fix: Random port allocation for python server in tests (feast-dev#2710)

Signed-off-by: Oleksii Moskalenko <moskalenko.alexey@gmail.com>

sdk/python/tests/conftest.py

@@ -273,12 +273,19 @@ def pytest_generate_tests(metafunc: pytest.Metafunc):
 
 
 @pytest.fixture(scope="session")
-def python_server(environment):
-    assert not _check_port_open("localhost", environment.get_local_server_port())
+def feature_server_endpoint(environment):
+    if (
+        not environment.python_feature_server
+        or environment.test_repo_config.provider != "local"
+    ):
+        yield environment.feature_store.get_feature_server_endpoint()
+        return
+
+    port = _free_port()
 
     proc = Process(
         target=start_test_local_server,
-        args=(environment.feature_store.repo_path, environment.get_local_server_port()),
+        args=(environment.feature_store.repo_path, port),
     )
     if (
         environment.python_feature_server
@@ -287,14 +294,10 @@ def python_server(environment):
         proc.start()
         # Wait for server to start
         wait_retry_backoff(
-            lambda: (
-                None,
-                _check_port_open("localhost", environment.get_local_server_port()),
-            ),
-            timeout_secs=10,
+            lambda: (None, _check_port_open("localhost", port)), timeout_secs=10,
         )
 
-    yield
+    yield f"http://localhost:{port}"
 
     if proc.is_alive():
         proc.kill()
@@ -314,6 +317,12 @@ def _check_port_open(host, port) -> bool:
         return sock.connect_ex((host, port)) == 0
 
 
+def _free_port():
+    sock = socket.socket()
+    sock.bind(("", 0))
+    return sock.getsockname()[1]
+
+
 @pytest.fixture(scope="session")
 def universal_data_sources(environment) -> TestData:
     return construct_universal_test_data(environment)

sdk/python/tests/integration/feature_repos/repo_configuration.py

@@ -2,7 +2,6 @@
 import importlib
 import json
 import os
-import re
 import tempfile
 import uuid
 from dataclasses import dataclass
@@ -328,29 +327,10 @@ class Environment:
     worker_id: str
     online_store_creator: Optional[OnlineStoreCreator] = None
 
-    next_id = 0
-
     def __post_init__(self):
         self.end_date = datetime.utcnow().replace(microsecond=0, second=0, minute=0)
         self.start_date: datetime = self.end_date - timedelta(days=3)
 
-        Environment.next_id += 1
-        self.id = Environment.next_id
-
-    def get_feature_server_endpoint(self) -> str:
-        if self.python_feature_server and self.test_repo_config.provider == "local":
-            return f"http://localhost:{self.get_local_server_port()}"
-        return self.feature_store.get_feature_server_endpoint()
-
-    def get_local_server_port(self) -> int:
-        # Heuristic when running with xdist to extract unique ports for each worker
-        parsed_worker_id = re.findall("gw(\\d+)", self.worker_id)
-        if len(parsed_worker_id) != 0:
-            worker_id_num = int(parsed_worker_id[0])
-        else:
-            worker_id_num = 0
-        return 6000 + 100 * worker_id_num + self.id
-
 
 def table_name_from_data_source(ds: DataSource) -> Optional[str]:
     if hasattr(ds, "table_ref"):

sdk/python/tests/integration/online_store/test_universal_online.py

@@ -288,6 +288,7 @@ def _get_online_features_dict_remotely(
 
 def get_online_features_dict(
     environment: Environment,
+    endpoint: str,
     features: Union[List[str], FeatureService],
     entity_rows: List[Dict[str, Any]],
     full_feature_names: bool = False,
@@ -305,7 +306,6 @@ def get_online_features_dict(
     assertpy.assert_that(online_features).is_not_none()
     dict1 = online_features.to_dict()
 
