perf: Default to async endpoints, use threadpool for sync (feast-dev#4647)

Author: robhowley

sdk/python/feast/feature_server.py

@@ -10,6 +10,7 @@
 import psutil
 from dateutil import parser
 from fastapi import Depends, FastAPI, Request, Response, status
+from fastapi.concurrency import run_in_threadpool
 from fastapi.logger import logger
 from fastapi.responses import JSONResponse
 from google.protobuf.json_format import MessageToDict
@@ -112,7 +113,7 @@ async def get_body(request: Request):
         "/get-online-features",
         dependencies=[Depends(inject_user_details)],
     )
-    def get_online_features(body=Depends(get_body)):
+    async def get_online_features(body=Depends(get_body)):
         body = json.loads(body)
         full_feature_names = body.get("full_feature_names", False)
         entity_rows = body["entities"]
@@ -145,15 +146,22 @@ def get_online_features(body=Depends(get_body)):
                     resource=od_feature_view, actions=[AuthzedAction.READ_ONLINE]
                 )
 
-        response_proto = store.get_online_features(
+        read_params = dict(
             features=features,
             entity_rows=entity_rows,
             full_feature_names=full_feature_names,
-        ).proto
+        )
+
+        if store._get_provider().async_supported.online.read:
+            response = await store.get_online_features_async(**read_params)
+        else:
+            response = await run_in_threadpool(
+                lambda: store.get_online_features(**read_params)
+            )
 
         # Convert the Protobuf object to JSON and return it
         return MessageToDict(
-            response_proto, preserving_proto_field_name=True, float_precision=18
+            response.proto, preserving_proto_field_name=True, float_precision=18
         )
 
     @app.post("/push", dependencies=[Depends(inject_user_details)])

sdk/python/feast/infra/online_stores/dynamodb.py

@@ -23,6 +23,7 @@
 from feast.infra.infra_object import DYNAMODB_INFRA_OBJECT_CLASS_TYPE, InfraObject
 from feast.infra.online_stores.helpers import compute_entity_id
 from feast.infra.online_stores.online_store import OnlineStore
+from feast.infra.supported_async_methods import SupportedAsyncMethods
 from feast.protos.feast.core.DynamoDBTable_pb2 import (
     DynamoDBTable as DynamoDBTableProto,
 )
@@ -88,6 +89,10 @@ class DynamoDBOnlineStore(OnlineStore):
     _dynamodb_resource = None
     _aioboto_session = None
 
+    @property
+    def async_supported(self) -> SupportedAsyncMethods:
+        return SupportedAsyncMethods(read=True)
+
     def update(
         self,
         config: RepoConfig,

sdk/python/feast/infra/online_stores/online_store.py

@@ -22,6 +22,7 @@
 from feast.feature_view import FeatureView
 from feast.infra.infra_object import InfraObject
 from feast.infra.registry.base_registry import BaseRegistry
+from feast.infra.supported_async_methods import SupportedAsyncMethods
 from feast.online_response import OnlineResponse
 from feast.protos.feast.core.Registry_pb2 import Registry as RegistryProto
 from feast.protos.feast.types.EntityKey_pb2 import EntityKey as EntityKeyProto
@@ -36,6 +37,10 @@ class OnlineStore(ABC):
     The interface that Feast uses to interact with the storage system that handles online features.
     """
 
+    @property
+    def async_supported(self) -> SupportedAsyncMethods:
+        return SupportedAsyncMethods()
+
     @abstractmethod
     def online_write_batch(
         self,

sdk/python/feast/infra/passthrough_provider.py

@@ -35,6 +35,7 @@
 from feast.infra.online_stores.helpers import get_online_store_from_config
 from feast.infra.provider import Provider
 from feast.infra.registry.base_registry import BaseRegistry
+from feast.infra.supported_async_methods import ProviderAsyncMethods
 from feast.online_response import OnlineResponse
 from feast.protos.feast.core.Registry_pb2 import Registry as RegistryProto
 from feast.protos.feast.types.EntityKey_pb2 import EntityKey as EntityKeyProto
@@ -79,6 +80,12 @@ def offline_store(self):
             )
         return self._offline_store
 
+    @property
+    def async_supported(self) -> ProviderAsyncMethods:
+        return ProviderAsyncMethods(
+            online=self.online_store.async_supported,
+        )
+
     @property
     def batch_engine(self) -> BatchMaterializationEngine:
         if self._batch_engine:

sdk/python/feast/infra/provider.py

@@ -27,6 +27,7 @@
 from feast.infra.infra_object import Infra
 from feast.infra.offline_stores.offline_store import RetrievalJob
 from feast.infra.registry.base_registry import BaseRegistry
+from feast.infra.supported_async_methods import ProviderAsyncMethods
 from feast.on_demand_feature_view import OnDemandFeatureView
 from feast.online_response import OnlineResponse
 from feast.protos.feast.core.Registry_pb2 import Registry as RegistryProto
@@ -55,6 +56,10 @@ class Provider(ABC):
     def __init__(self, config: RepoConfig):
         pass
 
+    @property
+    def async_supported(self) -> ProviderAsyncMethods:
+        return ProviderAsyncMethods()
+
     @abstractmethod
     def update_infra(
         self,

sdk/python/feast/infra/supported_async_methods.py

@@ -0,0 +1,10 @@
+from pydantic import BaseModel, Field
+
+
+class SupportedAsyncMethods(BaseModel):
+    read: bool = Field(default=False)
+    write: bool = Field(default=False)
+
+
+class ProviderAsyncMethods(BaseModel):
+    online: SupportedAsyncMethods = Field(default_factory=SupportedAsyncMethods)