設置 pub-sub 庫 http 客戶端超時

Question

我正在嘗試在本地測試一項服務，該服務在啟動時會在 Google Cloud 中創建一些 Pub-Sub 主題。 我正在使用我的個人憑證連接到 Google 的服務（我沒有使用 pub-sub 模擬器）。 但是，用戶憑據似乎在允許的 API 使用量上有很大的限制，而且看起來他們受到了很多限制。 我遇到的問題是，在發送創建主題的請求后，應用程序掛起大約 10 分鍾，並且無法停止（通過在終端中按 Ctrl+C），我必須終止它。

應用程序啟動時彈出的警告是：

Your application has authenticated using end user credentials from Google Cloud SDK. We recommend that most server applications use service accounts instead. If your application continues to use end user credentials from Cloud SDK, you might receive a "quota exceeded" or "API not enabled" error. For more information about service accounts, see https://cloud.google.com/docs/authentication/.

應用程序運行 10 分鍾后，出現以下錯誤，這表明 http 客戶端超時時間很長，Google 的 API 響應時間很長：

Error creating PubSub topic: com.google.api.gax.rpc.UnavailableException: io.grpc.StatusRuntimeException: UNAVAILABLE: Credentials failed to obtain metadata
        at com.google.api.gax.rpc.ApiExceptionFactory.createException(ApiExceptionFactory.java:69)
        at com.google.api.gax.grpc.GrpcApiExceptionFactory.create(GrpcApiExceptionFactory.java:72)
        at com.google.api.gax.grpc.GrpcApiExceptionFactory.create(GrpcApiExceptionFactory.java:60)
        at com.google.api.gax.grpc.GrpcExceptionCallable$ExceptionTransformingFuture.onFailure(GrpcExceptionCallable.java:97)
        at com.google.api.core.ApiFutures$1.onFailure(ApiFutures.java:68)
        at com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1083)
        at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:30)
        at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1174)
        at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:969)
        at com.google.common.util.concurrent.AbstractFuture.setException(AbstractFuture.java:760)
        at io.grpc.stub.ClientCalls$GrpcFuture.setException(ClientCalls.java:563)
        at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:533)
        at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:413)
        at io.grpc.internal.ClientCallImpl.access$500(ClientCallImpl.java:66)
        at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:742)
        at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:721)
        at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
        at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
        at java.base/java.lang.Thread.run(Thread.java:832)
        Suppressed: com.google.api.gax.rpc.AsyncTaskException: Asynchronous task failed
                at com.google.api.gax.rpc.ApiExceptions.callAndTranslateApiException(ApiExceptions.java:57)
                at com.google.api.gax.rpc.UnaryCallable.call(UnaryCallable.java:112)
                at com.google.cloud.pubsub.v1.TopicAdminClient.createTopic(TopicAdminClient.java:284)
                at com.google.cloud.pubsub.v1.TopicAdminClient.createTopic(TopicAdminClient.java:206)
                at com.myapp.integrations.common.pubsub.KenectPubSub.createPubSubTopic(KenectPubSub.java:104)
                at com.myapp.integrations.hub.config.BeanConfiguration_ProducerMethod_getPubSub_8c1027f866ef011e10384d59fcdcf03ffcde3048_ClientProxy.createPubSubTopic(BeanConfiguration_ProducerMethod_getPubSub_8c1027f866ef011e10384d59fcdcf03ffcde3048_ClientProxy.zig:358)
                at com.myapp.integrations.hub.router.IntegrationsRouterImpl.createNewTopic(IntegrationsRouterImpl.java:166)
                at com.myapp.integrations.hub.router.IntegrationsRouterImpl.lambda$init$0(IntegrationsRouterImpl.java:89)
                at java.base/java.lang.Iterable.forEach(Iterable.java:75)
                at com.myapp.integrations.hub.router.IntegrationsRouterImpl.init(IntegrationsRouterImpl.java:82)
                at com.myapp.integrations.hub.router.IntegrationsRouterImpl_Bean.create(IntegrationsRouterImpl_Bean.zig:242)
                at com.myapp.integrations.hub.router.IntegrationsRouterImpl_Bean.create(IntegrationsRouterImpl_Bean.zig:258)
                at io.quarkus.arc.impl.AbstractSharedContext.createInstanceHandle(AbstractSharedContext.java:96)
                at io.quarkus.arc.impl.AbstractSharedContext.access$000(AbstractSharedContext.java:14)
                at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:29)
                at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:26)
                at io.quarkus.arc.impl.LazyValue.get(LazyValue.java:26)
                at io.quarkus.arc.impl.ComputingCache.computeIfAbsent(ComputingCache.java:69)
                at io.quarkus.arc.impl.AbstractSharedContext.get(AbstractSharedContext.java:26)
                at com.myapp.integrations.hub.router.IntegrationsRouterImpl_ClientProxy.arc$delegate(IntegrationsRouterImpl_ClientProxy.zig:92)
                at com.myapp.integrations.hub.router.IntegrationsRouterImpl_ClientProxy.arc_contextualInstance(IntegrationsRouterImpl_ClientProxy.zig:110)
                at com.myapp.integrations.hub.router.IntegrationsRouterImpl_Observer_Synthetic_d70cd75bf32ab6598217b9a64a8473d65e248c05.notify(IntegrationsRouterImpl_Observer_Synthetic_d70cd75bf32ab6598217b9a64a8473d65e248c05.zig:94)
                at io.quarkus.arc.impl.EventImpl$Notifier.notifyObservers(EventImpl.java:282)
                at io.quarkus.arc.impl.EventImpl$Notifier.notify(EventImpl.java:267)
                at io.quarkus.arc.impl.EventImpl.fire(EventImpl.java:69)
                at io.quarkus.arc.runtime.LifecycleEventRunner.fireStartupEvent(LifecycleEventRunner.java:23)
                at io.quarkus.arc.runtime.ArcRecorder.handleLifecycleEvents(ArcRecorder.java:60)
                at io.quarkus.deployment.steps.LifecycleEventsBuildStep$startupEvent-858218658.deploy_0(LifecycleEventsBuildStep$startupEvent-858218658.zig:81)
                at io.quarkus.deployment.steps.LifecycleEventsBuildStep$startupEvent-858218658.deploy(LifecycleEventsBuildStep$startupEvent-858218658.zig:40)
                at io.quarkus.runner.ApplicationImpl.doStart(ApplicationImpl.zig:763)
                at io.quarkus.runtime.Application.start(Application.java:90)
                at io.quarkus.runtime.ApplicationLifecycleManager.run(ApplicationLifecycleManager.java:95)
                at io.quarkus.runtime.Quarkus.run(Quarkus.java:62)
                at io.quarkus.runtime.Quarkus.run(Quarkus.java:38)
                at io.quarkus.runtime.Quarkus.run(Quarkus.java:104)
                at com.myapp.integrations.hub.Main.main(Main.java:9)
                at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
                at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
                at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
                at java.base/java.lang.reflect.Method.invoke(Method.java:564)
                at io.quarkus.runner.bootstrap.StartupActionImpl$3.run(StartupActionImpl.java:134)
                ... 1 more
Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: Credentials failed to obtain metadata
        at io.grpc.Status.asRuntimeException(Status.java:533)
        ... 13 more
Caused by: com.google.api.client.http.HttpResponseException: 400 Bad Request
{
  "error": "invalid_grant",
  "error_description": "Bad Request"
}
        at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1113)
        at com.google.auth.oauth2.UserCredentials.refreshAccessToken(UserCredentials.java:203)
        at com.google.auth.oauth2.OAuth2Credentials.refresh(OAuth2Credentials.java:157)
        at com.google.auth.oauth2.OAuth2Credentials.getRequestMetadata(OAuth2Credentials.java:145)
        at com.google.auth.oauth2.UserCredentials.getRequestMetadata(UserCredentials.java:281)
        at com.google.auth.Credentials.blockingGetToCallback(Credentials.java:112)
        at com.google.auth.Credentials$1.run(Credentials.java:98)
        ... 6 more

