fix(ingest-limits): Incorrect ingested bytes counter usage (#17037)

pkg/limits/ingest_limits.go

@@ -52,13 +52,6 @@ var (
 		[]string{"tenant"},
 		nil,
 	)
-
-	tenantIngestedBytesTotal = prometheus.NewDesc(
-		constants.Loki+"_ingest_limits_ingested_bytes_total",
-		"The total number of bytes ingested per tenant within the active window. This is not a global total, as tenants can be sharded over multiple pods.",
-		[]string{"tenant"},
-		nil,
-	)
 )
 
 type metrics struct {
@@ -66,6 +59,8 @@ type metrics struct {
 
 	kafkaConsumptionLag prometheus.Histogram
 	kafkaReadBytesTotal prometheus.Counter
+
+	tenantIngestedBytesTotal *prometheus.CounterVec
 }
 
 func newMetrics(reg prometheus.Registerer) *metrics {
@@ -88,6 +83,11 @@ func newMetrics(reg prometheus.Registerer) *metrics {
 			Name:      "ingest_limits_kafka_read_bytes_total",
 			Help:      "Total number of bytes read from Kafka.",
 		}),
+		tenantIngestedBytesTotal: promauto.With(reg).NewCounterVec(prometheus.CounterOpts{
+			Namespace: constants.Loki,
+			Name:      "ingest_limits_tenant_ingested_bytes_total",
+			Help:      "Total number of bytes ingested per tenant within the active window. This is not a global total, as tenants can be sharded over multiple pods.",
+		}, []string{"tenant"}),
 	}
 }
 
@@ -191,7 +191,6 @@ func (s *IngestLimits) Describe(descs chan<- *prometheus.Desc) {
 	descs <- tenantPartitionDesc
 	descs <- tenantRecordedStreamsDesc
 	descs <- tenantActiveStreamsDesc
-	descs <- tenantIngestedBytesTotal
 }
 
 func (s *IngestLimits) Collect(m chan<- prometheus.Metric) {
@@ -202,9 +201,8 @@ func (s *IngestLimits) Collect(m chan<- prometheus.Metric) {
 
 	for tenant, partitions := range s.metadata {
 		var (
-			recorded   int
+			recorded int
-			active     int
+			active   int
-			totalBytes uint64
 		)
 
 		for partitionID, partition := range partitions {
@@ -217,7 +215,6 @@ func (s *IngestLimits) Collect(m chan<- prometheus.Metric) {
 			for _, stream := range partition {
 				if stream.lastSeenAt >= cutoff {
 					active++
-					totalBytes += stream.totalSize
 				}
 			}
 		}
@@ -225,7 +222,6 @@ func (s *IngestLimits) Collect(m chan<- prometheus.Metric) {
 		m <- prometheus.MustNewConstMetric(tenantPartitionDesc, prometheus.GaugeValue, float64(len(partitions)), tenant)
 		m <- prometheus.MustNewConstMetric(tenantRecordedStreamsDesc, prometheus.GaugeValue, float64(recorded), tenant)
 		m <- prometheus.MustNewConstMetric(tenantActiveStreamsDesc, prometheus.GaugeValue, float64(active), tenant)
-		m <- prometheus.MustNewConstMetric(tenantIngestedBytesTotal, prometheus.CounterValue, float64(totalBytes), tenant)
 	}
 }
 
@@ -439,6 +435,8 @@ func (s *IngestLimits) updateMetadata(rec *logproto.StreamMetadata, tenant strin
 	recordTime := lastSeenAt.UnixNano()
 	recTotalSize := rec.EntriesSize + rec.StructuredMetadataSize
 
+	s.metrics.tenantIngestedBytesTotal.WithLabelValues(tenant).Add(float64(recTotalSize))
+
 	// Get the bucket for this timestamp using the configured interval duration
 	bucketStart := lastSeenAt.Truncate(s.cfg.BucketDuration).UnixNano()