diff --git a/src/common/meta/src/region_keeper.rs b/src/common/meta/src/region_keeper.rs
index 7e8a1ac614..6e14c61aae 100644
--- a/src/common/meta/src/region_keeper.rs
+++ b/src/common/meta/src/region_keeper.rs
@@ -59,15 +59,6 @@ impl MemoryRegionKeeper {
         Default::default()
     }
 
-    /// Returns [OperatingRegionGuard] if Region(`region_id`) on Peer(`datanode_id`) does not exist.
-    pub fn register(
-        &self,
-        datanode_id: DatanodeId,
-        region_id: RegionId,
-    ) -> Option<OperatingRegionGuard> {
-        self.register_with_role(datanode_id, region_id, RegionRole::Leader)
-    }
-
     /// Returns [OperatingRegionGuard] if Region(`region_id`) on Peer(`datanode_id`) does not exist.
     pub fn register_with_role(
         &self,
@@ -159,8 +150,14 @@ mod tests {
     fn test_opening_region_keeper() {
         let keeper = MemoryRegionKeeper::new();
 
-        let guard = keeper.register(1, RegionId::from_u64(1)).unwrap();
-        assert!(keeper.register(1, RegionId::from_u64(1)).is_none());
+        let guard = keeper
+            .register_with_role(1, RegionId::from_u64(1), RegionRole::Leader)
+            .unwrap();
+        assert!(
+            keeper
+                .register_with_role(1, RegionId::from_u64(1), RegionRole::Leader)
+                .is_none()
+        );
         let guard2 = keeper
             .register_with_role(1, RegionId::from_u64(2), RegionRole::Follower)
             .unwrap();
diff --git a/src/meta-srv/src/handler/region_lease_handler.rs b/src/meta-srv/src/handler/region_lease_handler.rs
index c6c1d44521..aa26a037e3 100644
--- a/src/meta-srv/src/handler/region_lease_handler.rs
+++ b/src/meta-srv/src/handler/region_lease_handler.rs
@@ -281,7 +281,7 @@ mod test {
 
         let opening_region_id = RegionId::new(table_id, region_number + 2);
         let _guard = opening_region_keeper
-            .register(follower_peer.id, opening_region_id)
+            .register_with_role(follower_peer.id, opening_region_id, RegionRole::Follower)
             .unwrap();
 
         let acc = &mut HeartbeatAccumulator::default();
diff --git a/src/meta-srv/src/procedure/region_migration/open_candidate_region.rs b/src/meta-srv/src/procedure/region_migration/open_candidate_region.rs
index 1d02986b23..0c0e5de5d7 100644
--- a/src/meta-srv/src/procedure/region_migration/open_candidate_region.rs
+++ b/src/meta-srv/src/procedure/region_migration/open_candidate_region.rs
@@ -297,7 +297,7 @@ mod tests {
         let mut ctx = env.context_factory().new_context(persistent_context);
         let opening_region_keeper = env.opening_region_keeper();
         let _guard = opening_region_keeper
-            .register(to_peer_id, region_id)
+            .register_with_role(to_peer_id, region_id, RegionRole::Follower)
             .unwrap();
 
         let open_instruction = new_mock_open_instruction(to_peer_id, region_id);
diff --git a/src/meta-srv/src/procedure/region_migration/update_metadata/upgrade_candidate_region.rs b/src/meta-srv/src/procedure/region_migration/update_metadata/upgrade_candidate_region.rs
index d5aa8699ec..93df5e6e2e 100644
--- a/src/meta-srv/src/procedure/region_migration/update_metadata/upgrade_candidate_region.rs
+++ b/src/meta-srv/src/procedure/region_migration/update_metadata/upgrade_candidate_region.rs
@@ -231,6 +231,7 @@ mod tests {
     use common_meta::region_keeper::MemoryRegionKeeper;
     use common_meta::rpc::router::{LeaderState, Region, RegionRoute};
     use common_time::util::current_time_millis;
+    use store_api::region_engine::RegionRole;
     use store_api::storage::RegionId;
 
     use crate::error::Error;
@@ -467,7 +468,7 @@ mod tests {
         }];
 
         let guard = opening_keeper
-            .register(2, RegionId::new(table_id, 1))
+            .register_with_role(2, RegionId::new(table_id, 1), RegionRole::Follower)
             .unwrap();
         ctx.volatile_ctx.opening_region_guards.push(guard);
 
diff --git a/src/meta-srv/src/region/lease_keeper.rs b/src/meta-srv/src/region/lease_keeper.rs
index ac9f7d71b9..a660019ef9 100644
--- a/src/meta-srv/src/region/lease_keeper.rs
+++ b/src/meta-srv/src/region/lease_keeper.rs
@@ -376,12 +376,16 @@ mod tests {
         let opening_region_id = RegionId::new(1025, 1);
         let _guard = keeper
             .memory_region_keeper
-            .register(leader_peer_id, opening_region_id)
+            .register_with_role(leader_peer_id, opening_region_id, RegionRole::Leader)
             .unwrap();
         let another_opening_region_id = RegionId::new(1025, 2);
         let _guard2 = keeper
             .memory_region_keeper
-            .register(follower_peer_id, another_opening_region_id)
+            .register_with_role(
+                follower_peer_id,
+                another_opening_region_id,
+                RegionRole::Follower,
+            )
             .unwrap();
 
         let (metadata, regions) = keeper
@@ -481,7 +485,7 @@ mod tests {
         let opening_region_id = RegionId::new(2048, 1);
         let _guard = keeper
             .memory_region_keeper
-            .register(leader_peer_id, opening_region_id)
+            .register_with_role(leader_peer_id, opening_region_id, RegionRole::Leader)
             .unwrap();
 
         // The opening region on the datanode.
@@ -683,7 +687,7 @@ mod tests {
 
         let _guard = keeper
             .memory_region_keeper
-            .register(datanode_id, region_id)
+            .register_with_role(datanode_id, region_id, RegionRole::Leader)
             .unwrap();
 
         let RenewRegionLeasesResponse {