[HOTFIX] revert server response with configuration_json for coll config

chromadb/api/async_fastapi.py

@@ -15,6 +15,12 @@
     UpdateCollectionConfiguration,
     create_collection_configuration_to_json,
     update_collection_configuration_to_json,
+    create_collection_configuration_from_legacy_metadata_dict,
+    populate_create_hnsw_defaults,
+    validate_create_hnsw_config,
+    CreateHNSWConfiguration,
+    populate_create_spann_defaults,
+    validate_create_spann_config,
 )
 from chromadb.config import DEFAULT_DATABASE, DEFAULT_TENANT, System, Settings
 from chromadb.telemetry.opentelemetry import (
@@ -311,6 +317,57 @@ async def create_collection(
         )
         model = CollectionModel.from_json(resp_json)
 
+        # TODO: @jairad26 Remove this once server response contains configuration
+        hnsw = None
+        spann = None
+        embedding_function = None
+        if configuration is not None:
+            hnsw = configuration.get("hnsw")
+            spann = configuration.get("spann")
+            embedding_function = configuration.get("embedding_function")
+
+        # if neither are specified, use the legacy metadata to populate the configuration
+        if hnsw is None and spann is None:
+            if model.metadata is not None:
+                # update the configuration with the legacy metadata
+                configuration = (
+                    create_collection_configuration_from_legacy_metadata_dict(
+                        model.metadata
+                    )
+                )
+                hnsw = configuration.get("hnsw")
+                spann = configuration.get("spann")
+
+        else:
+            # At this point we know at least one of hnsw or spann is not None
+            if hnsw is not None:
+                populate_create_hnsw_defaults(hnsw)
+                validate_create_hnsw_config(hnsw)
+            if spann is not None:
+                populate_create_spann_defaults(spann)
+                validate_create_spann_config(spann)
+
+            assert configuration is not None
+            configuration["hnsw"] = hnsw
+            configuration["spann"] = spann
+
+        # if hnsw and spann are both still None, it was neither specified in config nor in legacy metadata
+        # in this case, rfe will take care of defaults, so we just need to populate the hnsw config
+        if hnsw is None and spann is None:
+            hnsw = CreateHNSWConfiguration()
+            populate_create_hnsw_defaults(hnsw)
+            validate_create_hnsw_config(hnsw)
+            if configuration is not None:
+                configuration["hnsw"] = hnsw
+            else:
+                configuration = CreateCollectionConfiguration(hnsw=hnsw)
+
+        assert configuration is not None
+        configuration["embedding_function"] = embedding_function
+        model.configuration_json = create_collection_configuration_to_json(
+            configuration
+        )
+
         return model
 
     @trace_method("AsyncFastAPI.get_collection", OpenTelemetryGranularity.OPERATION)

chromadb/api/collection_configuration.py

@@ -224,6 +224,26 @@ class CreateSpannConfiguration(TypedDict, total=False):
     merge_threshold: int
 
 
+def populate_create_spann_defaults(
+    config: CreateSpannConfiguration,
+) -> CreateSpannConfiguration:
+    if config.get("space") is None:
+        config["space"] = "l2"
+    if config.get("ef_construction") is None:
+        config["ef_construction"] = 200
+    if config.get("max_neighbors") is None:
+        config["max_neighbors"] = 64
+    if config.get("ef_search") is None:
+        config["ef_search"] = 200
+    if config.get("reassign_neighbor_count") is None:
+        config["reassign_neighbor_count"] = 64
+    if config.get("split_threshold") is None:
+        config["split_threshold"] = 200
+    if config.get("merge_threshold") is None:
+        config["merge_threshold"] = 100
+    return config
+
+
 def validate_create_spann_config(
     config: Optional[CreateSpannConfiguration], ef: Optional[EmbeddingFunction] = None  # type: ignore
 ) -> None:

chromadb/api/fastapi.py

@@ -12,6 +12,12 @@
     UpdateCollectionConfiguration,
     update_collection_configuration_to_json,
     create_collection_configuration_to_json,
+    create_collection_configuration_from_legacy_metadata_dict,
+    populate_create_hnsw_defaults,
+    validate_create_hnsw_config,
+    CreateHNSWConfiguration,
+    validate_create_spann_config,
+    populate_create_spann_defaults,
 )
 from chromadb import __version__
 from chromadb.api.base_http_client import BaseHTTPClient
@@ -264,6 +270,58 @@ def create_collection(
         )
         model = CollectionModel.from_json(resp_json)
 
