async def _batch_handler_template(self, requests, api_name):
'''
batch request handler
params:
* requests: list of aiohttp request
* api_name: called API name
raise:
* RemoteException: known exceptions from model server
* Exception: other exceptions
'''
headers = {self._MARSHAL_FLAG: "true"}
api_url = f"http://{self.outbound_host}:{self.outbound_port}/{api_name}"
with async_trace(
ZIPKIN_API_URL,
service_name=self.__class__.__name__,
span_name=f"[2]merged {api_name}",
) as trace_ctx:
headers.update(make_http_headers(trace_ctx))
reqs_s = DataLoader.merge_requests(requests)
try:
async with aiohttp.ClientSession(
auto_decompress=False) as client:
async with client.post(api_url,
data=reqs_s,
headers=headers) as resp:
raw = await resp.read()
except aiohttp.client_exceptions.ClientConnectionError as e:
raise RemoteException(e,
payload=HTTPResponse(
status=503,
body=b"Service Unavailable"))
if resp.status != 200:
raise RemoteException(
f"Bad response status from model server:\n{resp.status}\n{raw}",
payload=HTTPResponse(
status=resp.status,
headers=tuple(resp.headers.items()),
body=raw,
),
)
merged = DataLoader.split_responses(raw)
return tuple(
aiohttp.web.Response(
body=i.body, headers=i.headers, status=i.status or 500)
for i in merged)
async def _batch_handler_template(self, requests, api_route):
'''
batch request handler
params:
* requests: list of aiohttp request
* api_route: called API name
raise:
* RemoteException: known exceptions from model server
* Exception: other exceptions
'''
from aiohttp.client_exceptions import ClientConnectionError
from aiohttp.web import Response
headers = {MARSHAL_REQUEST_HEADER: "true"}
api_url = f"http://{self.outbound_host}:{self.outbound_port}/{api_route}"
with get_tracer().async_span(
service_name=self.__class__.__name__,
span_name=f"[2]merged {api_route}",
request_headers=headers,
):
reqs_s = DataLoader.merge_requests(requests)
try:
client = self.get_client()
async with client.post(api_url, data=reqs_s,
headers=headers) as resp:
raw = await resp.read()
except ClientConnectionError as e:
raise RemoteException(e,
payload=HTTPResponse(
status=503,
body=b"Service Unavailable"))
if resp.status != 200:
raise RemoteException(
f"Bad response status from model server:\n{resp.status}\n{raw}",
payload=HTTPResponse(
status=resp.status,
headers=tuple(resp.headers.items()),
body=raw,
),
)
merged = DataLoader.split_responses(raw)
return tuple(
Response(
body=i.body, headers=i.headers, status=i.status or 500)
for i in merged)
def to_http_response(
self, results: Iterable[InferenceResult],
) -> Iterator[HTTPResponse]:
return (
HTTPResponse(
r.context.http_status,
tuple(r.context.http_headers.items()),
r.context.err_msg or r.data,
)
for r in results
)
def to_http_response(self, result: InferenceResult) -> HTTPResponse:
return HTTPResponse.new(
status=result.http_status,
headers=result.http_headers,
body=result.err_msg or result.data,
)
def to_http_response(self, result: InferenceResult) -> HTTPResponse:
return HTTPResponse(
status=result.http_status,
headers=tuple(result.http_headers.items()),
body=result.err_msg or result.data,
)