feat: Make keep-alive timeout configurable for async DynamoDB connections (feast-dev#5167)

Make keepalive_timeout configurable

Signed-off-by: Sebastian Jäger <[email protected]>
Co-authored-by: Sebastian Jäger <[email protected]>

Author: sebastjaeger

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

@@ -82,6 +82,9 @@ class DynamoDBOnlineStoreConfig(FeastConfigBaseModel):
     max_pool_connections: int = 10
     """Max number of connections for async Dynamodb operations"""
 
+    keepalive_timeout: float = 12.0
+    """Keep-alive timeout in seconds for async Dynamodb connections."""
+
 
 class DynamoDBOnlineStore(OnlineStore):
     """
@@ -97,7 +100,9 @@ class DynamoDBOnlineStore(OnlineStore):
 
     async def initialize(self, config: RepoConfig):
         await _get_aiodynamodb_client(
-            config.online_store.region, config.online_store.max_pool_connections
+            config.online_store.region,
+            config.online_store.max_pool_connections,
+            config.online_store.keepalive_timeout,
         )
 
     async def close(self):
@@ -272,7 +277,9 @@ async def online_write_batch_async(
             for entity_key, features, timestamp, _ in _latest_data_to_write(data)
         ]
         client = await _get_aiodynamodb_client(
-            online_config.region, config.online_store.max_pool_connections
+            online_config.region,
+            online_config.max_pool_connections,
+            online_config.keepalive_timeout,
         )
         await dynamo_write_items_async(client, table_name, items)
 
@@ -377,7 +384,9 @@ def to_tbl_resp(raw_client_response):
             entity_id_batches.append(entity_id_batch)
 
         client = await _get_aiodynamodb_client(
-            online_config.region, online_config.max_pool_connections
+            online_config.region,
+            online_config.max_pool_connections,
+            online_config.keepalive_timeout,
         )
         response_batches = await asyncio.gather(
             *[
@@ -536,14 +545,19 @@ def _get_aioboto_session():
     return _aioboto_session
 
 
-async def _get_aiodynamodb_client(region: str, max_pool_connections: int):
+async def _get_aiodynamodb_client(
+    region: str, max_pool_connections: int, keepalive_timeout: float
+):
     global _aioboto_client
     if _aioboto_client is None:
         logger.debug("initializing the aiobotocore dynamodb client")
         client_context = _get_aioboto_session().create_client(
             "dynamodb",
             region_name=region,
-            config=AioConfig(max_pool_connections=max_pool_connections),
+            config=AioConfig(
+                max_pool_connections=max_pool_connections,
+                connector_args={"keepalive_timeout": keepalive_timeout},
+            ),
         )
         context_stack = contextlib.AsyncExitStack()
         _aioboto_client = await context_stack.enter_async_context(client_context)