2016-06-09 31 views
1

我正在使用grpc運行一個簡單的python服務器應用程序。這是服務器代碼:GRPC:遠程錯誤和消息中的參數缺失

類分類(grpc_cl.BetaClassifierServicer):

def __init__(self): 
    default_config = self.getDefaultConfig() 
    self.engine_config = default_config["engine"] 
    self.port = default_config["daemon"]["port"] 
    # self.engine = loadLSTM3Model(self.engine_config) 

def getDefaultConfig(self): 
    with open("service.properties.yaml", "r") as stream: 
     default_config = yaml.load(stream) 
    return default_config 

def Analyze(self, request, context): 
    file_name = request.sentences_file 
    print "This is the file to analyze ", file_name 
    error = grpc_cl.Error(error_code = 0, error_message = "OK") 

    return grpc_cl.CategoryReply(error) 

客戶端:

channel = implementations.insecure_channel('localhost', 50051) 
stub = classifier_grpc.beta_create_Classifier_stub(channel) 
reply = stub.Analyze(classifier_grpc.CategoryRequest(user_context=1, sentences_file="file"), 10000) 
print 'Answer', reply.error.error_message 

而且隨着消息的.proto文件:

syntax = "proto3"; 

service Classifier{ 
    rpc Analyze(CategoryRequest) returns (CategoryReply){} 
    rpc Train(TrainRequest) returns (CategoryReply){} 
} 

message CategoryRequest{ 
    int32 user_context = 1; 
    string sentences_file = 2; 
} 
message CategoryReply{ 
    Error error = 1; 
    string categories_file = 2; 
} 
message Error{ 
    int32 error_code = 1; 
    string error_message = 2; 
} 

啓動服務器和客戶端,並將它們連接到相應的端口,給我這個錯誤:

Traceback (most recent call last): 
    File "/home/~/service/client.py", line 19, in <module> 
    reply = stub.Analyze(classifier_grpc.CategoryRequest(user_context=1, sentences_file="file"), 10000) 
    File "/usr/local/lib/python2.7/dist-packages/grpc/framework/crust/implementations.py", line 73, in __call__ 
    protocol_options, metadata, request) 
    File "/usr/local/lib/python2.7/dist-packages/grpc/framework/crust/_calls.py", line 109, in blocking_unary_unary 
    return next(rendezvous) 
    File "/usr/local/lib/python2.7/dist-packages/grpc/framework/crust/_control.py", line 412, in next 
    raise self._termination.abortion_error 
grpc.framework.interfaces.face.face.RemoteError 

現在是否有人爲什麼會發生這種情況?另外,我可以從CategoryRequest中提取user_context,但不能提取句子文件字符串,即空白。

回答

1

grpc.framework.interfaces.face.face.RemoteError表示服務器在處理請求時發生異常。

在你的情況,protobuf的參數需要通過關鍵字指定,即

return grpc_cl.CategoryReply(error)

應該

return grpc_cl.CategoryReply(error=error)

+0

至於失蹤sentences_file,我相信你的打印語句不正確,導致你得出這個結論。 'print「這是要分析的文件{}」format(file_name)'應該可以工作。 – kpayson64