def Read(self, request, context):
if DEBUG:
print("Requesting Datanode.Read")
dn = Datanode(self.port)
data = dn.read(request.blockname, request.timestamp)
if DEBUG:
print("\t Datanode.Read completed successfully! ")
return datanode_pb2.ReadReply(data=data, success=True)
def Read(self, request, context):
if DEBUG:
print("Requesting Datanode.Read")
dn = Datanode(self.port)
data = dn.read(request.blockname, request.timestamp)
if DEBUG:
print("\t Datanode.Read completed successfully! ")
return datanode_pb2.ReadReply(data=data, success=True)
def Store(self, request, context):
if DEBUG:
print("Requesting DataNode.Store")
dn = Datanode(self.port)
dn.write(request.blockname, request.timestamp, request.data)
if DEBUG:
print("\tDataNode.Store completed successfully!")
return datanode_pb2.StoreReply(success=True)
def Store(self, request, context):
if DEBUG:
print("Requesting DataNode.Store")
dn = Datanode(self.port)
dn.write(request.blockname, request.timestamp, request.data)
if DEBUG:
print("\tDataNode.Store completed successfully!")
return datanode_pb2.StoreReply(success=True)
def __init__(self, datanode): Thread.__init__(self) self.datanode = datanode processor = Datanode.Processor(self.datanode) transport = TSocket.TServerSocket(port=DATANODE_PORT) tfactory = TTransport.TBufferedTransportFactory() pfactory = TBinaryProtocol.TBinaryProtocolFactory() #self.server = TServer.TSimpleServer(processor, transport, tfactory, pfactory) self.server = TServer.TThreadPoolServer(processor, transport, tfactory, pfactory)
def __init__(self, host, port=DATANODE_PORT, timeout=TIMEOUT):
# Make socket
self.socket = TSocket.TSocket(host, port)
self.socket.setTimeout(timeout)
# Buffering is critical. Raw sockets are very slow
self.transport = TTransport.TBufferedTransport(self.socket)
# Wrap in a protocol
self.protocol = TBinaryProtocol.TBinaryProtocol(self.transport)
# Create a client to use the protocol encoder
self.client = Datanode.Client(self.protocol)
# Connect!
self.transport.open()
