GooglePubSub:拉java示例客户端挂起
我正在使用GooglePubSub异步从订阅的主题中提取消息 我正在使用以下示例代码:GooglePubSub:拉java示例客户端挂起,java,google-cloud-messaging,google-cloud-pubsub,Java,Google Cloud Messaging,Google Cloud Pubsub,我正在使用GooglePubSub异步从订阅的主题中提取消息 我正在使用以下示例代码: public void startStreaming() { Subscriber subscriber = null; try { SubscriptionName subscription = SubscriptionName.of("topic-test", "subscription-id-1234"
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();
}
}
}
它可以正常工作(接收消息)几分钟,并且不再接收消息,我确信会有消息,因为一旦我重新启动拉客户机,它就会正常读取数据
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)
当不使用ExecutorProvider ExecutorProvider时,我得到以下日志
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
您能帮忙吗?它现在工作正常,正在移除下面的
lines,
// if (subscriber != null) {
// subscriber.stopAsync().awaitTerminated();
// }
解释如下,这里是github
这真的很有意义,缺少的是谷歌云文档中的更多文档提供了更多细节,比如github线程中提供的评论
编辑:
创建Github票证是为了添加更多文档,并在下面关闭:
它现在工作正常,是为了移除下面的
lines,
// if (subscriber != null) {
// subscriber.stopAsync().awaitTerminated();
// }
解释如下,这里是github
这真的很有意义,缺少的是谷歌云文档中的更多文档提供了更多细节,比如github线程中提供的评论
编辑:
创建Github票证是为了添加更多文档,并在下面关闭: