def __create_unary_process(self, table: _DTable, func):
operand = self.__create_storage_locator_from_dtable(table)
task_info = self.__create_task_info(func=func, is_in_place_computing=table.get_in_place_computing())
return processor_pb2.UnaryProcess(info=task_info,
operand=operand,
conf=processor_pb2.ProcessConf(namingPolicy=self.eggroll_context.get_naming_policy().name))
def reduce(self, _table, func):
func_id, func_bytes = self.serialize_and_hash_func(func)
rtn = None
results = []
for partition in range(_table.partition):
operand = EggRoll.__get_storage_locator(_table, partition)
proc_id = partition % len(self.proc_list)
channel, stub = self.proc_list[proc_id]
unary_p = processor_pb2.UnaryProcess(
operand=operand,
info=processor_pb2.TaskInfo(task_id=self.job_id,
function_id=func_id,
function_bytes=func_bytes))
results = results + list(stub.reduce(unary_p))
rs = []
for val in results:
if len(val.value) > 0:
rs.append(self._serdes.deserialize(val.value))
rs = [r for r in filter(partial(is_not, None), rs)]
if len(results) <= 0:
return rtn
rtn = rs[0]
for r in rs[1:]:
rtn = func(rtn, r)
return rtn
def __create_unary_process(self, table: _DTable, func):
operand = self.__create_storage_locator_from_dtable(table)
task_info = self.__create_task_info(
func=func, is_in_place_computing=table.get_in_place_computing())
return processor_pb2.UnaryProcess(
info=task_info,
operand=operand,
session=self.eggroll_session.to_protobuf())
def process_wrapper(req_type, func, result, req):
try:
req_pb = processor_pb2.UnaryProcess(
) if req_type == "UnaryProcess" else processor_pb2.BinaryProcess(
)
req_pb.ParseFromString(req)
#TODO context serialize?
func(req_pb, None)
result.put("ok")
except:
err_str = traceback.format_exc()
LOGGER.error(err_str)
result.put("error:" + err_str)
def glom(self, _table):
results = []
func_id = str(uuid.uuid1())
for p in range(_table.partition):
operand = EggRoll.__get_storage_locator(_table, p)
unary_p = processor_pb2.UnaryProcess(operand=operand,
info=processor_pb2.TaskInfo(
task_id=self.job_id,
function_id=func_id))
proc_id = p % len(self.proc_list)
channel, stub = self.proc_list[proc_id]
results.append(stub.glom.future(unary_p))
for r in results:
result = r.result()
return _DTable(self, result.type, result.namespace, result.name,
_table.partition)
def mapValues(self, _table, func):
func_id, func_bytes = self.serialize_and_hash_func(func)
results = []
for partition in range(_table.partition):
operand = EggRoll.__get_storage_locator(_table, partition)
unary_p = processor_pb2.UnaryProcess(
operand=operand,
info=processor_pb2.TaskInfo(task_id=self.job_id,
function_id=func_id,
function_bytes=func_bytes))
proc_id = partition % len(self.proc_list)
channel, stub = self.proc_list[proc_id]
results.append(stub.mapValues.future(unary_p))
for r in results:
result = r.result()
return _DTable(self, result.type, result.namespace, result.name,
_table.partition)
def sample(self, _table, fraction, seed):
if fraction < 0 or fraction > 1:
raise ValueError("fraction must be in [0, 1]")
func_bytes = self._serdes.serialize((fraction, seed))
results = []
func_id = str(uuid.uuid1())
for p in range(_table.partition):
operand = EggRoll.__get_storage_locator(_table, p)
unary_p = processor_pb2.UnaryProcess(
operand=operand,
info=processor_pb2.TaskInfo(task_id=self.job_id,
function_id=func_id,
function_bytes=func_bytes))
proc_id = p % len(self.proc_list)
channel, stub = self.proc_list[proc_id]
results.append(stub.sample.future(unary_p))
for r in results:
result = r.result()
return _DTable(self, result.type, result.namespace, result.name,
_table.partition)
