Async Queue | using signed urls from objects so client can downlaod directly from object store

src/common/providers/ray.py

@@ -61,14 +61,24 @@ def connect(cls):
         host, port = cls.get_host_port()
         if not verify_connection(host, port):
             raise ConnectionError(f"Ray is not listening on {host}:{port}")
-
-        logger.info(f"Connecting to Ray at {cls.ray_url}...")
         ray.init(logging_level="error", address=cls.ray_url)
-        logger.info("Connected to Ray")
 
     @classmethod
     def connected(cls) -> bool:
-        return ray.is_initialized() and cls.is_listening()
+
+        connected = ray.is_initialized() and cls.is_listening()
+
+        if connected:
+
+            try:
+                ray.get_actor("Controller", namespace="NDIF")
+            except:
+                return False
+            else:
+                return True
+
+        return False
+
 
     @classmethod
     def reset(cls):

src/common/providers/socketio.py

@@ -29,7 +29,6 @@ def to_env(cls) -> dict:
     @classmethod
     @retry
     def connect(cls):
-        logger.info(f"Connecting to API at {cls.api_url}...")
         if cls.sio is None:
             logger.debug("Creating new socketio client")
             cls.sio = socketio.SimpleClient(reconnection_attempts=10)
@@ -42,17 +41,11 @@ def connect(cls):
         )
         # Wait for connection to be fully established
         time.sleep(0.1)
-        logger.info("Connected to API")
 
     @classmethod
     def disconnect(cls):
-        logger.debug("SioProvider.disconnect() called")
         if cls.sio is not None:
-            logger.info("Disconnecting socketio client")
             cls.sio.disconnect()
-            logger.debug("Socketio client disconnected")
-        else:
-            logger.debug("No socketio client to disconnect")
 
     @classmethod
     def connected(cls) -> bool:

src/common/schema/mixins.py

@@ -50,6 +50,9 @@ class ObjectStorageMixin(BaseModel):
     @classmethod
     def object_name(cls, id: str):
         return f"{id}.{cls._file_extension}"
+
+    def _url(self, client: boto3.client) -> str:
+        return client.generate_presigned_url('get_object', Params={'Bucket': self._bucket_name, 'Key': self.object_name(self.id)}, ExpiresIn=3600 * 6)
 
     def _save(self, client: boto3.client, data: BytesIO, content_type: str, bucket_name: str = None) -> None:
         bucket_name = self._bucket_name if bucket_name is None else bucket_name

src/common/schema/result.py

@@ -1,10 +1,13 @@
 from typing import ClassVar
-from pydantic import ConfigDict
+from pydantic import ConfigDict 
 from .mixins import ObjectStorageMixin
-
+from ..providers.objectstore import ObjectStoreProvider
 class BackendResultModel(ObjectStorageMixin):
-
-    model_config = ConfigDict(extra='allow')
+    model_config = ConfigDict(extra='allow', validate_assignment=False, frozen=False, arbitrary_types_allowed=True, str_strip_whitespace=False, strict=False)
 
     _bucket_name: ClassVar[str] = "dev-ndif-results"
     _file_extension: ClassVar[str] = "pt"
+
+    def url(self) -> str:
+        return self._url(ObjectStoreProvider.object_store)
+

src/services/api/src/app.py

@@ -6,27 +6,22 @@
 import redis
 import socketio
 import uvicorn
-from fastapi import BackgroundTasks, Depends, FastAPI, Request
+from fastapi import BackgroundTasks, Depends, FastAPI
 from fastapi.middleware.cors import CORSMiddleware
-from fastapi.responses import StreamingResponse
-
-from fastapi_cache.decorator import cache
 from fastapi_socketio import SocketManager
-from nnsight.schema.response import ResponseModel
 from prometheus_fastapi_instrumentator import Instrumentator
 
-from .types import REQUEST_ID, SESSION_ID
+from nnsight.schema.response import ResponseModel
+
 from .logging import set_logger
+from .types import REQUEST_ID, SESSION_ID
 
 logger = set_logger("API")
 
 from .dependencies import validate_request
 from .metrics import NetworkStatusMetric
 from .providers.objectstore import ObjectStoreProvider
-from .schema import (BackendRequestModel, BackendResponseModel,
-                     BackendResultModel)
-
-
+from .schema import BackendRequestModel, BackendResponseModel
 
 # Init FastAPI app
 app = FastAPI()
@@ -64,7 +59,7 @@
 @app.post("/request")
 async def request(
     background_tasks: BackgroundTasks,
-    backend_request: BackendRequestModel = Depends(validate_request)
+    backend_request: BackendRequestModel = Depends(validate_request),
 ) -> BackendResponseModel:
     """Endpoint to submit request. See src/common/schema/request.py to see the headers and data that are validated and populated.
 
