PrematureCloseException : 연결이 너무 일찍 닫혔습니다.

Web-flux / Reactive 및 Webclient를 사용하여 tomcat 및 spring-boot에서 실행합니다.

모든 것이 잘 작동합니다. 나는 그것에 대해 많이 읽었습니다. 문제는, 그렇지 않으면 연결을 닫습니다 당신이 아직 소비하지 않았다, 당신은 로그 메시지의 많은 그 말을 볼 수, 당신은 웹 클라이언트를 사용할 때마다, 당신은 반환하거나 응답을 사용해야 할 것 같다 the connection close prematurely내가이 있다면, 404 상태 코드가 그냥 사용할 수있는 오류 인 시나리오OnStatus예외를 던지지 만 내 시나리오는 업스트림 서비스가 404를 반환하면 수동으로 모노 빈을 반환해야합니다. 그래서 웹 클라이언트 요청의 응답을 사용하지 않고 .exchange ()의 ClientResponse를 사용하여 상태를 확인하고 처리합니다. 내 초기 문제는 로그 메시지입니다. "쓰레기"일 뿐이므로 로그 메시지에서 많은 것을보고 싶지 않습니다. 나는 그것이 발생하면 연결을 다시 사용할 수 없다는 것을 어딘가에서 읽었으므로 정말 나쁘게 들리지만 모르겠습니다 ... 그리고 응답이 200이면 찾을 수 없을 때이 메시지가 나타납니다. 개체를 반환하고 로그 메시지는 인쇄되지 않습니다.

clientResponse.BodyToMono (Void.Class)를 사용하려고했지만 작동하지 않습니다. 유지되는 로그 메시지

 @Bean
  public WebClient webClient(
      @Value("${http.client.connection-timeout-millis}") final int connectionTimeoutMillis,
      @Value("${http.client.socket-timeout-millis}") final int socketTimeoutMillis,
      @Value("${http.client.wire-tap-enabled}") final boolean wireTapEnabled,
      final ObjectMapper objectMapper) {

    Consumer<Connection> doOnConnectedConsumer = connection ->
        connection
            .addHandler(new ReadTimeoutHandler(socketTimeoutMillis, MILLISECONDS))
            .addHandler(new WriteTimeoutHandler(connectionTimeoutMillis, MILLISECONDS));

    TcpClient tcpClient = TcpClient.newConnection()
        .wiretap(wireTapEnabled)
        .option(CONNECT_TIMEOUT_MILLIS, connectionTimeoutMillis)
        .doOnConnected(doOnConnectedConsumer);

    return WebClient.builder()
        .clientConnector(new ReactorClientHttpConnector(HttpClient.from(tcpClient).compress(true)))
        .exchangeStrategies(customExchangeStrategies(objectMapper))
        .build();
  } 

// ..........

    MultiValueMap<String, String> params = getParams(t1, t2);

    return webClient.get()
        .uri(HttpUtils.buildUrl(serviceUrl, params, name))
        .exchange()
        .flatMap(this::handleClientResponse)
        .onErrorMap(Exception.class, ex -> handleUnexpectedEx(ex, name, params));
  }

로그 항목

2019-07-08 11:56:51.972  WARN [-,,,] 1504 --- [ctor-http-nio-3] reactor.netty.channel.FluxReceive        : [id: 0x66c8568c, L:/127.0.0.1:62319 ! R:localhost/127.0.0.1:8990] An exception has been observed post termination

reactor.netty.http.client.PrematureCloseException: Connection prematurely closed DURING response

2019-07-08 11:56:52.013 DEBUG [-,,,] 1504 --- [ctor-http-nio-2] reactor.netty.ReactorNetty               : [id: 0xf50bdf8d, L:/127.0.0.1:62324 ! R:localhost/127.0.0.1:8990] Non Removed handler: ReadTimeoutHandler, context: ChannelHandlerContext(ReadTimeoutHandler, [id: 0xf50bdf8d, L:/127.0.0.1:62324 ! R:localhost/127.0.0.1:8990]), pipeline: DefaultChannelPipeline{(reactor.left.httpCodec = io.netty.handler.codec.http.HttpClientCodec), (reactor.left.decompressor = io.netty.handler.codec.http.HttpContentDecompressor), (WriteTimeoutHandler = io.netty.handler.timeout.WriteTimeoutHandler), (ReadTimeoutHandler = io.netty.handler.timeout.ReadTimeoutHandler), (reactor.right.reactiveBridge = reactor.netty.channel.ChannelOperationsHandler)}
2019-07-08 11:56:52.014 DEBUG [-,,,] 1504 --- [ctor-http-nio-2] reactor.netty.ReactorNetty               : [id: 0xf50bdf8d, L:/127.0.0.1:62324 ! R:localhost/127.0.0.1:8990] Non Removed handler: WriteTimeoutHandler, context: ChannelHandlerContext(WriteTimeoutHandler, [id: 0xf50bdf8d, L:/127.0.0.1:62324 ! R:localhost/127.0.0.1:8990]), pipeline: DefaultChannelPipeline{(reactor.left.httpCodec = io.netty.handler.codec.http.HttpClientCodec), (reactor.left.decompressor = io.netty.handler.codec.http.HttpContentDecompressor), (WriteTimeoutHandler = io.netty.handler.timeout.WriteTimeoutHandler), (ReadTimeoutHandler = io.netty.handler.timeout.ReadTimeoutHandler), (reactor.right.reactiveBridge = reactor.netty.channel.ChannelOperationsHandler)}
2019-07-08 11:56:52.014 DEBUG [-,,,] 1504 --- [ctor-http-nio-2] r.netty.resources.NewConnectionProvider  : [id: 0xf50bdf8d, L:/127.0.0.1:62324 ! R:localhost/127.0.0.1:8990] onStateChange([response_incomplete], GET{uri=/service/TWFDHF?T1=1.0.0&T2=1, connection=SimpleConnection{channel=[id: 0xf50bdf8d, L:/127.0.0.1:62324 ! R:localhost/127.0.0.1:8990]}})
2019-07-08 11:56:52.014  WARN [-,,,] 1504 --- [ctor-http-nio-2] reactor.netty.channel.FluxReceive        : [id: 0xf50bdf8d, L:/127.0.0.1:62324 ! R:localhost/127.0.0.1:8990] An exception has been observed post termination

