jonas-tm / kotlin-spring-boot-tracing-example Goto Github PK

Hello! When I run your example, the error timed out after 5000 milliseconds occurs.

What could be the problem?

Openzipkin/zipkin is running and available on port 9411.

org.springframework.web.reactive.function.client.WebClientRequestException: Failed to resolve 'localhost' after 2 queries at org.springframework.web.reactive.function.client.ExchangeFunctions$DefaultExchangeFunction.lambda$wrapException$9(ExchangeFunctions.java:136) ~[spring-webflux-6.0.3.jar:6.0.3] Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: Error has been observed at the following site(s): *__checkpoint ⇢ Request to POST http://localhost:9411/api/v2/spans [DefaultWebClient] Original Stack Trace: at org.springframework.web.reactive.function.client.ExchangeFunctions$DefaultExchangeFunction.lambda$wrapException$9(ExchangeFunctions.java:136) ~[spring-webflux-6.0.3.jar:6.0.3] at reactor.core.publisher.MonoErrorSupplied.subscribe(MonoErrorSupplied.java:55) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.Mono.subscribe(Mono.java:4444) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:103) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxPeek$PeekSubscriber.onError(FluxPeek.java:222) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxPeek$PeekSubscriber.onError(FluxPeek.java:222) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxPeek$PeekSubscriber.onError(FluxPeek.java:222) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.MonoNext$NextSubscriber.onError(MonoNext.java:93) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.MonoFlatMapMany$FlatMapManyMain.onError(MonoFlatMapMany.java:204) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.SerializedSubscriber.onError(SerializedSubscriber.java:124) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.whenError(FluxRetryWhen.java:225) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxRetryWhen$RetryWhenOtherSubscriber.onError(FluxRetryWhen.java:274) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onError(FluxContextWrite.java:121) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.maybeOnError(FluxConcatMapNoPrefetch.java:326) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:211) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:471) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.SinkManyEmitterProcessor$EmitterInner.drainParent(SinkManyEmitterProcessor.java:615) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxPublish$PubSubInner.request(FluxPublish.java:602) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:136) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:336) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:136) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.Operators$DeferredSubscription.request(Operators.java:1717) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:192) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:201) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.netty.http.client.HttpClientConnect$MonoHttpConnect$ClientTransportSubscriber.onError(HttpClientConnect.java:307) ~[reactor-netty-http-1.1.1.jar:1.1.1] at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:201) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.netty.resources.DefaultPooledConnectionProvider$DisposableAcquire.onError(DefaultPooledConnectionProvider.java:162) ~[reactor-netty-core-1.1.1.jar:1.1.1] at reactor.netty.internal.shaded.reactor.pool.AbstractPool$Borrower.fail(AbstractPool.java:475) ~[reactor-netty-core-1.1.1.jar:1.1.1] at reactor.netty.internal.shaded.reactor.pool.SimpleDequePool.lambda$drainLoop$9(SimpleDequePool.java:429) ~[reactor-netty-core-1.1.1.jar:1.1.1] at reactor.core.publisher.FluxDoOnEach$DoOnEachSubscriber.onError(FluxDoOnEach.java:186) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:201) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.netty.resources.DefaultPooledConnectionProvider$PooledConnectionAllocator$PooledConnectionInitializer.onError(DefaultPooledConnectionProvider.java:560) ~[reactor-netty-core-1.1.1.jar:1.1.1] at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondError(MonoFlatMap.java:241) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.MonoFlatMap$FlatMapInner.onError(MonoFlatMap.java:315) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:106) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.Operators.error(Operators.java:198) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.MonoError.subscribe(MonoError.java:53) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.Mono.subscribe(Mono.java:4444) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:103) ~[reactor-core-3.5.1.jar:3.5.1] at reactor.netty.transport.TransportConnector$MonoChannelPromise.tryFailure(TransportConnector.java:587) ~[reactor-netty-core-1.1.1.jar:1.1.1] at reactor.netty.transport.TransportConnector.lambda$doResolveAndConnect$11(TransportConnector.java:394) ~[reactor-netty-core-1.1.1.jar:1.1.1] at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:590) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:557) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:492) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:636) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:629) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.setFailure(DefaultPromise.java:110) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.InetSocketAddressResolver$2.operationComplete(InetSocketAddressResolver.java:86) ~[netty-resolver-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:590) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:583) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:559) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:492) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:636) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:629) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:118) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsResolveContext.finishResolve(DnsResolveContext.java:1055) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsResolveContext.tryToFinishResolve(DnsResolveContext.java:1000) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsResolveContext.query(DnsResolveContext.java:418) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsResolveContext.access$600(DnsResolveContext.java:66) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsResolveContext$2.operationComplete(DnsResolveContext.java:467) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:590) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:583) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:559) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:492) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:636) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:629) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:118) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsQueryContext.tryFailure(DnsQueryContext.java:256) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsQueryContext$4.run(DnsQueryContext.java:208) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:153) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.AbstractEventExecutor.runTask$$$capture(AbstractEventExecutor.java:174) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:167) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:406) ~[netty-transport-classes-epoll-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na] Caused by: java.net.UnknownHostException: Failed to resolve 'localhost' after 2 queries at io.netty.resolver.dns.DnsResolveContext.finishResolve(DnsResolveContext.java:1047) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsResolveContext.tryToFinishResolve(DnsResolveContext.java:1000) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsResolveContext.query(DnsResolveContext.java:418) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsResolveContext.access$600(DnsResolveContext.java:66) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsResolveContext$2.operationComplete(DnsResolveContext.java:467) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:590) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:583) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:559) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:492) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:636) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:629) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:118) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsQueryContext.tryFailure(DnsQueryContext.java:256) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.resolver.dns.DnsQueryContext$4.run(DnsQueryContext.java:208) ~[netty-resolver-dns-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:153) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.AbstractEventExecutor.runTask$$$capture(AbstractEventExecutor.java:174) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:167) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:406) ~[netty-transport-classes-epoll-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.86.Final.jar:4.1.86.Final] at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na] Caused by: io.netty.resolver.dns.DnsNameResolverTimeoutException: [/[0:0:0:0:0:0:0:1]:53] query via UDP timed out after 5000 milliseconds (no stack trace available)

How would you do it if you send a (example: Rabbit) message with Spring Stream instead of HTTP? In my example, Zipkin could see multiple traces, not only one.