diff --git a/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/dataproxy/discoverer.go b/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/dataproxy/discoverer.go
index d7bfebb9002..5356777ee82 100755
--- a/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/dataproxy/discoverer.go
+++ b/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/dataproxy/discoverer.go
@@ -180,8 +180,6 @@ func (d *dataProxyDiscoverer) update() {
 				d.lookup()
 			case <-stopCh:
 				return
-			default:
-				time.Sleep(500 * time.Millisecond)
 			}
 		}
 	}()
diff --git a/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/discoverer/dns.go b/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/discoverer/dns.go
index 1e8d321aa70..7abaf973936 100755
--- a/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/discoverer/dns.go
+++ b/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/discoverer/dns.go
@@ -209,8 +209,6 @@ func (d *dnsDiscoverer) update() {
 				d.lookup()
 			case <-stopCh:
 				return
-			default:
-				time.Sleep(500 * time.Millisecond)
 			}
 		}
 	}()