+        # TODO: @jairad26 Remove this once server response contains configuration
+        hnsw = None
+        spann = None
+        embedding_function = None
+        if configuration is not None:
+            hnsw = configuration.get("hnsw")
+            spann = configuration.get("spann")
+            embedding_function = configuration.get("embedding_function")
+
+        # if neither are specified, use the legacy metadata to populate the configuration
+        print("Test legacy metadata: ", model.metadata)
+        if hnsw is None and spann is None:
+            if model.metadata is not None:
+                # update the configuration with the legacy metadata
+                configuration = (
+                    create_collection_configuration_from_legacy_metadata_dict(
+                        model.metadata
+                    )
+                )
+                hnsw = configuration.get("hnsw")
+                spann = configuration.get("spann")
+
+        else:
+            # At this point we know at least one of hnsw or spann is not None
+            if hnsw is not None:
+                populate_create_hnsw_defaults(hnsw)
+                validate_create_hnsw_config(hnsw)
+            if spann is not None:
+                populate_create_spann_defaults(spann)
+                validate_create_spann_config(spann)
+
+            assert configuration is not None
+            configuration["hnsw"] = hnsw
+            configuration["spann"] = spann
+
+        # if hnsw and spann are both still None, it was neither specified in config nor in legacy metadata
+        # in this case, rfe will take care of defaults, so we just need to populate the hnsw config
+        if hnsw is None and spann is None:
+            hnsw = CreateHNSWConfiguration()
+            populate_create_hnsw_defaults(hnsw)
+            validate_create_hnsw_config(hnsw)
+            if configuration is not None:
+                configuration["hnsw"] = hnsw
+            else:
+                configuration = CreateCollectionConfiguration(hnsw=hnsw)
+
+        assert configuration is not None
+        configuration["embedding_function"] = embedding_function
+        model.configuration_json = create_collection_configuration_to_json(
+            configuration
+        )
+
         return model
 
     @trace_method("FastAPI.get_collection", OpenTelemetryGranularity.OPERATION)

chromadb/test/configurations/test_collection_configuration.py

@@ -23,7 +23,8 @@
 import json
 import os
 from chromadb.utils.embedding_functions import register_embedding_function
-from chromadb.test.conftest import ClientFactories
+
+# from chromadb.test.conftest import ClientFactories
 
 
 # Check if we are running in a mode where SPANN is disabled
@@ -274,48 +275,48 @@ def test_hnsw_configuration_updates(client: ClientAPI) -> None:
             assert hnsw_config.get("max_neighbors") == 16
 
 
-def test_configuration_persistence(client_factories: "ClientFactories") -> None:
-    """Test configuration persistence across client restarts"""
-    # Use the factory to create the initial client
-    client = client_factories.create_client_from_system()
-    client.reset()
-
-    # Create collection with specific configuration
-    hnsw_config: CreateHNSWConfiguration = {
-        "space": "cosine",
-        "ef_construction": 100,
-        "max_neighbors": 10,
-    }
-    config: CreateCollectionConfiguration = {
-        "hnsw": hnsw_config,
-        "embedding_function": CustomEmbeddingFunction(dim=5),
-    }
-
-    client.create_collection(
-        name="test_persist_config",
-        configuration=config,
-    )
-
-    # Simulate client restart by creating a new client from the same system
-    client2 = client_factories.create_client_from_system()
-
-    coll = client2.get_collection(
-        name="test_persist_config",
-    )
-
-    loaded_config = load_collection_configuration_from_json(
-        coll._model.configuration_json
-    )
-    if loaded_config and isinstance(loaded_config, dict):
-        hnsw_config = cast(CreateHNSWConfiguration, loaded_config.get("hnsw", {}))
-        assert hnsw_config.get("space") == "cosine"
-        assert hnsw_config.get("ef_construction") == 100
-        assert hnsw_config.get("max_neighbors") == 10
-        assert hnsw_config.get("ef_search") == 100
-
-        ef = loaded_config.get("embedding_function")
-        assert ef is not None
-        assert ef.name() == "custom_ef"
+# def test_configuration_persistence(client_factories: "ClientFactories") -> None:
+#     """Test configuration persistence across client restarts"""
+#     # Use the factory to create the initial client
+#     client = client_factories.create_client_from_system()
+#     client.reset()
+
+#     # Create collection with specific configuration
+#     hnsw_config: CreateHNSWConfiguration = {
+#         "space": "cosine",
+#         "ef_construction": 100,
+#         "max_neighbors": 10,
+#     }
+#     config: CreateCollectionConfiguration = {
+#         "hnsw": hnsw_config,
+#         "embedding_function": CustomEmbeddingFunction(dim=5),
+#     }
+
+#     client.create_collection(
+#         name="test_persist_config",
+#         configuration=config,
+#     )
+
+#     # Simulate client restart by creating a new client from the same system
+#     client2 = client_factories.create_client_from_system()
+
+#     coll = client2.get_collection(
+#         name="test_persist_config",
+#     )
+
+#     loaded_config = load_collection_configuration_from_json(
+#         coll._model.configuration_json
+#     )
+#     if loaded_config and isinstance(loaded_config, dict):
+#         hnsw_config = cast(CreateHNSWConfiguration, loaded_config.get("hnsw", {}))
+#         assert hnsw_config.get("space") == "cosine"
+#         assert hnsw_config.get("ef_construction") == 100
+#         assert hnsw_config.get("max_neighbors") == 10
+#         assert hnsw_config.get("ef_search") == 100
+
+#         ef = loaded_config.get("embedding_function")
+#         assert ef is not None
+#         assert ef.name() == "custom_ef"
 
 
 def test_configuration_result_format(client: ClientAPI) -> None:
@@ -501,48 +502,48 @@ def supported_spaces(self) -> list[Space]:
             assert "SPANN is still in development" in str(excinfo.value)
 
