class FileWriteBatch(PairWriteBatch):
def __init__(self, file):
self.writer = PairBinWriter(FileByteBuffer(file))
def put(self, k, v):
self.writer.write(k, v)
def write(self):
pass
def close(self):
pass
class MmapWriteBatch(PairWriteBatch):
def __init__(self, file):
self._file = open(file.name, "wb")
self.writer = PairBinWriter(FileByteBuffer(self._file))
def put(self, k, v):
self.writer.write(k, v)
def write(self):
pass
def close(self):
self._file.close()
def test_pair_bin(self):
bs = bytearray(32)
buf = ArrayByteBuffer(bs)
writer = PairBinWriter(buf)
for i in range(10):
try:
writer.write(str(i).encode(), str(i).encode())
except IndexError as e:
print(buf.read_bytes(buf.get_offset(), 0))
buf.set_offset(0)
writer = PairBinWriter(buf)
writer.write(str(i).encode(), str(i).encode())
buf.set_offset(0)
reader = PairBinReader(buf)
print("last")
print(list(reader.read_all()))
def test_pair_bin_no_abb(self):
bs = bytearray(32)
buf = ArrayByteBuffer(bs)
writer = PairBinWriter(pair_buffer=buf, data=bs)
for i in range(10):
try:
writer.write(str(i).encode(), str(i).encode())
except IndexError as e:
writer.set_offset(0)
writer = PairBinWriter(pair_buffer=buf, data=bs)
writer.write(str(i).encode(), str(i).encode())
pbr = PairBinReader(pair_buffer=buf, data=writer.get_data())
print(pbr.read_bytes(writer.get_offset(), 0))
writer.set_offset(0)
reader = PairBinReader(pair_buffer=buf, data=bs)
print("last")
print(list(reader.read_all()))
class RollSiteWriteBatch(PairWriteBatch):
grpc_channel_factory = GrpcChannelFactory()
# TODO:0: check if secure channel needed
def __init__(self, adapter: RollSiteAdapter, options: dict = None):
if options is None:
options = {}
self.adapter = adapter
self.roll_site_header: ErRollSiteHeader = adapter.roll_site_header
self.namespace = adapter.namespace
self.name = create_store_name(self.roll_site_header)
self.tagged_key = ''
self.obj_type = adapter.obj_type
self.proxy_endpoint = adapter.proxy_endpoint
channel = self.grpc_channel_factory.create_channel(self.proxy_endpoint)
self.stub = proxy_pb2_grpc.DataTransferServiceStub(channel)
static_er_conf = get_static_er_conf()
self.__bin_packet_len = int(
options.get(
RollSiteConfKeys.EGGROLL_ROLLSITE_ADAPTER_SENDBUF_SIZE.key,
static_er_conf.get(
RollSiteConfKeys.EGGROLL_ROLLSITE_ADAPTER_SENDBUF_SIZE.key,
RollSiteConfKeys.EGGROLL_ROLLSITE_ADAPTER_SENDBUF_SIZE.
default_value)))
self.total_written = 0
self.ba = bytearray(self.__bin_packet_len)
self.buffer = ArrayByteBuffer(self.ba)
self.writer = PairBinWriter(pair_buffer=self.buffer)
self.push_cnt = 0
self.topic_src = proxy_pb2.Topic(
name=self.name,
partyId=self.roll_site_header._src_party_id,
role=self.roll_site_header._src_role,
callback=None)
self.topic_dst = proxy_pb2.Topic(
name=self.name,
partyId=self.roll_site_header._dst_party_id,
role=self.roll_site_header._dst_role,
callback=None)
def __repr__(self):
return f'<ErRollSiteWriteBatch(' \
f'adapter={self.adapter}, ' \
f'roll_site_header={self.roll_site_header}' \
f'namespace={self.namespace}, ' \
f'name={self.name}, ' \
f'obj_type={self.obj_type}, ' \
f'proxy_endpoint={self.proxy_endpoint}) ' \
f'at {hex(id(self))}>'
def generate_message(self, obj, metadata):
data = proxy_pb2.Data(value=obj)
metadata.seq += 1
packet = proxy_pb2.Packet(header=metadata, body=data)
yield packet
# TODO:0: configurable
def push(self, obj):
L.debug(
f'pushing for task: {self.name}, partition id: {self.adapter.partition_id}, push cnt: {self.get_push_count()}'
)
task_info = proxy_pb2.Task(
taskId=self.name,
model=proxy_pb2.Model(name=self.adapter.roll_site_header_string,
dataKey=self.namespace))
command_test = proxy_pb2.Command()
# TODO: conf test as config and use it
conf_test = proxy_pb2.Conf(overallTimeout=200000,
completionWaitTimeout=200000,
packetIntervalTimeout=200000,
maxRetries=10)
metadata = proxy_pb2.Metadata(task=task_info,
src=self.topic_src,
dst=self.topic_dst,
command=command_test,
seq=0,
ack=0)
max_retry_cnt = 100
exception = None
for i in range(1, max_retry_cnt + 1):
try:
self.stub.push(self.generate_message(obj, metadata))
exception = None
self.increase_push_count()
break
except Exception as e:
exception = e
L.info(
f'caught exception in pushing {self.name}, partition_id: {self.adapter.partition_id}: {e}. retrying. current retry count: {i}, max_retry_cnt: {max_retry_cnt}'
)
time.sleep(min(0.1 * i, 30))
if exception:
raise GrpcCallError("error in push", self.proxy_endpoint,
exception)
def write(self):
bin_data = bytes(self.ba[0:self.buffer.get_offset()])
self.push(bin_data)
self.buffer = ArrayByteBuffer(self.ba)
def send_end(self):
L.info(f"send_end tagged_key:{self.tagged_key}")
task_info = proxy_pb2.Task(
taskId=self.name,
model=proxy_pb2.Model(name=self.adapter.roll_site_header_string,
dataKey=self.namespace))
command_test = proxy_pb2.Command(name="set_status")
conf_test = proxy_pb2.Conf(overallTimeout=20000,
completionWaitTimeout=20000,
packetIntervalTimeout=20000,
maxRetries=10)
metadata = proxy_pb2.Metadata(task=task_info,
src=self.topic_src,
dst=self.topic_dst,
command=command_test,
operator="markEnd",
seq=self.get_push_count(),
ack=0)
packet = proxy_pb2.Packet(header=metadata)
try:
# TODO:0: retry and sleep for all grpc call in RollSite
self.stub.unaryCall(packet)
except Exception as e:
raise GrpcCallError('send_end', self.proxy_endpoint, e)
def close(self):
bin_batch = bytes(self.ba[0:self.buffer.get_offset()])
self.push(bin_batch)
self.send_end()
L.info(f'closing RollSiteWriteBatch for name: {self.name}, '
f'total push count: {self.push_cnt}')
def put(self, k, v):
if self.obj_type == 'object':
L.debug(f"set tagged_key: {k}")
self.tagged_key = _serdes.deserialize(k)
try:
self.writer.write(k, v)
except IndexError as e:
bin_batch = bytes(self.ba[0:self.buffer.get_offset()])
self.push(bin_batch)
# TODO:0: replace 1024 with constant
self.ba = bytearray(
max(self.__bin_packet_len,
len(k) + len(v) + 1024))
self.buffer = ArrayByteBuffer(self.ba)
self.writer = PairBinWriter(pair_buffer=self.buffer)
self.writer.write(k, v)
except Exception as e:
L.error(f"Unexpected error: {sys.exc_info()[0]}")
raise e
def increase_push_count(self):
self.push_cnt += 1
def get_push_count(self):
return self.push_cnt
