[GitHub] [dubbo-go-pixiu] AlexStocks commented on a change in pull request #204: add otel metric export to prometheus in pixiu

[GitBox <gi...@apache.org>]

AlexStocks commented on a change in pull request #204:
URL: https://github.com/apache/dubbo-go-pixiu/pull/204#discussion_r664658273



##########
File path: pkg/filter/metric/metric.go
##########
@@ -30,33 +32,60 @@ import (
 	"github.com/apache/dubbo-go-pixiu/pkg/common/constant"
 	"github.com/apache/dubbo-go-pixiu/pkg/common/extension"
 	"github.com/apache/dubbo-go-pixiu/pkg/logger"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/metric/global"
+)
+
+var (
+	totalElapsed int64 = 0

Review comment:
       在 go 里面，初始值为 0 时，不用赋值。因为其默认值就是 0




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