diff --git a/Cargo.lock b/Cargo.lock
index 9d8a9643..5b1f4da8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -762,6 +762,7 @@ version = "0.0.1"
 dependencies = [
  "ecstore",
  "flatbuffers",
+ "futures",
  "lazy_static",
  "lock",
  "madmin",
diff --git a/e2e_test/Cargo.toml b/e2e_test/Cargo.toml
index 58974bad..0a8d98d5 100644
--- a/e2e_test/Cargo.toml
+++ b/e2e_test/Cargo.toml
@@ -14,6 +14,7 @@ workspace = true
 [dependencies]
 ecstore.workspace = true
 flatbuffers.workspace = true
+futures.workspace = true
 lazy_static.workspace = true
 lock.workspace = true
 protos.workspace = true
diff --git a/e2e_test/src/reliant/node_interact_test.rs b/e2e_test/src/reliant/node_interact_test.rs
index 7f912870..cc81204d 100644
--- a/e2e_test/src/reliant/node_interact_test.rs
+++ b/e2e_test/src/reliant/node_interact_test.rs
@@ -1,7 +1,8 @@
 #![cfg(test)]
 
 use ecstore::disk::{MetaCacheEntry, VolumeInfo, WalkDirOptions};
-use ecstore::metacache::writer::MetacacheWriter;
+use ecstore::metacache::writer::{MetacacheReader, MetacacheWriter};
+use futures::future::join_all;
 use protos::proto_gen::node_service::WalkDirRequest;
 use protos::{
     models::{PingBody, PingBodyBuilder},
@@ -14,6 +15,7 @@ use rmp_serde::Deserializer;
 use serde::Deserialize;
 use std::{error::Error, io::Cursor};
 use tokio::io::AsyncWrite;
+use tokio::spawn;
 use tokio::sync::mpsc;
 use tonic::codegen::tokio_stream::wrappers::ReceiverStream;
 use tonic::codegen::tokio_stream::StreamExt;
@@ -95,7 +97,7 @@ async fn list_volumes() -> Result<(), Box<dyn Error>> {
 }
 
 #[tokio::test]
-async fn walk_dir<W: AsyncWrite + Unpin + Send>() -> Result<(), Box<dyn Error>> {
+async fn walk_dir() -> Result<(), Box<dyn Error>> {
     println!("walk_dir");
     // TODO: use writer
     let opts = WalkDirOptions {
@@ -105,30 +107,47 @@ async fn walk_dir<W: AsyncWrite + Unpin + Send>() -> Result<(), Box<dyn Error>>
         ..Default::default()
     };
     let (rd, mut wr) = tokio::io::duplex(1024);
-    let mut out = MetacacheWriter::new(&mut wr);
     let walk_dir_options = serde_json::to_string(&opts)?;
     let mut client = node_service_time_out_client(&CLUSTER_ADDR.to_string()).await?;
     let request = Request::new(WalkDirRequest {
-        disk: "data".to_string(),
+        disk: "/home/dandan/code/rust/s3-rustfs/target/debug/data".to_string(),
         walk_dir_options,
     });
     let mut response = client.walk_dir(request).await?.into_inner();
 
-    loop {
-        match response.next().await {
-            Some(Ok(resp)) => {
-                if !resp.success {
-                    println!("{}", resp.error_info.unwrap_or("".to_string()));
+    let job1 = spawn(async move {
+        let mut out = MetacacheWriter::new(&mut wr);
+        loop {
+            match response.next().await {
+                Some(Ok(resp)) => {
+                    if !resp.success {
+                        println!("{}", resp.error_info.unwrap_or("".to_string()));
+                    }
+                    let entry = serde_json::from_str::<MetaCacheEntry>(&resp.meta_cache_entry)
+                        .map_err(|e| ecstore::error::Error::from_string(format!("Unexpected response: {:?}", response)))
+                        .unwrap();
+                    out.write_obj(&entry).await.unwrap();
+                }
+                None => {
+                    let _ = out.close().await;
+                    break;
+                }
+                _ => {
+                    println!("Unexpected response: {:?}", response);
+                    let _ = out.close().await;
+                    break;
                 }
-                let entry = serde_json::from_str::<MetaCacheEntry>(&resp.meta_cache_entry)
-                    .map_err(|e| Err(ecstore::error::Error::from_string(format!("Unexpected response: {:?}", response))))?;
-                out.write_obj(&entry)?;
             }
-            None => break,
-            _ => println!("Unexpected response: {:?}", response),
         }
-    }
+    });
+    let job2 = spawn(async move {
+        let mut reader = MetacacheReader::new(rd);
+        while let Ok(Some(entry)) = reader.peek().await {
+            println!("{:?}", entry);
+        }
+    });
 
+    join_all(vec![job1, job2]).await;
     Ok(())
 }
 
diff --git a/ecstore/src/disk/remote.rs b/ecstore/src/disk/remote.rs
index 67caf5a1..1d3693e9 100644
--- a/ecstore/src/disk/remote.rs
+++ b/ecstore/src/disk/remote.rs
@@ -373,7 +373,7 @@ impl DiskAPI for RemoteDisk {
                         return Err(Error::from_string(resp.error_info.unwrap_or("".to_string())));
                     }
                     let entry = serde_json::from_str::<MetaCacheEntry>(&resp.meta_cache_entry)
-                        .map_err(|e| Error::from_string(format!("Unexpected response: {:?}", response)))?;
+                        .map_err(|_| Error::from_string(format!("Unexpected response: {:?}", response)))?;
                     out.write_obj(&entry).await?;
                 }
                 None => break,
diff --git a/rustfs/src/grpc.rs b/rustfs/src/grpc.rs
index 63ae2489..bae37e14 100644
--- a/rustfs/src/grpc.rs
+++ b/rustfs/src/grpc.rs
@@ -796,7 +796,7 @@ impl Node for NodeService {
                 join_all(vec![job1, job2]).await;
             });
         } else {
-            return Err(Status::invalid_argument("invalid disk"));
+            return Err(Status::invalid_argument(format!("invalid disk, all disk: {:?}", self.all_disk().await)));
         }
 
         let out_stream = ReceiverStream::new(rx);