Sometimes cannot login, "WebClientRequestException: Connection reset"

TCC · 28 Apr 2023, 19:13

Trying to login in the client, I get an error message instead of being logged in (error message provided at the end of the message)
I updated the client to the newest version, still had the issue.
It ended working on the 3rd (or 4th?) try.

Elmi reported the same bug here, but in a thread started by a different error message - thus I'm creating this new thread as the cause may differ.

Educated guess: it's due to the ongoing server issues + lack of retry on the client side, right ?

Happy bug hunting (one can dream)

Error message :

Client Version: 2023.3.0
org.springframework.web.reactive.function.client.WebClientRequestException: Connection reset
	at org.springframework.web.reactive.function.client.ExchangeFunctions$DefaultExchangeFunction.lambda$wrapException$9(ExchangeFunctions.java:136)
	Suppressed: The stacktrace has been enhanced by Reactor, refer to additional information below: 
Error has been observed at the following site(s):
	*__checkpoint ⇢ Request to POST https://hydra.faforever.com/oauth2/token [DefaultWebClient]
Original Stack Trace:
		at org.springframework.web.reactive.function.client.ExchangeFunctions$DefaultExchangeFunction.lambda$wrapException$9(ExchangeFunctions.java:136)
		at reactor.core.publisher.MonoErrorSupplied.subscribe(MonoErrorSupplied.java:55)
		at reactor.core.publisher.Mono.subscribe(Mono.java:4485)
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:103)
		at reactor.core.publisher.FluxPeek$PeekSubscriber.onError(FluxPeek.java:222)
		at reactor.core.publisher.FluxPeek$PeekSubscriber.onError(FluxPeek.java:222)
		at reactor.core.publisher.FluxPeek$PeekSubscriber.onError(FluxPeek.java:222)
		at reactor.core.publisher.MonoNext$NextSubscriber.onError(MonoNext.java:93)
		at reactor.core.publisher.MonoFlatMapMany$FlatMapManyMain.onError(MonoFlatMapMany.java:204)
		at reactor.core.publisher.SerializedSubscriber.onError(SerializedSubscriber.java:124)
		at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.whenError(FluxRetryWhen.java:225)
		at reactor.core.publisher.FluxRetryWhen$RetryWhenOtherSubscriber.onError(FluxRetryWhen.java:274)
		at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onError(FluxContextWrite.java:121)
		at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.maybeOnError(FluxConcatMapNoPrefetch.java:326)
		at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:211)
		at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107)
		at reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:471)
		at reactor.core.publisher.SinkManyEmitterProcessor$EmitterInner.drainParent(SinkManyEmitterProcessor.java:615)
		at reactor.core.publisher.FluxPublish$PubSubInner.request(FluxPublish.java:602)
		at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:136)
		at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:336)
		at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:136)
		at reactor.core.publisher.Operators$DeferredSubscription.request(Operators.java:1717)
		at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:192)
		at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:201)
		at reactor.netty.http.client.HttpClientConnect$MonoHttpConnect$ClientTransportSubscriber.onError(HttpClientConnect.java:311)
		at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:201)
		at reactor.netty.resources.NewConnectionProvider$NewConnectionObserver.onUncaughtException(NewConnectionProvider.java:216)
		at reactor.netty.channel.ChannelOperationsHandler.exceptionCaught(ChannelOperationsHandler.java:147)
		at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:346)
		at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:325)
		at io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:317)
		at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireExceptionCaught(CombinedChannelDuplexHandler.java:424)
		at io.netty.channel.ChannelHandlerAdapter.exceptionCaught(ChannelHandlerAdapter.java:92)
		at io.netty.channel.CombinedChannelDuplexHandler$1.fireExceptionCaught(CombinedChannelDuplexHandler.java:145)
		at io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:143)
		at io.netty.channel.CombinedChannelDuplexHandler.exceptionCaught(CombinedChannelDuplexHandler.java:231)
		at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:346)
		at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:325)
		at io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:317)
		at io.netty.handler.ssl.SslHandler.exceptionCaught(SslHandler.java:1114)
		at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:346)
		at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:325)
		at io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:317)
		at io.netty.channel.DefaultChannelPipeline$HeadContext.exceptionCaught(DefaultChannelPipeline.java:1377)
		at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:346)
		at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:325)
		at io.netty.channel.DefaultChannelPipeline.fireExceptionCaught(DefaultChannelPipeline.java:907)
		at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.handleReadException(AbstractNioByteChannel.java:125)
		at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:177)
		at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788)
		at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
		at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
		at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
		at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
		at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
		at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
		at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.net.SocketException: Connection reset
	at java.base/sun.nio.ch.SocketChannelImpl.throwConnectionReset(SocketChannelImpl.java:394)
	at java.base/sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:426)
	at io.netty.buffer.PooledByteBuf.setBytes(PooledByteBuf.java:256)
	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1132)
	at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:357)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:151)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:833)

Brutus5000 · 28 Apr 2023, 20:36

Yes. The server is constantly refusing connection for no obvious reason.