Rate limiting is skipped for metrics when there was a cached rate limit.

[Dav1dde]

The following code:

relay/relay-server/src/services/project.rs

Lines 619 to 641 in 38a79bd

	let quotas = state.config.quotas.clone();
	let extraction_mode = state.get_extraction_mode();
	let buckets = match MetricsLimiter::create(buckets, quotas, scoping, extraction_mode) {
	Ok(mut bucket_limiter) => {
	let cached_rate_limits = self.rate_limits().clone();
	#[allow(unused_variables)]
	let was_rate_limited = bucket_limiter.enforce_limits(
	&cached_rate_limits,
	metric_outcomes,
	outcome_aggregator,
	);
	#[cfg(feature = "processing")]
	if !was_rate_limited && self.config.processing_enabled() {
	// If there were no cached rate limits active, let the processor check redis:
	envelope_processor.send(RateLimitBuckets { bucket_limiter });
	return;
	}
	bucket_limiter.into_buckets()
	}
	Err(buckets) => buckets,
	};

If there is a single cached rate limit we skip checking non-cached rate limits. For example if there is a cached rate limit for spans we won't check the rate limits for transactions.