diff --git a/src/conetty/multiplex_client.rs b/src/conetty/multiplex_client.rs
index cecae3f..0b5886f 100644
--- a/src/conetty/multiplex_client.rs
+++ b/src/conetty/multiplex_client.rs
@@ -95,7 +95,7 @@ impl<S: StreamExt> Client for MultiplexClient<S> {
         let id: usize = id.into();
         let buf = req.finish(id as u64);
 
-        self.sock.write(buf);
+        self.sock.write(buf)?;
 
         // wait for the rsp
         Ok(waiter.wait_rsp(self.timeout)?)
diff --git a/src/conetty/queued_writer.rs b/src/conetty/queued_writer.rs
index 877c9d6..08a487a 100644
--- a/src/conetty/queued_writer.rs
+++ b/src/conetty/queued_writer.rs
@@ -49,7 +49,7 @@ impl<W: Write> QueuedWriter<W> {
     }
 
     /// it's safe and efficient to call this API concurrently
-    pub fn write(&self, data: Vec<u8>) {
+    pub fn write(&self, data: Vec<u8>) -> std::io::Result<()> {
         self.data_queue.push(data);
         // only allow the first writer perform the write operation
         // other concurrent writers would just push the data
@@ -70,10 +70,8 @@ impl<W: Write> QueuedWriter<W> {
                 }
             }
 
-            if let Err(e) = writer.write_all() {
-                // FIXME: handle the error
-                error!("QueuedWriter failed, err={}", e);
-            }
+            writer.write_all()?;
         }
+        Ok(())
     }
 }
diff --git a/src/conetty/server.rs b/src/conetty/server.rs
index 559754d..e0a4cb1 100644
--- a/src/conetty/server.rs
+++ b/src/conetty/server.rs
@@ -141,7 +141,7 @@ pub trait TcpServer: Server {
 
                                 info!("send rsp: id={}", req.id);
                                 // send the result back to client
-                                w_stream.write(data);
+                                w_stream.write(data).expect("tcp write to client failed");
                             });
                         }
                     });
@@ -206,7 +206,7 @@ pub trait UdsServer: Server {
 
                                 info!("send rsp: id={}", req.id);
                                 // send the result back to client
-                                w_stream.write(data);
+                                w_stream.write(data).expect("uds write to client failed");
                             });
                         }
                     });