Update metrics.HintStats.TotalHintsInProgress to a Guage

Author: lyubent

jolokia/client.go

@@ -455,8 +455,7 @@ func (c *jolokiaClient) HintStats() (HintStats, error) {
 		attributes := extractAttributes(string(key))
 		switch attributes["name"] {
 		case "TotalHintsInProgress":
-			// PreparedStatementsEvicted
-			stats.TotalHintsInProgress = Counter(val.Get("Count").GetInt64())
+			stats.TotalHintsInProgress = Gauge(val.Get("Count").GetInt64())
 		case "TotalHints":
 			stats.TotalHints = Counter(val.Get("Count").GetInt64())
 		}

jolokia/jolokia.go

@@ -196,6 +196,6 @@ type StorageStats struct {
 // HintStats embeds information gathered from the Storage metric in
 // cassandra such as the number of total hints and hints being handed off
 type HintStats struct {
-	TotalHintsInProgress Counter
+	TotalHintsInProgress Gauge
 	TotalHints           Counter
 }

server/collector.go

@@ -410,7 +410,7 @@ func addHintStats(metrics ScrapedMetrics, ch chan<- prometheus.Metric) {
 	}
 
 	ch <- prometheus.MustNewConstMetric(PromTotalHintsInProgress,
-		prometheus.CounterValue, float64(metrics.HintStats.TotalHintsInProgress))
+		prometheus.GaugeValue, float64(metrics.HintStats.TotalHintsInProgress))
 	ch <- prometheus.MustNewConstMetric(PromTotalHints,
 		prometheus.CounterValue, float64(metrics.HintStats.TotalHints))
 }