GCP java SDK在20秒后抛出套接字连接超时

Posted 2023-03-29

【中文标题】GCP java SDK在20秒后抛出套接字连接超时

【英文标题】：GCP java SDK throwing socket connection timeout after 20seconds

【发布时间】：2022-01-18 08:30:30

【问题描述】：

目前在我的 POC 中，我正在尝试使用 java SDK 获取 gcp 项目的列表，但是当我在 20 秒后执行 API 时得到“java.net.SocketTimeoutException: connect timed out”

注意：在我的代码中，我已经将 setConnectTimeout 值设置为 3 分钟。

这是我的代码 sn-p：

 

HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();
  JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();
  GoogleCredential credential = GoogleCredential.fromStream(
      new ByteArrayInputStream(credentials.getBytes(Charset.forName("UTF-8"))));
  if (credential.createScopedRequired()) 
    credential = credential.createScoped(
        Arrays.asList("https://www.googleapis.com/auth/cloud-platform"));
  


CloudResourceManager cloudResourceManager= new CloudResourceManager.Builder(new NetHttpTransport(), jsonFactory,
      setHttpTimeout(credential)).setApplicationName("Google-CloudResourceManagerSample/0.1").build();
 List<Project> projects = cloudResourceManager.projects().list().execute().getProjects();

private static HttpRequestInitializer setHttpTimeout(final HttpRequestInitializer requestInitializer) 
return httpRequest -> 
  requestInitializer.initialize(httpRequest);
  httpRequest.setConnectTimeout(3 * 60000)// 3 minutes connect timeout
      .setReadTimeout(3 * 60000);  // 3 minutes read timeout
;

错误跟踪：

 java.net.SocketTimeoutException: connect timed out
 at java.net.PlainSocketImpl.socketConnect(Native Method)
 at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
 at 
 java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
 at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
 at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
 at java.net.Socket.connect(Socket.java:607)
 at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:681)
 at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
 at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
 at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
 at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)

你能帮我解决一下吗？

【参考方案1】：

根据documentation 使用下面的代码 sn-p

    private static HttpRequestInitializer setHttpTimeout(final HttpRequestInitializer requestInitializer) 
      return new HttpRequestInitializer() 
        @Override
        public void initialize(HttpRequest httpRequest) throws IOException 
          requestInitializer.initialize(httpRequest);
          httpRequest.setConnectTimeout(3 * 60000);  // 3 minutes connect timeout
          httpRequest.setReadTimeout(3 * 60000);  // 3 minutes read timeout
        ;

public static Analytics initializeAnalytics() throws Exception 
    // Initializes an authorized analytics service object.

    // Construct a GoogleCredential object with the service account email
    // and p12 file downloaded from the developer console.
    HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();
    GoogleCredential credential = new GoogleCredential.Builder()
        .setTransport(httpTransport)
        .setJsonFactory(JSON_FACTORY)
        .setServiceAccountId(SERVICE_ACCOUNT_EMAIL)
        .setServiceAccountPrivateKeyFromP12File(new File(KEY_FILE_LOCATION))
        .setServiceAccountScopes(AnalyticsScopes.all())
        .build();

    // Construct the Analytics service object.
    return new Analytics.Builder(httpTransport, JSON_FACTORY,setHttpTimeout(credential))
        .setApplicationName(APPLICATION_NAME).build();

也可以参考堆栈溢出链接link1，link2了解更多详情

【讨论】：

感谢重播，我有 json 文件作为凭据，但上述程序期望 P12 文件作为输入。您在我的示例代码中看到任何错误吗？我的 dobut 就是为什么它没有采用我配置的值（setconnectiontimeout 值）

看来你的 setReadTimeout 是错误的，应该是httpRequest.setReadTimeout(3 * 60000);。可以换一个试试吗？

我之前也尝试过，但结果没有变化。 java支持方法链，所以应该没什么区别。

httpRequest.setConnectTimeout(3); // 3 分钟连接超时 httpRequest.setReadTimeout(3); // 3分钟读超时试试

***.com/questions/31312692/… 参考这个链接也会很有帮助