我檢查了文檔，沒有說明如何為圖書館的 http 客戶端自定義超時。 有人知道該怎么做嗎？ 我正在使用 google-cloud-pubsub:1.108.3

請注意，這個問題是關於能夠在 http 客戶端中設置超時的。 我知道使用服務帳戶的憑據可以解決問題，但我想知道圖書館是否提供更改 http 客戶端設置的選項。

Answer 1

我沒有在 Cloud Pub/Sub 文檔 [1,2] 的任何地方看到討論的超時設置。 但是，您可以在 java utils 中手動調整 TimeoutException。 這樣，您將能夠捕獲超時異常。 請參閱 [3] 了解如何將超時異常與 awaitTermination 一起使用。

awaitTermination 方法用於“阻塞直到所有工作在關閉請求后執行完畢，或者發生超時，或者當前線程被中斷，以先發生者為准”[4]。 請注意，這通常用於在使用異步訂閱等待消息時延長超時時間。

在 Java 中還有其他選項可以配置單線程超時，但這些選項在 PubSub [5] 上並不常用。 此外，正如您所說，如果這些憑據配置不正確，即使您延長超時時間，請求也不會成功。

[1] - https://cloud.google.com/pubsub/docs/

[2] - https://googleapis.dev/java/google-cloud-pubsub/1.108.3/index.html

[3] - https://cloud.google.com/pubsub/docs/quickstart-client-libraries#receive_messages

[4] - https://googleapis.dev/java/gax/latest/com/google/api/gax/core/BackgroundResource.html#awaitTermination-long-java.util.concurrent.TimeUnit-

[5] - java 中的簡單超時