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la3rence / websocket-cluster

一致性哈希实现有状态应用集群。Scalable spring-cloud project for WebSocket cluster with consistent-hashing algorithm. (inactive)
https://lawrenceli.me/blog/websocket-cluster
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500 Server Error for HTTP GET "/discovery/naming" 接口调用失败 #61

Closed zhoujin7 closed 1 year ago

zhoujin7 commented 1 year ago

500 Server Error for HTTP GET "/discovery/naming" 没用docker, 在windows上直接运行nacos, redis, rabbitmq, 改了一些配置, 注释掉DockerController和DockerService两个类

image

image

image

项目都跑起来了, 这个接口调用失败. 折腾好久了, 之前用docker没搞成功, 才在本地跑的

2023-03-28 06:04:19.152 ERROR 20440 --- [ctor-http-nio-2] a.w.r.e.AbstractErrorWebExceptionHandler : [d929aa23-1]  500 Server Error for HTTP GET "/discovery/naming"

java.lang.NullPointerException: null
    at me.lawrenceli.gateway.discovery.DiscoveryController.getServerStatus(DiscoveryController.java:43) ~[classes/:na]
    Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 
Error has been observed at the following site(s):
    |_ checkpoint ⇢ org.springframework.web.cors.reactive.CorsWebFilter [DefaultWebFilterChain]
    |_ checkpoint ⇢ org.springframework.cloud.gateway.filter.WeightCalculatorWebFilter [DefaultWebFilterChain]
    |_ checkpoint ⇢ HTTP GET "/discovery/naming" [ExceptionHandlingWebHandler]
Stack trace:
        at me.lawrenceli.gateway.discovery.DiscoveryController.getServerStatus(DiscoveryController.java:43) ~[classes/:na]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_333]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_333]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_333]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_333]
        at org.springframework.web.reactive.result.method.InvocableHandlerMethod.lambda$invoke$0(InvocableHandlerMethod.java:148) ~[spring-webflux-5.2.13.RELEASE.jar:5.2.13.RELEASE]
        at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:151) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoFlatMap.subscribeOrReturn(MonoFlatMap.java:53) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:57) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:153) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:67) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:76) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.innerNext(FluxConcatMap.java:274) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:851) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:121) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:173) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2393) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.request(MonoPeekTerminal.java:132) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:162) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2190) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2064) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:90) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onSubscribe(MonoPeekTerminal.java:145) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.Mono.subscribe(Mono.java:4252) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.drain(FluxConcatMap.java:441) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.onSubscribe(FluxConcatMap.java:211) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:161) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:86) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.Mono.subscribe(Mono.java:4252) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:172) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.3.14.RELEASE.jar:3.3.14.RELEASE]
        at reactor.netty.http.server.HttpServerHandle.onStateChange(HttpServerHandle.java:65) ~[reactor-netty-0.9.17.RELEASE.jar:0.9.17.RELEASE]
        at reactor.netty.ReactorNetty$CompositeConnectionObserver.onStateChange(ReactorNetty.java:537) ~[reactor-netty-0.9.17.RELEASE.jar:0.9.17.RELEASE]
        at reactor.netty.tcp.TcpServerBind$ChildObserver.onStateChange(TcpServerBind.java:278) ~[reactor-netty-0.9.17.RELEASE.jar:0.9.17.RELEASE]
        at reactor.netty.http.server.HttpServerOperations.onInboundNext(HttpServerOperations.java:475) ~[reactor-netty-0.9.17.RELEASE.jar:0.9.17.RELEASE]
        at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:96) ~[reactor-netty-0.9.17.RELEASE.jar:0.9.17.RELEASE]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at reactor.netty.http.server.HttpTrafficHandler.channelRead(HttpTrafficHandler.java:191) ~[reactor-netty-0.9.17.RELEASE.jar:0.9.17.RELEASE]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) ~[netty-codec-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) ~[netty-codec-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[netty-transport-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[netty-common-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.59.Final.jar:4.1.59.Final]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.59.Final.jar:4.1.59.Final]
        at java.lang.Thread.run(Thread.java:750) ~[na:1.8.0_333]
zhoujin7 commented 1 year ago

image

la3rence commented 1 year ago

DiscoveryController.java:43

这一行的所有对象都打印看看呢？ 哪个是 Null？

zhoujin7 commented 1 year ago

我怀疑是版本问题 我用的nacos server是最新版. 现在我把spring boot 和cloud, nacos maven版本都升级了 结果一堆爆红