def ReplicateRejectMatch(self, request, context):
key = self.CH.hash(request.recruiter.username)
print(f'ReplicateRejectMatch - Recruiter Server {SERVER_ID} / Username {request.recruiter.username} / Username key: {key}')
node = self.CH.find_successor(key)
if node.server_id != SERVER_ID:
print(f'ReplicateRejectMatch - Redirected to server {node.server_id}')
try:
with grpc.insecure_channel(f'{node.host}:{node.port}') as channel:
stub = API_pb2_grpc.APIStub(channel)
return stub.ReplicateRejectMatch(request)
except Exception as e:
print(e)
else:
print(f'ReplicateRejectMatch - Server {SERVER_ID} executing the action')
empty = API_pb2.Empty()
matches.reject_match(self.LSMT, request, context)
return empty
def ReplicateMessage(self, request, context):
print(f'ReplicateMessage - Server {SERVER_ID} executing the action')
messages.send_message(self.LSMT, request.message, context)
replicated_message = request
nodes = self.CH.get_reachable_nodes()
for node in nodes:
exists = next((x for x in replicated_message.nodes if x.id == str(node.id)), None)
if not exists:
pb_node = replicated_message.nodes.add()
pb_node.id = str(node.id)
pb_node.server_id = node.server_id
try:
with grpc.insecure_channel(f'{node.host}:{node.port}') as channel:
stub = API_pb2_grpc.APIStub(channel)
stub.ReplicateMessage(replicated_message)
except Exception as e:
print(e)
continue
empty = API_pb2.Empty()
return empty
def _stabilize(self):
skip = False
successor = self.finger_table[0]['succ']
if not skip:
with grpc.insecure_channel(f'{successor.host}:{successor.port}') as channel:
stub = API_pb2_grpc.APIStub(channel)
pb_node = stub.GetPredecessor(API_pb2.Empty())
x = Node(pb=pb_node)
# print(f"In stabilize receive predecessor {x.server_id} from successor {successor.server_id}")
if x.id == -1:
skip = True
if not skip:
if x is not None and self._in_interval(x.id, self.node.id, successor.id):
self.finger_table[0]['succ'] = x
self._notify(self.finger_table[0]['succ'])
t = Timer(ConsistentHashing.STABILIZE_TIME, self._stabilize)
t.start()
def Notify(self, request, context):
self.CH.notify(request)
return API_pb2.Empty()