fix

Author: carldai

pkg/metric/repository.go

@@ -3,7 +3,6 @@ package metric
 import (
 	"context"
 	"fmt"
-	"strings"
 	"time"
 
 	"github.com/tencentyun/tencentcloud-exporter/pkg/util"
@@ -167,7 +166,7 @@ func (repo *TcmMetricRepositoryImpl) getMonitorDataWithRetry(
 	for i := 0; i < 3; i++ {
 		resp, err := monitorClient.GetMonitorData(request)
 		if err != nil {
-			if strings.Contains(err.Error(), "context deadline") {
+			if err.Error() == context.DeadlineExceeded.Error() {
 				lastErr = err
 				continue
 			}