@@ -108,36 +103,6 @@ async def request(
     return response
 
 
-# @app.delete("/request/{request_id}")
-# async def delete_request(request_id: str):
-#     """Delete a submitted request, provided it is either queued or running"""
-#     try:
-#         endpoint = f"http://{os.environ.get('QUEUE_URL')}/queue/{request_id}"
-#         async with httpx.AsyncClient() as client:
-#             response = await client.delete(endpoint)
-#             response.raise_for_status()
-#             return {"message": f"Request {request_id} successfully submitted for deletion!"}
-#     except httpx.HTTPStatusError as e:
-#         # Handle HTTP errors from the queue service
-#         if e.response is not None and e.response.status_code == 404:
-#             raise HTTPException(status_code=404, detail=f"Request {request_id} not found")
-#         elif e.response is not None and e.response.status_code == 500:
-#             # Try to extract the error message from the queue service
-#             try:
-#                 error_detail = e.response.json().get('detail', str(e))
-#             except:
-#                 error_detail = str(e)
-#             raise HTTPException(status_code=500, detail=f"Failed to delete request: {error_detail}")
-#         else:
-#             status = e.response.status_code if e.response is not None else 500
-#             raise HTTPException(status_code=status, detail=str(e))
-#     except httpx.RequestError as e:
-#         # Handle connection errors, timeouts, etc.
-#         raise HTTPException(status_code=503, detail=f"Queue service unavailable: {e}")
-#     except Exception as e:
-#         raise HTTPException(status_code=500, detail=f"Unexpected error: {e}")
-
-
 @sm.on("connect")
 async def connect(session_id: SESSION_ID, environ: Dict):
     params = environ.get("QUERY_STRING")
@@ -149,14 +114,18 @@ async def connect(session_id: SESSION_ID, environ: Dict):
 
 
 @sm.on("blocking_response")
-async def blocking_response(session_id: SESSION_ID, client_session_id: SESSION_ID, data: Any):
+async def blocking_response(
+    session_id: SESSION_ID, client_session_id: SESSION_ID, data: Any
+):
 
     await sm.emit("blocking_response", data=data, to=client_session_id)
 
 
 @sm.on("stream")
-async def stream(session_id: SESSION_ID,  client_session_id: SESSION_ID, data: bytes, job_id: str):
-
+async def stream(
+    session_id: SESSION_ID, client_session_id: SESSION_ID, data: bytes, job_id: str
+):
+
     await sm.enter_room(session_id, job_id)
 
     await blocking_response(session_id, client_session_id, data)
@@ -183,65 +152,20 @@ async def response(id: REQUEST_ID) -> BackendResponseModel:
     return BackendResponseModel.load(ObjectStoreProvider.object_store, id)
 
 
-@app.get("/result/{id}")
-async def result(id: REQUEST_ID) -> BackendResultModel:
-    """Endpoint to retrieve result for id.
-
-    Args:
-        id: ID of request/response.
-
-    Returns:
-        BackendResultModel: Result.
-
-    Yields:
-        Iterator[BackendResultModel]: _description_
-    """
-
-    # Get cursor to bytes stored in data backend.
-    object, content_length = BackendResultModel.load(ObjectStoreProvider.object_store, id, stream=True)
-
-    # Inform client the total size of result in bytes.
-    headers = {
-        "Content-length": str(content_length),
-    }
-
-    def stream():
-        try:
-            while True:
-                data = object.read(8192)
-                if not data:
-                    break
-                yield data
-        finally:
-            object.close()
-
-            BackendResultModel.delete(ObjectStoreProvider.object_store, id)
-            BackendResponseModel.delete(ObjectStoreProvider.object_store, id)
-            BackendRequestModel.delete(ObjectStoreProvider.object_store, id)
-
-    return StreamingResponse(
-        content=stream(),
-        media_type="application/octet-stream",
-        headers=headers,
-    )
-
-
 @app.get("/ping", status_code=200)
 async def ping():
-    """Endpoint to check if the server is online.
-    """
+    """Endpoint to check if the server is online."""
     return "pong"
 
 
 @app.get("/status", status_code=200)
 async def status():
-    
+
     id = str(os.getpid())
-    
+
     await redis_client.lpush("status", id)
     result = await redis_client.brpop(id)
     return pickle.loads(result[1])
-
 
 
 if __name__ == "__main__":

src/services/api/src/dependencies.py

@@ -55,6 +55,10 @@ async def validate_python_version(python_version: str) -> str:
     Raises:
         HTTPException: If the Python version is missing or incompatible.
     """
+
+    if DEV_MODE:
+        return python_version
+
     server_python_version = '.'.join(sys.version.split('.')[0:2])  # e.g. 3.12
     user_python_version = '.'.join(python_version.split('.')[0:2])
 
@@ -85,6 +89,10 @@ async def validate_nnsight_version(nnsight_version: str) -> str:
     Raises:
         HTTPException: If the nnsight version is missing or incompatible.
     """
+
+    if DEV_MODE:
+        return nnsight_version
+
     if nnsight_version == '':
         raise HTTPException(
             status_code=HTTP_400_BAD_REQUEST,
@@ -143,7 +151,7 @@ async def validate_request(raw_request: Request) -> BackendRequestModel:
     nnsight_version = raw_request.headers.get("nnsight-version", "")
     python_version = raw_request.headers.get("python-version", "")
 
-    # Validate using existing dependency functions (call them directly, not as dependencies)
+    # # Validate using existing dependency functions (call them directly, not as dependencies)
     await authenticate_api_key(api_key)
     await validate_nnsight_version(nnsight_version)
     await validate_python_version(python_version)

src/services/api/src/gunicorn.conf.py

@@ -1,6 +1,6 @@
 from multiprocessing import Process
-from src.queue.coordinator import Coordinator
+from src.queue.dispatcher import Dispatcher
 
 def on_starting(server):
 
-    Process(target=Coordinator.start, daemon=False).start()
+    Process(target=Dispatcher.start, daemon=False).start()