diff --git a/core/stores/redis/metrics.go b/core/stores/redis/metrics.go
index 955091e2..fe3ce9cc 100644
--- a/core/stores/redis/metrics.go
+++ b/core/stores/redis/metrics.go
@@ -34,11 +34,9 @@ var (
 		Labels:    []string{"command"},
 	})
 
-	connLabels = []string{"key", "client_type"}
-
-	connCollector = newCollector()
-
-	_ prometheus.Collector = (*collector)(nil)
+	connLabels                         = []string{"key", "client_type"}
+	connCollector                      = newCollector()
+	_             prometheus.Collector = (*collector)(nil)
 )
 
 type (
diff --git a/core/stores/sqlx/metrics.go b/core/stores/sqlx/metrics.go
index 842439fe..1092c9a2 100644
--- a/core/stores/sqlx/metrics.go
+++ b/core/stores/sqlx/metrics.go
@@ -34,11 +34,9 @@ var (
 		Labels:    []string{"command"},
 	})
 
-	connLabels = []string{"db_name", "hash"}
-
-	connCollector = newCollector()
-
-	_ prometheus.Collector = (*collector)(nil)
+	connLabels                         = []string{"db_name", "hash"}
+	connCollector                      = newCollector()
+	_             prometheus.Collector = (*collector)(nil)
 )
 
 type (
@@ -143,15 +141,24 @@ func (c *collector) Collect(ch chan<- prometheus.Metric) {
 	for _, client := range c.clients {
 		dbName, hash := client.dbName, client.hash
 		stats := client.poolStats()
-		ch <- prometheus.MustNewConstMetric(c.maxOpenConnections, prometheus.GaugeValue, float64(stats.MaxOpenConnections), dbName, hash)
-		ch <- prometheus.MustNewConstMetric(c.openConnections, prometheus.GaugeValue, float64(stats.OpenConnections), dbName, hash)
-		ch <- prometheus.MustNewConstMetric(c.inUseConnections, prometheus.GaugeValue, float64(stats.InUse), dbName, hash)
-		ch <- prometheus.MustNewConstMetric(c.idleConnections, prometheus.GaugeValue, float64(stats.Idle), dbName, hash)
-		ch <- prometheus.MustNewConstMetric(c.waitCount, prometheus.CounterValue, float64(stats.WaitCount), dbName, hash)
-		ch <- prometheus.MustNewConstMetric(c.waitDuration, prometheus.CounterValue, stats.WaitDuration.Seconds(), dbName, hash)
-		ch <- prometheus.MustNewConstMetric(c.maxIdleClosed, prometheus.CounterValue, float64(stats.MaxIdleClosed), dbName, hash)
-		ch <- prometheus.MustNewConstMetric(c.maxLifetimeClosed, prometheus.CounterValue, float64(stats.MaxLifetimeClosed), dbName, hash)
-		ch <- prometheus.MustNewConstMetric(c.maxIdleTimeClosed, prometheus.CounterValue, float64(stats.MaxIdleTimeClosed), dbName, hash)
+		ch <- prometheus.MustNewConstMetric(c.maxOpenConnections, prometheus.GaugeValue,
+			float64(stats.MaxOpenConnections), dbName, hash)
+		ch <- prometheus.MustNewConstMetric(c.openConnections, prometheus.GaugeValue,
+			float64(stats.OpenConnections), dbName, hash)
+		ch <- prometheus.MustNewConstMetric(c.inUseConnections, prometheus.GaugeValue,
+			float64(stats.InUse), dbName, hash)
+		ch <- prometheus.MustNewConstMetric(c.idleConnections, prometheus.GaugeValue,
+			float64(stats.Idle), dbName, hash)
+		ch <- prometheus.MustNewConstMetric(c.waitCount, prometheus.CounterValue,
+			float64(stats.WaitCount), dbName, hash)
+		ch <- prometheus.MustNewConstMetric(c.waitDuration, prometheus.CounterValue,
+			stats.WaitDuration.Seconds(), dbName, hash)
+		ch <- prometheus.MustNewConstMetric(c.maxIdleClosed, prometheus.CounterValue,
+			float64(stats.MaxIdleClosed), dbName, hash)
+		ch <- prometheus.MustNewConstMetric(c.maxLifetimeClosed, prometheus.CounterValue,
+			float64(stats.MaxLifetimeClosed), dbName, hash)
+		ch <- prometheus.MustNewConstMetric(c.maxIdleTimeClosed, prometheus.CounterValue,
+			float64(stats.MaxIdleTimeClosed), dbName, hash)
 	}
 }
 
diff --git a/rest/httpc/internal/metricsinterceptor.go b/rest/httpc/internal/metricsinterceptor.go
index 38cbb84c..99835f92 100644
--- a/rest/httpc/internal/metricsinterceptor.go
+++ b/rest/httpc/internal/metricsinterceptor.go
@@ -31,26 +31,24 @@ var (
 	})
 )
 
-type (
-	MetricsURLRewriter func(u url.URL) string
-)
+type MetricsURLRewriter func(u url.URL) string
 
 func MetricsInterceptor(name string, pr MetricsURLRewriter) Interceptor {
 	return func(r *http.Request) (*http.Request, ResponseHandler) {
 		startTime := timex.Now()
 		return r, func(resp *http.Response, err error) {
-			u := cleanURL(*r.URL)
-			method := r.Method
-			var (
-				code int
-				path string
-			)
+			var code int
+			var path string
+
 			// error or resp is nil, set code=500
 			if err != nil || resp == nil {
 				code = http.StatusInternalServerError
 			} else {
 				code = resp.StatusCode
 			}
+
+			u := cleanURL(*r.URL)
+			method := r.Method
 			if pr != nil {
 				path = pr(u)
 			} else {
diff --git a/tools/goctl/internal/version/version.go b/tools/goctl/internal/version/version.go
index 89b15b2e..c1f3947c 100644
--- a/tools/goctl/internal/version/version.go
+++ b/tools/goctl/internal/version/version.go
@@ -6,7 +6,7 @@ import (
 )
 
 // BuildVersion is the version of goctl.
-const BuildVersion = "1.5.6"
+const BuildVersion = "1.6.0"
 
 var tag = map[string]int{"pre-alpha": 0, "alpha": 1, "pre-bata": 2, "beta": 3, "released": 4, "": 5}