diff --git a/go.mod b/go.mod
index 33079cb112c20..f94077c5e28b2 100644
--- a/go.mod
+++ b/go.mod
@@ -274,3 +274,5 @@ replace (
 )
 
 exclude github.com/apache/pulsar-client-go/oauth2 v0.0.0-20211108044248-fe3b7c4e445b
+
+replace github.com/milvus-io/milvus-proto/go-api/v2 => /home/shaoting/workspace/milvus-proto/go-api
diff --git a/pkg/go.mod b/pkg/go.mod
index a485298e20bd0..b114adbe23437 100644
--- a/pkg/go.mod
+++ b/pkg/go.mod
@@ -194,3 +194,5 @@ replace (
 )
 
 exclude github.com/apache/pulsar-client-go/oauth2 v0.0.0-20211108044248-fe3b7c4e445b
+
+replace github.com/milvus-io/milvus-proto/go-api/v2 => /home/shaoting/workspace/milvus-proto/go-api
diff --git a/pkg/metrics/rootcoord_metrics.go b/pkg/metrics/rootcoord_metrics.go
index 86ad947aaf3f5..9ec5118da19b7 100644
--- a/pkg/metrics/rootcoord_metrics.go
+++ b/pkg/metrics/rootcoord_metrics.go
@@ -146,6 +146,15 @@ var (
 			Help:      "The number of roles",
 		})
 
+	// RootCoordNumOfPrivilegeGroups counts the number of credentials.
+	RootCoordNumOfPrivilegeGroups = prometheus.NewGauge(
+		prometheus.GaugeOpts{
+			Namespace: milvusNamespace,
+			Subsystem: typeutil.RootCoordRole,
+			Name:      "num_of_privilege_groups",
+			Help:      "The number of privilege groups",
+		})
+
 	// RootCoordTtDelay records the max time tick delay of flow graphs in DataNodes and QueryNodes.
 	RootCoordTtDelay = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
diff --git a/scripts/generate_proto.sh b/scripts/generate_proto.sh
index 1b087e8360a10..5eb6214c32e24 100755
--- a/scripts/generate_proto.sh
+++ b/scripts/generate_proto.sh
@@ -25,7 +25,7 @@ done
 ROOT_DIR="$( cd -P "$( dirname "$SOURCE" )/.." && pwd )"
 
 PROTO_DIR=$ROOT_DIR/internal/proto/
-API_PROTO_DIR=$ROOT_DIR/cmake_build/thirdparty/milvus-proto/proto
+API_PROTO_DIR=/home/shaoting/workspace/milvus-proto/proto
 CPP_SRC_DIR=$ROOT_DIR/internal/core
 PROTOC_BIN=$ROOT_DIR/cmake_build/bin/protoc