diff --git a/weed/shell/command_volume_tier_download.go b/weed/shell/command_volume_tier_download.go
index 0dc34c071..e60a74735 100644
--- a/weed/shell/command_volume_tier_download.go
+++ b/weed/shell/command_volume_tier_download.go
@@ -4,9 +4,10 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"github.com/seaweedfs/seaweedfs/weed/pb"
 	"io"
 
+	"github.com/seaweedfs/seaweedfs/weed/pb"
+
 	"google.golang.org/grpc"
 
 	"github.com/seaweedfs/seaweedfs/weed/operation"
@@ -34,7 +35,6 @@ func (c *commandVolumeTierDownload) Help() string {
 
 	e.g.:
 	volume.tier.download -volumeId=7
-	volume.tier.download -volumeId=7
 
 	This command will download the dat file of a volume from a remote tier to a volume server in local cluster.
 
diff --git a/weed/stats/stats.go b/weed/stats/stats.go
index 09826152f..6d3d55cc6 100644
--- a/weed/stats/stats.go
+++ b/weed/stats/stats.go
@@ -100,8 +100,6 @@ func (ss *ServerStats) Start() {
 			ss.ReadRequests.Add(tv)
 		case tv := <-Chan.WriteRequests:
 			ss.WriteRequests.Add(tv)
-		case tv := <-Chan.ReadRequests:
-			ss.ReadRequests.Add(tv)
 		case tv := <-Chan.DeleteRequests:
 			ss.DeleteRequests.Add(tv)
 		case tv := <-Chan.BytesIn: