees full picture, can keep all errors). Production usually does some mix.