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Ich benutze Google Pubsub, um Nachrichten von einem abonnierten Thema asynchron zu ziehen.Google Pubsub: Java-Beispiel-Client hängen
ich den folgenden Beispielcode bin mit:
public void startStreaming() {
Subscriber subscriber = null;
try {
SubscriptionName subscription = SubscriptionName.of("topic-test",
"subscription-id-1234");
ExecutorProvider executorProvider =
InstantiatingExecutorProvider.newBuilder()
.setExecutorThreadCount(1)
.build();
MessageReceiver receiver =
new MessageReceiver() {
@Override
public void receiveMessage(PubsubMessage message, AckReplyConsumer consumer) {
try {
String msg = message.getData().toStringUtf8();
System.out.println(msg);
} catch (Exception e) {
throw new RuntimeException("Failed to pull messages from topic");
}
consumer.ack();
}
};
subscriber = Subscriber
.newBuilder(subscription, receiver)
.setExecutorProvider(executorProvider)
.build();
subscriber.addListener(
new Subscriber.Listener() {
@Override
public void failed(Subscriber.State from, Throwable failure) {
// Handle failure. This is called when the Subscriber encountered a fatal error and is shutting down.
logger.error("Subscriber is not able to hook on google pubsub topic", failure);
}
},
MoreExecutors.directExecutor());
subscriber.startAsync().awaitRunning();
// why should I put sleep here??
Thread.sleep(60000);
} catch (Exception e) {
} finally {
if (subscriber != null) {
subscriber.stopAsync().awaitTerminated();
}
}
}
Es funktioniert gut (Nachrichten aufnehmen) für wenige Minuten und ohne weitere Einnahme von Nachrichten stecken, ich bin sicher, dass es Meldungen sind wie ich einmal neu gestartet Der Pull-Client liest Daten normal.
Nov 12, 2017 7:33:17 PM com.google.cloud.pubsub.v1.StreamingSubscriberConnection sendAckOperations
WARNING: failed to send acks
java.lang.IllegalStateException: call was cancelled
at com.google.common.base.Preconditions.checkState(Preconditions.java:444)
at io.grpc.internal.ClientCallImpl.sendMessage(ClientCallImpl.java:405)
at io.grpc.ForwardingClientCall.sendMessage(ForwardingClientCall.java:52)
at io.grpc.ForwardingClientCall.sendMessage(ForwardingClientCall.java:52)
at io.grpc.stub.ClientCalls$CallToStreamObserverAdapter.onNext(ClientCalls.java:286)
at com.google.cloud.pubsub.v1.StreamingSubscriberConnection.sendAckOperations(StreamingSubscriberConnection.java:274)
at com.google.cloud.pubsub.v1.MessageDispatcher.processOutstandingAckOperations(MessageDispatcher.java:602)
at com.google.cloud.pubsub.v1.MessageDispatcher.access$2100(MessageDispatcher.java:56)
at com.google.cloud.pubsub.v1.MessageDispatcher$AckDeadlineAlarm.run(MessageDispatcher.java:529)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Und wenn nicht ExecutorProvider executorProvider verwenden habe ich die unten log
2017-11-12 19:08:43 [grpc-default-worker-ELG-2-3] DEBUG io.grpc.netty.NettyClientHandler [id: 0xdc0e7c4d, L:/10.8.17.4:47347 - R:pubsub.googleapis.com/1.1.1.1:111] OUTBOUND WINDOW_UPDATE: streamId=3 windowSizeIncrement=1048576
2017-11-12 19:08:43 [grpc-default-worker-ELG-2-4] DEBUG io.grpc.netty.NettyClientHandler [id: 0x330498ce, L:/10.8.17.4:47346 - R:pubsub.googleapis.com/1.1.1.1:111] OUTBOUND GO_AWAY: lastStreamId=0 errorCode=0 length=0 bytes=
2017-11-12 19:08:43 [grpc-default-worker-ELG-2-3] DEBUG io.grpc.netty.NettyClientHandler [id: 0xdc0e7c4d, L:/10.8.17.4:47347 - R:pubsub.googleapis.com/1.1.1.1:111] OUTBOUND GO_AWAY: lastStreamId=0 errorCode=0 length=0 bytes=
2017-11-12 19:08:44 [threadDeathWatcher-1-1] DEBUG io.netty.buffer.PoolThreadCache Freed 3 thread-local buffer(s) from thread: threadDeathWatcher-1-1
2017-11-12 19:08:44 [threadDeathWatcher-1-1] DEBUG io.netty.buffer.PoolThreadCache Freed 1 thread-local buffer(s) from thread: threadDeathWatcher-1-1
2017-11-12 19:08:44 [grpc-default-worker-ELG-2-3] DEBUG io.netty.buffer.PoolThreadCache Freed 153 thread-local buffer(s) from thread: grpc-default-worker-ELG-2-3
2017-11-12 19:08:44 [grpc-default-worker-ELG-2-4] DEBUG io.netty.buffer.PoolThreadCache Freed 131 thread-local buffer(s) from thread: grpc-default-worker-ELG-2-4
Könnten Sie bitte helfen?