-    endpoint = environment.get_feature_server_endpoint()
     # If endpoint is None, it means that a local / remote feature server aren't configured
     if endpoint is not None:
         dict2 = _get_online_features_dict_remotely(
@@ -447,7 +447,7 @@ def test_online_retrieval_with_event_timestamps(
 @pytest.mark.goserver
 @pytest.mark.parametrize("full_feature_names", [True, False], ids=lambda v: str(v))
 def test_online_retrieval(
-    environment, universal_data_sources, python_server, full_feature_names
+    environment, universal_data_sources, feature_server_endpoint, full_feature_names
 ):
     fs = environment.feature_store
     entities, datasets, data_sources = universal_data_sources
@@ -547,6 +547,7 @@ def test_online_retrieval(
 
     online_features_dict = get_online_features_dict(
         environment=environment,
+        endpoint=feature_server_endpoint,
         features=feature_refs,
         entity_rows=entity_rows,
         full_feature_names=full_feature_names,
@@ -556,6 +557,7 @@ def test_online_retrieval(
     # feature isn't requested.
     online_features_no_conv_rate = get_online_features_dict(
         environment=environment,
+        endpoint=feature_server_endpoint,
         features=[ref for ref in feature_refs if ref != "driver_stats:conv_rate"],
         entity_rows=entity_rows,
         full_feature_names=full_feature_names,
@@ -616,6 +618,7 @@ def test_online_retrieval(
     # Check what happens for missing values
     missing_responses_dict = get_online_features_dict(
         environment=environment,
+        endpoint=feature_server_endpoint,
         features=feature_refs,
         entity_rows=[{"driver_id": 0, "customer_id": 0, "val_to_add": 100}],
         full_feature_names=full_feature_names,
@@ -635,13 +638,15 @@ def test_online_retrieval(
     with pytest.raises(RequestDataNotFoundInEntityRowsException):
         get_online_features_dict(
             environment=environment,
+            endpoint=feature_server_endpoint,
             features=feature_refs,
             entity_rows=[{"driver_id": 0, "customer_id": 0}],
             full_feature_names=full_feature_names,
         )
 
     assert_feature_service_correctness(
         environment,
+        feature_server_endpoint,
         feature_service,
         entity_rows,
         full_feature_names,
@@ -659,6 +664,7 @@ def test_online_retrieval(
     ]
     assert_feature_service_entity_mapping_correctness(
         environment,
+        feature_server_endpoint,
         feature_service_entity_mapping,
         entity_rows,
         full_feature_names,
@@ -856,6 +862,7 @@ def get_latest_feature_values_for_location_df(entity_row, origin_df, destination
 
 def assert_feature_service_correctness(
     environment,
+    endpoint,
     feature_service,
     entity_rows,
     full_feature_names,
@@ -866,6 +873,7 @@ def assert_feature_service_correctness(
 ):
     feature_service_online_features_dict = get_online_features_dict(
         environment=environment,
+        endpoint=endpoint,
         features=feature_service,
         entity_rows=entity_rows,
         full_feature_names=full_feature_names,
@@ -905,6 +913,7 @@ def assert_feature_service_correctness(
 
 def assert_feature_service_entity_mapping_correctness(
     environment,
+    endpoint,
     feature_service,
     entity_rows,
     full_feature_names,
@@ -914,6 +923,7 @@ def assert_feature_service_entity_mapping_correctness(
     if full_feature_names:
         feature_service_online_features_dict = get_online_features_dict(
             environment=environment,
+            endpoint=endpoint,
             features=feature_service,
             entity_rows=entity_rows,
             full_feature_names=full_feature_names,
@@ -948,6 +958,7 @@ def assert_feature_service_entity_mapping_correctness(
         with pytest.raises(FeatureNameCollisionError):
             get_online_features_dict(
                 environment=environment,
+                endpoint=endpoint,
                 features=feature_service,
                 entity_rows=entity_rows,
                 full_feature_names=full_feature_names,