JAVA AWS機器學習API支持實時預測

Question

有人可以幫助我提供實時預測模型的api名稱。請注意，我沒有請求RealtimeEndpointRequest對象。我已經瀏覽了AWS Machine Learning SDK的整個文檔，但沒有發現任何內容。

編輯1： 這是我使用的代碼 -

 CreateRealTimePrediction createRealTimePrediction ; 
     CreateRealtimeEndpointRequest createRealtimeEndPointReq; 
     CreateRealtimeEndpointResult createRealtimeEndPointRes; 
     PredictRequest predReq; 
     String mlModelId="ml-Lkqmcs8cM2W"; 
     createRealtimeEndPointReq.setMLModelId(mlModelId); 
     PredictResult predRes = null; 
     Map<String,String> record=null; 
     // assume i have set a record in the Map. 
     createRealtimeEndPointRes = amlClient.createRealtimeEndpoint(createRealtimeEndPointReq); 
     String predictEndpoint=createRealtimeEndPointRes.getRealtimeEndpointInfo().getEndpointUrl(); 

     predReq= new PredictRequest(); 
     predReq.setMLModelId(mlModelId); 
     for (int i=0;i<recordKeys.length;i++){ 
      record.put(recordKeys[i],recordValues[i]); 
     } 
     predReq.setRecord(record); 
     predReq.setPredictEndpoint(predictEndpoint); 
     predRes=amlClient.predict(predReq); 
     return predRes;  
    } 

現在正在發生的事情是 - 如果我通過手動使用AWS管理控制檯啓用實時預測，然後運行該段的代碼，然後將結果產生如預期，但是當我實時預測被禁止，則我得到這個錯誤 -

Exception in thread "main" com.amazonaws.services.machinelearning.model.PredictorNotMountedException: Either ML Model with id ml-Lkqmcs8 
cM2W is not enabled for real-time predictions or the MLModelId is invalid. (Service: AmazonMachineLearning; Status Code: 400; Error Code 
: PredictorNotMountedException; Request ID: 2dc70e58-07d0-11e5-a0c7-bb93f17d1b2e) 
     at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:1160) 
     at com.amazonaws.http.AmazonHttpClient.executeOneRequest(AmazonHttpClient.java:748) 
     at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:467) 
     at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:302) 
     at com.amazonaws.services.machinelearning.AmazonMachineLearningClient.invoke(AmazonMachineLearningClient.java:1995) 
     at com.amazonaws.services.machinelearning.AmazonMachineLearningClient.predict(AmazonMachineLearningClient.java:637) 
     at com.nrift.aml.prediction.realtime.CreateRealTimePrediction.createRealTimePrediction(CreateRealTimePrediction.java:61) 
     at RealTimePrediction.main(RealTimePrediction.java:53) 

這實際上意味着這個代碼段是不啓用實時預測，雖然我已經使用

CreateRealtimeEndpoint 

api在裏面。

P.s-我發佈的代碼段是不完整的，完整的代碼工作正常，因此您可以對代碼的正確性做出假設。

Answer 1

您正在查找的API是CreateRealtimeEndpoint。創建實時端點是使模型能夠用於實時預測的機制。當您不再需要使用此模型時，可以使用DeleteRealtimeEndpoint API銷燬端點。該模型始終保持不變，因此您可以在需要時創建/刪除端點。