Changes in series names (and types) exposed (#376)

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

compact.go

@@ -97,7 +97,7 @@ func newCompactorMetrics(r prometheus.Registerer) *compactorMetrics {
 		Buckets: prometheus.ExponentialBuckets(1, 2, 10),
 	})
 	m.chunkSize = prometheus.NewHistogram(prometheus.HistogramOpts{
-		Name:    "prometheus_tsdb_compaction_chunk_size",
+		Name:    "prometheus_tsdb_compaction_chunk_size_bytes",
 		Help:    "Final size of chunks on their first compaction",
 		Buckets: prometheus.ExponentialBuckets(32, 1.5, 12),
 	})
@@ -107,7 +107,7 @@ func newCompactorMetrics(r prometheus.Registerer) *compactorMetrics {
 		Buckets: prometheus.ExponentialBuckets(4, 1.5, 12),
 	})
 	m.chunkRange = prometheus.NewHistogram(prometheus.HistogramOpts{
-		Name:    "prometheus_tsdb_compaction_chunk_range",
+		Name:    "prometheus_tsdb_compaction_chunk_range_seconds",
 		Help:    "Final time range of chunks on their first compaction",
 		Buckets: prometheus.ExponentialBuckets(100, 4, 10),
 	})

db.go

@@ -140,17 +140,17 @@ func newDBMetrics(db *DB, r prometheus.Registerer) *dbMetrics {
 		return float64(len(db.blocks))
 	})
 	m.symbolTableSize = prometheus.NewGaugeFunc(prometheus.GaugeOpts{
-		Name: "prometheus_tsdb_symbol_table_size",
+		Name: "prometheus_tsdb_symbol_table_size_bytes",
 		Help: "Size of symbol table on disk (in bytes)",
 	}, func() float64 {
 		db.mtx.RLock()
 		blocks := db.blocks[:]
 		db.mtx.RUnlock()
-		symTblSize := float64(0)
+		symTblSize := uint64(0)
 		for _, b := range blocks {
-			symTblSize += float64(b.GetSymbolTableSize())
+			symTblSize += b.GetSymbolTableSize()
 		}
-		return symTblSize
+		return float64(symTblSize)
 	})
 	m.reloads = prometheus.NewCounter(prometheus.CounterOpts{
 		Name: "prometheus_tsdb_reloads_total",

head.go

@@ -82,8 +82,8 @@ type headMetrics struct {
 	seriesRemoved       prometheus.Counter
 	seriesNotFound      prometheus.Counter
 	chunks              prometheus.Gauge
-	chunksCreated       prometheus.Gauge
-	chunksRemoved       prometheus.Gauge
+	chunksCreated       prometheus.Counter
+	chunksRemoved       prometheus.Counter
 	gcDuration          prometheus.Summary
 	minTime             prometheus.GaugeFunc
 	maxTime             prometheus.GaugeFunc
@@ -102,27 +102,27 @@ func newHeadMetrics(h *Head, r prometheus.Registerer) *headMetrics {
 		Name: "prometheus_tsdb_head_series",
 		Help: "Total number of series in the head block.",
 	})
-	m.seriesCreated = prometheus.NewGauge(prometheus.GaugeOpts{
+	m.seriesCreated = prometheus.NewCounter(prometheus.CounterOpts{
 		Name: "prometheus_tsdb_head_series_created_total",
 		Help: "Total number of series created in the head",
 	})
-	m.seriesRemoved = prometheus.NewGauge(prometheus.GaugeOpts{
+	m.seriesRemoved = prometheus.NewCounter(prometheus.CounterOpts{
 		Name: "prometheus_tsdb_head_series_removed_total",
 		Help: "Total number of series removed in the head",
 	})
 	m.seriesNotFound = prometheus.NewCounter(prometheus.CounterOpts{
-		Name: "prometheus_tsdb_head_series_not_found",
+		Name: "prometheus_tsdb_head_series_not_found_total",
 		Help: "Total number of requests for series that were not found.",
 	})
 	m.chunks = prometheus.NewGauge(prometheus.GaugeOpts{
 		Name: "prometheus_tsdb_head_chunks",
 		Help: "Total number of chunks in the head block.",
 	})
-	m.chunksCreated = prometheus.NewGauge(prometheus.GaugeOpts{
+	m.chunksCreated = prometheus.NewCounter(prometheus.CounterOpts{
 		Name: "prometheus_tsdb_head_chunks_created_total",
 		Help: "Total number of chunks created in the head",
 	})
-	m.chunksRemoved = prometheus.NewGauge(prometheus.GaugeOpts{
+	m.chunksRemoved = prometheus.NewCounter(prometheus.CounterOpts{
 		Name: "prometheus_tsdb_head_chunks_removed_total",
 		Help: "Total number of chunks removed in the head",
 	})