Metrics

QNSP exposes metrics for monitoring platform health and performance.

Observability Service Configuration

From apps/observability-service/src/config/env.ts:

Setting	Environment Variable	Default
Port	PORT	8105
Proxy timeout	OBSERVABILITY_PROXY_TIMEOUT_MS	15,000 ms
Max body size	OBSERVABILITY_PROXY_MAX_BODY_BYTES	10 MB

OTLP Upstreams

Signal	Environment Variable
Metrics	OTLP_METRICS_UPSTREAM_URL
Traces	OTLP_TRACES_UPSTREAM_URL
Logs	OTLP_LOGS_UPSTREAM_URL

Metric Types

Counters

Monotonically increasing values:

• qnsp_requests_total
• qnsp_errors_total
• qnsp_auth_attempts_total

Gauges

Point-in-time values:

• qnsp_active_connections
• qnsp_cache_size_bytes
• qnsp_queue_depth

Histograms

Distribution of values:

• qnsp_request_duration_seconds
• qnsp_encryption_duration_seconds
• qnsp_response_size_bytes

Key metrics

Metric	Type	Description
qnsp_requests_total	counter	Total requests by service, method, status
qnsp_request_duration_seconds	histogram	Request latency
qnsp_errors_total	counter	Errors by type
qnsp_rate_limit_hits_total	counter	Rate limit triggers
qnsp_auth_success_total	counter	Successful authentications
qnsp_kms_operations_total	counter	KMS operations by type

Labels

Common labels:

• service: Service name
• method: HTTP method
• status: HTTP status code
• tenant_id: Tenant identifier
• operation: Operation type

Endpoints

The observability service is an OTLP ingestion proxy (it forwards telemetry to your configured upstream collectors).

OTLP ingest endpoints:

POST /otlp/v1/metrics
POST /otlp/v1/traces
POST /otlp/v1/logs