 
-@pytest.mark.skipif(is_spann_disabled_mode, reason=skip_reason_spann_disabled)
-def test_spann_configuration_persistence(client_factories: "ClientFactories") -> None:
-    """Test SPANN configuration persistence across client restarts"""
-    client = client_factories.create_client_from_system()
-    client.reset()
-
-    # Create collection with specific SPANN configuration
-    spann_config: CreateSpannConfiguration = {
-        "space": "cosine",
-        "ef_construction": 100,
-        "max_neighbors": 10,
-        "search_nprobe": 5,
-        "write_nprobe": 10,
-    }
-    config: CreateCollectionConfiguration = {
-        "spann": spann_config,
-        "embedding_function": CustomEmbeddingFunction(dim=5),
-    }
-
-    client.create_collection(
-        name="test_persist_spann_config",
-        configuration=config,
-    )
-
-    client2 = client_factories.create_client_from_system()
-
-    coll = client2.get_collection(
-        name="test_persist_spann_config",
-    )
-
-    loaded_config = load_collection_configuration_from_json(
-        coll._model.configuration_json
-    )
-    if loaded_config and isinstance(loaded_config, dict):
-        spann_config = cast(CreateSpannConfiguration, loaded_config.get("spann", {}))
-        ef = loaded_config.get("embedding_function")
-        assert spann_config.get("space") == "cosine"
-        assert spann_config.get("ef_construction") == 100
-        assert spann_config.get("max_neighbors") == 10
-        assert spann_config.get("search_nprobe") == 5
-        assert spann_config.get("write_nprobe") == 10
-        assert ef is not None
+# @pytest.mark.skipif(is_spann_disabled_mode, reason=skip_reason_spann_disabled)
+# def test_spann_configuration_persistence(client_factories: "ClientFactories") -> None:
+#     """Test SPANN configuration persistence across client restarts"""
+#     client = client_factories.create_client_from_system()
+#     client.reset()
+
+#     # Create collection with specific SPANN configuration
+#     spann_config: CreateSpannConfiguration = {
+#         "space": "cosine",
+#         "ef_construction": 100,
+#         "max_neighbors": 10,
+#         "search_nprobe": 5,
+#         "write_nprobe": 10,
+#     }
+#     config: CreateCollectionConfiguration = {
+#         "spann": spann_config,
+#         "embedding_function": CustomEmbeddingFunction(dim=5),
+#     }
+
+#     client.create_collection(
+#         name="test_persist_spann_config",
+#         configuration=config,
+#     )
+
+#     client2 = client_factories.create_client_from_system()
+
+#     coll = client2.get_collection(
+#         name="test_persist_spann_config",
+#     )
+
+#     loaded_config = load_collection_configuration_from_json(
+#         coll._model.configuration_json
+#     )
+#     if loaded_config and isinstance(loaded_config, dict):
+#         spann_config = cast(CreateSpannConfiguration, loaded_config.get("spann", {}))
+#         ef = loaded_config.get("embedding_function")
+#         assert spann_config.get("space") == "cosine"
+#         assert spann_config.get("ef_construction") == 100
+#         assert spann_config.get("max_neighbors") == 10
+#         assert spann_config.get("search_nprobe") == 5
+#         assert spann_config.get("write_nprobe") == 10
+#         assert ef is not None
 
 
 def test_exclusive_hnsw_spann_configuration(client: ClientAPI) -> None:

chromadb/types.py

@@ -17,7 +17,6 @@
 from chromadb.api.collection_configuration import (
     CollectionConfiguration,
     HNSWConfiguration,
-    SpannConfiguration,
     collection_configuration_to_json,
     load_collection_configuration_from_json,
 )
@@ -156,7 +155,7 @@ def get_configuration(self) -> CollectionConfiguration:
             )
             return CollectionConfiguration(
                 hnsw=HNSWConfiguration(),
-                spann=SpannConfiguration(),
+                spann=None,
                 embedding_function=None,
             )
 
@@ -175,11 +174,11 @@ def get_model_fields(self) -> Dict[Any, Any]:
     @override
     def from_json(cls, json_map: Dict[str, Any]) -> Self:
         """Deserializes a Collection object from JSON"""
-        configuration: CollectionConfiguration = {
-            "hnsw": {},
-            "spann": {},
-            "embedding_function": None,
-        }
+        configuration = CollectionConfiguration(
+            hnsw=None,
+            spann=None,
+            embedding_function=None,
+        )
         try:
             configuration_json = json_map.get("configuration_json", None)
             configuration = load_collection_configuration_from_json(configuration_json)