diff --git a/weed/operation/upload_content.go b/weed/operation/upload_content.go
index 3e96b5909..c0d82f972 100644
--- a/weed/operation/upload_content.go
+++ b/weed/operation/upload_content.go
@@ -19,7 +19,6 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"github.com/chrislusf/seaweedfs/weed/security"
 	"github.com/chrislusf/seaweedfs/weed/util"
-	"github.com/valyala/bytebufferpool"
 )
 
 type UploadResult struct {
@@ -81,14 +80,11 @@ func doUpload(uploadUrl string, filename string, cipher bool, reader io.Reader,
 	if ok {
 		data = bytesReader.Bytes
 	} else {
-		buf := bytebufferpool.Get()
-		_, err = buf.ReadFrom(reader)
-		defer bytebufferpool.Put(buf)
+		data, err = ioutil.ReadAll(reader)
 		if err != nil {
 			err = fmt.Errorf("read input: %v", err)
 			return
 		}
-		data = buf.Bytes()
 	}
 	uploadResult, uploadErr := retriedUploadData(uploadUrl, filename, cipher, data, isInputCompressed, mtype, pairMap, jwt)
 	return uploadResult, uploadErr, data
@@ -188,9 +184,8 @@ func doUploadData(uploadUrl string, filename string, cipher bool, data []byte, i
 }
 
 func upload_content(uploadUrl string, fillBufferFunction func(w io.Writer) error, filename string, isGzipped bool, originalDataSize int, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (*UploadResult, error) {
-	buf := bytebufferpool.Get()
-	defer bytebufferpool.Put(buf)
-	body_writer := multipart.NewWriter(buf)
+	body_buf := bytes.NewBufferString("")
+	body_writer := multipart.NewWriter(body_buf)
 	h := make(textproto.MIMEHeader)
 	h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, fileNameEscaper.Replace(filename)))
 	if mtype == "" {
@@ -218,7 +213,7 @@ func upload_content(uploadUrl string, fillBufferFunction func(w io.Writer) error
 		return nil, err
 	}
 
-	req, postErr := http.NewRequest("POST", uploadUrl, bytes.NewReader(buf.Bytes()))
+	req, postErr := http.NewRequest("POST", uploadUrl, body_buf)
 	if postErr != nil {
 		glog.V(1).Infof("create upload request %s: %v", uploadUrl, postErr)
 		return nil, fmt.Errorf("create upload request %s: %v", uploadUrl, postErr)