Add pool_size and max_connections (#27)

Signed-off-by: Nikita <errowsf@gmail.com>
jbub · Mar 25, 2024 · a5497c0 · a5497c0
1 parent fa4ec82
commit a5497c0
Showing 1 changed file with 32 additions and 0 deletions.
diff --git a/internal/collector/metrics.go b/internal/collector/metrics.go
@@ -232,6 +232,22 @@ func buildMetrics(cfg config.Config) []metric {
 				return results
 			},
 		},
+		{
+			enabled: cfg.ExportDatabases,
+			name:    fqName(SubsystemDatabases, "pool_size"),
+			help:    "Maximum number of server connections.",
+			labels:  []string{"name", "pool_mode"},
+			valType: prometheus.GaugeValue,
+			eval: func(res *storeResult) (results []metricResult) {
+				for _, database := range res.databases {
+					results = append(results, metricResult{
+						labels: []string{database.Name, database.PoolMode},
+						value:  float64(database.PoolSize),
+					})
+				}
+				return results
+			},
+		},
 		{
 			enabled: cfg.ExportDatabases,
 			name:    fqName(SubsystemDatabases, "current_connections"),
@@ -248,6 +264,22 @@ func buildMetrics(cfg config.Config) []metric {
 				return results
 			},
 		},
+		{
+			enabled: cfg.ExportDatabases,
+			name:    fqName(SubsystemDatabases, "max_connections"),
+			help:    "Maximum number of allowed connections for this database.",
+			labels:  []string{"name", "pool_mode"},
+			valType: prometheus.GaugeValue,
+			eval: func(res *storeResult) (results []metricResult) {
+				for _, database := range res.databases {
+					results = append(results, metricResult{
+						labels: []string{database.Name, database.PoolMode},
+						value:  float64(database.MaxConnections),
+					})
+				}
+				return results
+			},
+		},
 		{
 			enabled: cfg.ExportLists,
 			name:    fqName(SubsystemLists, "items"),