diff --git a/pyengine/engine/controller/scheduler.py b/pyengine/engine/controller/scheduler.py
index c88f7348405ce5ad9caaf31e7113a96d40882b13..3eab1b49b38c69a94436f955a3c72bc0c9b8dde8 100644
--- a/pyengine/engine/controller/scheduler.py
+++ b/pyengine/engine/controller/scheduler.py
@@ -1,7 +1,7 @@
 from engine.retrieval import search_index
 from engine.ingestion import build_index
 from engine.ingestion import serialize
-import numpy as np
+
 
 class Singleton(type):
     _instances = {}
@@ -15,36 +15,29 @@ class Scheduler(metaclass=Singleton):
     def Search(self, index_file_key, vectors, k):
         # assert index_file_key
         # assert vectors
-        # assert k
+        assert k != 0
+
+        query_vectors = serialize.to_array(vectors)
 
-        return self.__scheduler(index_file_key, vectors, k)
+        return self.__scheduler(index_file_key, query_vectors, k)
 
 
     def __scheduler(self, index_data_key, vectors, k):
         result_list = []
 
-        d = None
-        raw_vectors = None
-        print("__scheduler: vectors: ", vectors)
-        query_vectors = np.asarray(vectors).astype('float32')
-
         if 'raw' in index_data_key:
             raw_vectors = index_data_key['raw']
-            raw_vectors = np.asarray(raw_vectors).astype('float32')
             d = index_data_key['dimension']
-
-        if 'raw' in index_data_key:
             index_builder = build_index.FactoryIndex()
-            print("d: ", d, " raw_vectors: ", raw_vectors)
             index = index_builder().build(d, raw_vectors)
             searcher = search_index.FaissSearch(index)
-            result_list.append(searcher.search_by_vectors(query_vectors, k))
+            result_list.append(searcher.search_by_vectors(vectors, k))
 
         index_data_list = index_data_key['index']
         for key in index_data_list:
             index = GetIndexData(key)
             searcher = search_index.FaissSearch(index)
-            result_list.append(searcher.search_by_vectors(query_vectors, k))
+            result_list.append(searcher.search_by_vectors(vectors, k))
 
         if len(result_list) == 1:
             return result_list[0].vectors
diff --git a/pyengine/engine/controller/tests/test_vector_engine.py b/pyengine/engine/controller/tests/test_vector_engine.py
index 0a7d1934822821b1e0c099916f9c87c26b7f6c69..25eb5a9ed6b0444c2669c42f6df1bdda28f4c23c 100644
--- a/pyengine/engine/controller/tests/test_vector_engine.py
+++ b/pyengine/engine/controller/tests/test_vector_engine.py
@@ -3,6 +3,7 @@ from engine.settings import DATABASE_DIRECTORY
 from flask import jsonify
 import pytest
 import os
+import numpy as np
 import logging
 
 logging.basicConfig(level = logging.INFO,format = '%(asctime)s - %(name)s - %(levelname)s - %(message)s')
@@ -104,10 +105,12 @@ class TestVectorEngine:
         expected_list = [self.__vector]
         vector_list = VectorEngine.GetVectorListFromRawFile('test_group', filename)
 
+
         print('expected_list: ', expected_list)
         print('vector_list: ', vector_list)
+        expected_list = np.asarray(expected_list).astype('float32')
 
-        assert vector_list == expected_list
+        assert np.all(vector_list == expected_list)
 
         code = VectorEngine.ClearRawFile('test_group')
         assert code == VectorEngine.SUCCESS_CODE
diff --git a/pyengine/engine/controller/vector_engine.py b/pyengine/engine/controller/vector_engine.py
index 0d1e32f7b88f376f73fa501cdd35e31837910987..9a44b2c02bcdc32ab377d7644d803f117cab45eb 100644
--- a/pyengine/engine/controller/vector_engine.py
+++ b/pyengine/engine/controller/vector_engine.py
@@ -144,7 +144,7 @@ class VectorEngine(object):
         index_keys = [ i.filename for i in files if i.type == 'index' ]
         index_map = {}
         index_map['index'] = index_keys
-        index_map['raw'] = VectorEngine.GetVectorListFromRawFile(group_id, "fakename")
+        index_map['raw'] = VectorEngine.GetVectorListFromRawFile(group_id, "fakename") #TODO: pass by key, get from storage
         index_map['dimension'] = group.dimension
 
         scheduler_instance = Scheduler()
@@ -188,8 +188,7 @@ class VectorEngine(object):
 
     @staticmethod
     def GetVectorListFromRawFile(group_id, filename="todo"):
-        return VectorEngine.group_dict[group_id]
-        # return serialize.to_array(VectorEngine.group_dict[group_id])
+        return serialize.to_array(VectorEngine.group_dict[group_id])
 
     @staticmethod
     def ClearRawFile(group_id):