diff --git a/src/datanode/src/datanode.rs b/src/datanode/src/datanode.rs
index c19fb30a54b2..2a5d20194d95 100644
--- a/src/datanode/src/datanode.rs
+++ b/src/datanode/src/datanode.rs
@@ -67,7 +67,7 @@ pub struct Datanode {
     opts: DatanodeOptions,
     services: Option<Services>,
     heartbeat_task: Option<HeartbeatTask>,
-    event_receiver: Option<RegionServerEventReceiver>,
+    region_event_receiver: Option<RegionServerEventReceiver>,
     region_server: RegionServer,
     greptimedb_telemetry_task: Arc<GreptimeDBTelemetryTask>,
 }
diff --git a/src/datanode/src/event_listener.rs b/src/datanode/src/event_listener.rs
index 78bc9b41bea4..c21e28d1c6e9 100644
--- a/src/datanode/src/event_listener.rs
+++ b/src/datanode/src/event_listener.rs
@@ -23,10 +23,10 @@ pub enum RegionServerEvent {
 
 pub trait RegionServerEventListener: Sync + Send {
     /// Called *after* a new region was created/opened.
-    fn register_region(&self, _region_id: RegionId) {}
+    fn on_register_region(&self, _region_id: RegionId) {}
 
     /// Called *after* a region was closed.
-    fn deregister_region(&self, _region_id: RegionId) {}
+    fn on_deregister_region(&self, _region_id: RegionId) {}
 }
 
 pub type RegionServerEventListenerRef = Box<dyn RegionServerEventListener>;