add ingest total metrics

Signed-off-by: zengxilong <zengxilonglh@gmail.com>

.gitignore

@@ -4,3 +4,4 @@ elasticsearch_exporter
 *-stamp
 .tarballs
 /vendor
+.idea

collector/nodes.go

@@ -1510,6 +1510,54 @@ func NewNodes(logger log.Logger, client *http.Client, url *url.URL, all bool, no
 				},
 				Labels: defaultNodeLabelValues,
 			},
+			{
+				Type: prometheus.CounterValue,
+				Desc: prometheus.NewDesc(
+					prometheus.BuildFQName(namespace, "ingest", "total_count"),
+					"Total number of ingest count",
+					defaultNodeLabels, nil,
+				),
+				Value: func(node NodeStatsNodeResponse) float64 {
+					return float64(node.Ingest.Total.Count)
+				},
+				Labels: defaultNodeLabelValues,
+			},
+			{
+				Type: prometheus.CounterValue,
+				Desc: prometheus.NewDesc(
+					prometheus.BuildFQName(namespace, "ingest", "total_time_in_millis"),
+					"Total number of ingest time in millis",
+					defaultNodeLabels, nil,
+				),
+				Value: func(node NodeStatsNodeResponse) float64 {
+					return float64(node.Ingest.Total.TimeInMillis)
+				},
+				Labels: defaultNodeLabelValues,
+			},
+			{
+				Type: prometheus.CounterValue,
+				Desc: prometheus.NewDesc(
+					prometheus.BuildFQName(namespace, "ingest", "total_current"),
+					"Total number of current ingest docs",
+					defaultNodeLabels, nil,
+				),
+				Value: func(node NodeStatsNodeResponse) float64 {
+					return float64(node.Ingest.Total.Current)
+				},
+				Labels: defaultNodeLabelValues,
+			},
+			{
+				Type: prometheus.CounterValue,
+				Desc: prometheus.NewDesc(
+					prometheus.BuildFQName(namespace, "ingest", "total_failed"),
+					"Total number of ingest failed docs",
+					defaultNodeLabels, nil,
+				),
+				Value: func(node NodeStatsNodeResponse) float64 {
+					return float64(node.Ingest.Total.Failed)
+				},
+				Labels: defaultNodeLabelValues,
+			},
 		},
 		gcCollectionMetrics: []*gcCollectionMetric{
 			{

collector/nodes_response.go

@@ -40,6 +40,7 @@ type NodeStatsNodeResponse struct {
 	HTTP             map[string]interface{}                     `json:"http"`
 	Transport        NodeStatsTransportResponse                 `json:"transport"`
 	Process          NodeStatsProcessResponse                   `json:"process"`
+	Ingest           NodeIngestResponse                         `json:"ingest"`
 }
 
 // NodeStatsBreakersResponse is a representation of a statistics about the field data circuit breaker
@@ -384,3 +385,16 @@ type ClusterHealthResponse struct {
 	TimedOut                bool   `json:"timed_out"`
 	UnassignedShards        int64  `json:"unassigned_shards"`
 }
+
+// NodeIngestResponse is a representation of a node ingest stats
+type NodeIngestResponse struct {
+	Total NodeIngestStatsResponse `json:"total"`
+}
+
+// NodeIngestStatsResponse is a representation of a node ingest stats
+type NodeIngestStatsResponse struct {
+	Count        int64 `json:"count"`
+	TimeInMillis int64 `json:"time_in_millis"`
+	Current      int64 `json:"current"`
+	Failed       int64 `json:"failed"`
+}