diff --git a/weed/filer/filerstore_wrapper.go b/weed/filer/filerstore_wrapper.go
index 705f6635b..47b5036f7 100644
--- a/weed/filer/filerstore_wrapper.go
+++ b/weed/filer/filerstore_wrapper.go
@@ -296,7 +296,7 @@ func (fsw *FilerStoreWrapper) prefixFilterEntries(ctx context.Context, dirPath u
 		}
 		if count < limit {
 			notPrefixed = notPrefixed[:0]
-			_, err = actualStore.ListDirectoryEntries(ctx, dirPath, lastFileName, false, limit, func(entry *Entry) bool {
+			lastFileName, err = actualStore.ListDirectoryEntries(ctx, dirPath, lastFileName, false, limit, func(entry *Entry) bool {
 				notPrefixed = append(notPrefixed, entry)
 				return true
 			})
diff --git a/weed/filer/redis2/universal_redis_store.go b/weed/filer/redis2/universal_redis_store.go
index ecf68a9ee..f9798cf2f 100644
--- a/weed/filer/redis2/universal_redis_store.go
+++ b/weed/filer/redis2/universal_redis_store.go
@@ -133,7 +133,10 @@ func (store *UniversalRedis2Store) DeleteFolderChildren(ctx context.Context, ful
 		return nil
 	}
 
-	members, err := store.Client.ZRange(ctx, genDirectoryListKey(string(fullpath)), 0, -1).Result()
+	members, err := store.Client.ZRangeByLex(ctx, genDirectoryListKey(string(fullpath)), &redis.ZRangeBy{
+		Min:    "-",
+		Max:    "+",
+	}).Result()
 	if err != nil {
 		return fmt.Errorf("DeleteFolderChildren %s : %v", fullpath, err)
 	}
@@ -158,14 +161,22 @@ func (store *UniversalRedis2Store) ListDirectoryPrefixedEntries(ctx context.Cont
 func (store *UniversalRedis2Store) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc filer.ListEachEntryFunc) (lastFileName string, err error) {
 
 	dirListKey := genDirectoryListKey(string(dirPath))
-	start := int64(0)
+
+	min := "-"
 	if startFileName != "" {
-		start, _ = store.Client.ZRank(ctx, dirListKey, startFileName).Result()
-		if !includeStartFile {
-			start++
+		if includeStartFile {
+			min = "[" + startFileName
+		} else {
+			min = "(" + startFileName
 		}
 	}
-	members, err := store.Client.ZRange(ctx, dirListKey, start, start+int64(limit)-1).Result()
+
+	members, err := store.Client.ZRangeByLex(ctx, dirListKey, &redis.ZRangeBy{
+		Min:    min,
+		Max:    "+",
+		Offset: 0,
+		Count:  limit,
+	}).Result()
 	if err != nil {
 		return lastFileName, fmt.Errorf("list %s : %v", dirPath, err)
 	}
diff --git a/weed/s3api/s3api_object_multipart_handlers.go b/weed/s3api/s3api_object_multipart_handlers.go
index 486161dfb..ea3aba64d 100644
--- a/weed/s3api/s3api_object_multipart_handlers.go
+++ b/weed/s3api/s3api_object_multipart_handlers.go
@@ -128,7 +128,7 @@ func (s3a *S3ApiServer) ListMultipartUploadsHandler(w http.ResponseWriter, r *ht
 		UploadIdMarker: aws.String(uploadIDMarker),
 	})
 
-	glog.V(2).Info("ListMultipartUploadsHandler", string(s3err.EncodeXMLResponse(response)), errCode)
+	glog.V(2).Infof("ListMultipartUploadsHandler %s errCode=%d", string(s3err.EncodeXMLResponse(response)), errCode)
 
 	if errCode != s3err.ErrNone {
 		s3err.WriteErrorResponse(w, errCode, r)
@@ -162,7 +162,7 @@ func (s3a *S3ApiServer) ListObjectPartsHandler(w http.ResponseWriter, r *http.Re
 		UploadId:         aws.String(uploadID),
 	})
 
-	glog.V(2).Info("ListObjectPartsHandler", string(s3err.EncodeXMLResponse(response)), errCode)
+	glog.V(2).Infof("ListObjectPartsHandler %s count=%d", string(s3err.EncodeXMLResponse(response)), len(response.Part))
 
 	if errCode != s3err.ErrNone {
 		s3err.WriteErrorResponse(w, errCode, r)
@@ -214,6 +214,8 @@ func (s3a *S3ApiServer) PutObjectPartHandler(w http.ResponseWriter, r *http.Requ
 	}
 	defer dataReader.Close()
 
+	glog.V(2).Infof("PutObjectPartHandler %s %s %04d", bucket, uploadID, partID)
+
 	uploadUrl := fmt.Sprintf("http://%s%s/%s/%04d.part?collection=%s",
 		s3a.option.Filer.ToHttpAddress(), s3a.genUploadsFolder(bucket), uploadID, partID, bucket)