diff --git a/backend/src/services/document/ws_receiver.rs b/backend/src/services/document/ws_receiver.rs
index e152e71162..4faa7c85ee 100644
--- a/backend/src/services/document/ws_receiver.rs
+++ b/backend/src/services/document/ws_receiver.rs
@@ -68,11 +68,11 @@ impl WebSocketReceiver for DocumentWebSocketReceiver {
 
             match actor_msg_sender.send(msg).await {
                 Ok(_) => {}
-                Err(e) => log::error!("[DocumentWebSocketReceiver]: send message to actor failed: {}", e),
+                Err(e) => tracing::error!("[DocumentWebSocketReceiver]: send message to actor failed: {}", e),
             }
             match rx.await {
                 Ok(_) => {}
-                Err(e) => log::error!("[DocumentWebSocketReceiver]: message ret failed {:?}", e),
+                Err(e) => tracing::error!("[DocumentWebSocketReceiver]: message ret failed {:?}", e),
             };
         });
     }
diff --git a/backend/tests/api_test/workspace_test.rs b/backend/tests/api_test/workspace_test.rs
index 0602db4a1f..80cd50e1ad 100644
--- a/backend/tests/api_test/workspace_test.rs
+++ b/backend/tests/api_test/workspace_test.rs
@@ -242,7 +242,7 @@ async fn doc_create() {
     let user_id = "a".to_owned();
     let mut document = ClientDocument::new::<PlainDoc>();
     let mut offset = 0;
-    for i in 0..1000 {
+    for i in 0..5 {
         let content = i.to_string();
         let delta = document.insert(offset, content.clone()).unwrap();
         offset += content.len();