def model_service_worker(socket_patches):
model_service_worker = MXNetModelServiceWorker('unix', 'my-socket', None,
None)
model_service_worker.sock = socket_patches.socket
model_service_worker.service = Service('name', 'mpath', 'testmanifest',
None, 0, 1)
return model_service_worker
def load(self, model_name, model_dir, handler, gpu_id, batch_size):
"""
Load MMS 0.3 model from file.
:param model_name:
:param model_dir:
:param handler:
:param gpu_id:
:param batch_size:
:return:
"""
manifest_file = os.path.join(model_dir, "MANIFEST.json")
manifest = None
if os.path.isfile(manifest_file):
with open(manifest_file) as f:
manifest = json.load(f)
if not handler.endswith(".py"):
handler = handler + ".py"
service_file = os.path.join(model_dir, handler)
name = os.path.splitext(os.path.basename(service_file))[0]
if sys.version_info[0] > 2:
from importlib import util
spec = util.spec_from_file_location(name, service_file)
module = util.module_from_spec(spec)
spec.loader.exec_module(module)
else:
import imp
module = imp.load_source(name, service_file)
if module is None:
raise ValueError("Unable to load module {}".format(service_file))
from mms.model_service.mxnet_model_service import SingleNodeService
model_class_definitions = ModelLoader.list_model_services(
module, SingleNodeService)
module_class = model_class_definitions[0]
module = module_class(model_name, model_dir, manifest, gpu_id)
service = Service(model_name, model_dir, manifest, module.handle,
gpu_id, batch_size)
module.initialize(service.context)
return service
def load(self, model_name, model_dir, handler, gpu_id, batch_size):
"""
Load MMS 1.0 model from file.
:param model_name:
:param model_dir:
:param handler:
:param gpu_id:
:param batch_size:
:return:
"""
logging.debug("Loading model - working dir: %s", os.getcwd())
# TODO: Request ID is not given. UUID is a temp UUID.
metrics = MetricsStore(uuid.uuid4(), model_name)
manifest_file = os.path.join(model_dir, "MAR-INF/MANIFEST.json")
manifest = None
if os.path.exists(manifest_file):
with open(manifest_file) as f:
manifest = json.load(f)
temp = handler.split(":", 1)
module_name = temp[0]
function_name = None if len(temp) == 1 else temp[1]
if module_name.endswith(".py"):
module_name = module_name[:-3]
module = importlib.import_module(module_name)
if module is None:
raise ValueError(
"Unable to load module {}, make sure it is added to python path"
.format(module_name))
if function_name is None:
function_name = "handle"
if hasattr(module, function_name):
entry_point = getattr(module, function_name)
service = Service(model_name, model_dir, manifest, entry_point,
gpu_id, batch_size)
service.context.metrics = metrics
# initialize model at load time
entry_point(None, service.context)
else:
model_class_definitions = ModelLoader.list_model_services(module)
if len(model_class_definitions) != 1:
raise ValueError(
"Expected only one class in custom service code or a function entry point"
)
model_class = model_class_definitions[0]
model_service = model_class()
handle = getattr(model_service, "handle")
if handle is None:
raise ValueError("Expect handle method in class {}".format(
str(model_class)))
service = Service(model_name, model_dir, manifest,
model_service.handle, gpu_id, batch_size)
initialize = getattr(model_service, "initialize")
if initialize is not None:
# noinspection PyBroadException
try:
model_service.initialize(service.context)
# pylint: disable=broad-except
except Exception:
# noinspection PyBroadException
try:
sys.exc_clear()
# pylint: disable=broad-except
except Exception:
pass
return service