feat: ref indexer avoid getting abspath

jina/executors/indexers/vector.py

@@ -49,7 +49,6 @@ def __init__(self,
         self.compress_level = compress_level
         self.key_bytes = b''
         self.key_dtype = None
-        self._ref_index_abspath = None
         self.valid_indices = np.array([], dtype=bool)
 
         if ref_indexer:
@@ -62,8 +61,14 @@ def __init__(self,
             self._size = ref_indexer._size
             # point to the ref_indexer.index_filename
             # so that later in `post_init()` it will load from the referred index_filename
-            self._ref_index_abspath = ref_indexer.index_abspath
             self.valid_indices = ref_indexer.valid_indices
+            self.index_filename = ref_indexer.index_filename
+            self.logger.warning(f'\n'
+                                f'num_dim extracted from `ref_indexer` to {ref_indexer.num_dim} \n'
+                                f'_size extracted from `ref_indexer` to {ref_indexer._size} \n'
+                                f'dtype extracted from `ref_indexer` to {ref_indexer.dtype} \n'
+                                f'compress_level overriden from `ref_indexer` to {ref_indexer.compress_level} \n'
+                                f'index_filename overriden from `ref_indexer` to {ref_indexer.index_filename}')
 
     @property
     def index_abspath(self) -> str:

tests/integration/ref_indexer/index.yml

@@ -0,0 +1,5 @@
+!Flow
+pods:
+  indexer:
+    uses: pods/indexer.yml
+    parallel: $JINA_TEST_REF_INDEXER_PARALLEL

tests/integration/ref_indexer/pods/indexer.yml

@@ -0,0 +1,6 @@
+!NumpyIndexer
+with:
+  index_filename: 'index.gz'
+metas:
+  workspace: $JINA_TEST_INDEXER_WITH_REF_INDEXER
+  name: wrapidx

tests/integration/ref_indexer/pods/indexer_with_ref.yml

@@ -0,0 +1,12 @@
+!NumpyIndexer
+with:
+  ref_indexer:
+    !NumpyIndexer
+    with:
+      index_filename: 'index.gz'
+    metas:
+      workspace: $JINA_TEST_INDEXER_WITH_REF_INDEXER_QUERY
+      name: wrapidx
+metas:
+  name: indexer
+  workspace: $JINA_TEST_INDEXER_WITH_REF_INDEXER_QUERY

tests/integration/ref_indexer/query.yml

@@ -0,0 +1,5 @@
+!Flow
+pods:
+  indexer:
+    uses: pods/indexer_with_ref.yml
+    parallel: $JINA_TEST_REF_INDEXER_PARALLEL

tests/integration/ref_indexer/test_numpy_indexer_with_ref_indexer.py

@@ -0,0 +1,91 @@
+import os
+import shutil
+
+import numpy as np
+import pytest
+
+from jina.flow import Flow
+from jina import Document
+
+
+@pytest.fixture
+def parallel(request):
+    os.environ['JINA_TEST_REF_INDEXER_PARALLEL'] = str(request.param)
+    yield
+    del os.environ['JINA_TEST_REF_INDEXER_PARALLEL']
+
+
+@pytest.fixture
+def index_docs():
+    docs = []
+    for idx in range(0, 100):
+        doc = Document()
+        doc.id = f'{idx:0>16}'
+        doc.embedding = doc.embedding = np.array([idx, idx])
+        docs.append(doc)
+    return docs
+
+
+@pytest.fixture
+def random_workspace(tmpdir):
+    os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER'] = str(tmpdir)
+    os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER_QUERY'] = str(tmpdir)
+    yield
+    del os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER']
+    del os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER_QUERY']
+
+
+@pytest.mark.parametrize('parallel', [1, 2], indirect=True)
+def test_indexer_with_ref_indexer(random_workspace, parallel, index_docs, mocker):
+    top_k = 10
+    with Flow.load_config('index.yml') as index_flow:
+        index_flow.index(input_fn=index_docs, batch_size=10)
+
+    mock = mocker.Mock()
+
+    def validate_response(resp):
+        mock()
+        assert len(resp.search.docs) == 1
+        assert len(resp.search.docs[0].matches) == top_k
+
+    query_document = Document()
+    query_document.embedding = np.array([1, 1])
+    with Flow.load_config('query.yml') as query_flow:
+        query_flow.search(input_fn=[query_document], on_done=validate_response, top_k=top_k)
+
+    mock.assert_called_once()
+
+
+@pytest.fixture
+def random_workspace_move(tmpdir):
+    os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER'] = str(tmpdir) + '/index'
+    os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER_QUERY'] = str(tmpdir) + '/query'
+    yield
+    del os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER']
+    del os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER_QUERY']
+
+
+@pytest.mark.parametrize('parallel', [1, 2], indirect=True)
+def test_indexer_with_ref_indexer_move(random_workspace_move, parallel, index_docs, mocker):
+    top_k = 10
+    with Flow.load_config('index.yml') as index_flow:
+        index_flow.index(input_fn=index_docs, batch_size=10)
+
+    mock = mocker.Mock()
+
+    shutil.copytree(os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER'],
+                    os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER_QUERY'])
+
+    shutil.rmtree(os.environ['JINA_TEST_INDEXER_WITH_REF_INDEXER'])
+
+    def validate_response(resp):
+        mock()
+        assert len(resp.search.docs) == 1
+        assert len(resp.search.docs[0].matches) == top_k
+
+    query_document = Document()
+    query_document.embedding = np.array([1, 1])
+    with Flow.load_config('query.yml') as query_flow:
+        query_flow.search(input_fn=[query_document], on_done=validate_response, top_k=top_k)
+
+    mock.assert_called_once()

tests/unit/executors/indexers/test_numpyindexer.py

@@ -361,3 +361,34 @@ def test_numpy_indexer_known_and_delete(batch_size, compress_level, test_metas):
         assert idx.shape == dist.shape
         assert idx.shape == (len(queries), top_k)
         np.testing.assert_equal(indexer.query_by_id([6, 5]), vectors[[2, 1]])
+
+
+@pytest.mark.parametrize('compress_level', [0, 1, 2, 3])
+def test_numpy_indexer_with_ref_indexer(compress_level, test_metas):
+    vectors = np.array([[1, 1, 1],
+                        [10, 10, 10],
+                        [100, 100, 100],
+                        [1000, 1000, 1000]])
+    keys = np.array([4, 5, 6, 7]).reshape(-1, 1)
+    with NumpyIndexer(metric='euclidean', index_filename='np.test.gz', compress_level=compress_level,
+                      metas=test_metas) as indexer:
+        indexer.add(keys, vectors)
+        indexer.save()
+        assert os.path.exists(indexer.index_abspath)
+        index_filename = indexer.index_filename
+
+    queries = np.array([[1, 1, 1],
+                        [10, 10, 10],
+                        [100, 100, 100],
+                        [1000, 1000, 1000]])
+    with NumpyIndexer(metric='euclidean', ref_indexer=indexer, metas=test_metas) as new_indexer:
+        assert new_indexer.compress_level == compress_level
+        assert new_indexer.index_filename == index_filename
+        assert isinstance(indexer, NumpyIndexer)
+        if compress_level == 0:
+            assert isinstance(new_indexer.query_handler, np.memmap)
+        idx, dist = new_indexer.query(queries, top_k=2)
+        np.testing.assert_equal(idx, np.array([[4, 5], [5, 4], [6, 5], [7, 6]]))
+        assert idx.shape == dist.shape
+        assert idx.shape == (4, 2)
+        np.testing.assert_equal(new_indexer.query_by_id([7, 4]), vectors[[3, 0]])