도청이 활성화 된 로그 항목

2019-07-10 14:51:19.295 DEBUG [-,,,] 2940 --- [ctor-http-nio-2] reactor.netty.tcp.TcpClient              : [id: 0x677da0d4, L:/127.0.0.1:62385 ! R:localhost/127.0.0.1:8990] UNREGISTERED
2019-07-10 14:51:19.541 DEBUG [-,,,] 2940 --- [ctor-http-nio-4] reactor.netty.tcp.TcpClient              : [id: 0xa7f41d1e, L:/127.0.0.1:62384 - R:localhost/127.0.0.1:8990] CLOSE
2019-07-10 14:51:19.542 DEBUG [-,,,] 2940 --- [ctor-http-nio-4] r.n.resources.PooledConnectionProvider   : [id: 0xa7f41d1e, L:/127.0.0.1:62384 ! R:localhost/127.0.0.1:8990] Channel cleaned, now 0 active connections and 9 inactive connections
2019-07-10 14:51:19.542 DEBUG [-,,,] 2940 --- [ctor-http-nio-4] r.n.resources.PooledConnectionProvider   : [id: 0xa7f41d1e, L:/127.0.0.1:62384 ! R:localhost/127.0.0.1:8990] Channel closed, now 0 active connections and 8 inactive connections
2019-07-10 14:51:19.542 DEBUG [-,,,] 2940 --- [ctor-http-nio-4] reactor.netty.ReactorNetty               : [id: 0xa7f41d1e, L:/127.0.0.1:62384 ! R:localhost/127.0.0.1:8990] Non Removed handler: ReadTimeoutHandler, context: ChannelHandlerContext(ReadTimeoutHandler, [id: 0xa7f41d1e, L:/127.0.0.1:62384 ! R:localhost/127.0.0.1:8990]), pipeline: DefaultChannelPipeline{(reactor.left.loggingHandler = io.netty.handler.logging.LoggingHandler), (reactor.left.httpCodec = io.netty.handler.codec.http.HttpClientCodec), (WriteTimeoutHandler = io.netty.handler.timeout.WriteTimeoutHandler), (ReadTimeoutHandler = io.netty.handler.timeout.ReadTimeoutHandler), (reactor.right.reactiveBridge = reactor.netty.channel.ChannelOperationsHandler)}
2019-07-10 14:51:19.543 DEBUG [-,,,] 2940 --- [ctor-http-nio-4] reactor.netty.ReactorNetty               : [id: 0xa7f41d1e, L:/127.0.0.1:62384 ! R:localhost/127.0.0.1:8990] Non Removed handler: WriteTimeoutHandler, context: ChannelHandlerContext(WriteTimeoutHandler, [id: 0xa7f41d1e, L:/127.0.0.1:62384 ! R:localhost/127.0.0.1:8990]), pipeline: DefaultChannelPipeline{(reactor.left.loggingHandler = io.netty.handler.logging.LoggingHandler), (reactor.left.httpCodec = io.netty.handler.codec.http.HttpClientCodec), (WriteTimeoutHandler = io.netty.handler.timeout.WriteTimeoutHandler), (ReadTimeoutHandler = io.netty.handler.timeout.ReadTimeoutHandler), (reactor.right.reactiveBridge = reactor.netty.channel.ChannelOperationsHandler)}
2019-07-10 14:51:19.543 DEBUG [-,,,] 2940 --- [ctor-http-nio-4] reactor.netty.tcp.TcpClient              : [id: 0xa7f41d1e, L:/127.0.0.1:62384 ! R:localhost/127.0.0.1:8990] INACTIVE
2019-07-10 14:51:19.544 DEBUG [-,,,] 2940 --- [ctor-http-nio-4] r.n.resources.PooledConnectionProvider   : [id: 0xa7f41d1e, L:/127.0.0.1:62384 ! R:localhost/127.0.0.1:8990] onStateChange(GET{uri=/dataviews/TWN_EMPLBENINFO_FIXED?version=1.0.0&sequence=1, connection=PooledConnection{channel=[id: 0xa7f41d1e, L:/127.0.0.1:62384 ! R:localhost/127.0.0.1:8990]}}, [response_incomplete])
2019-07-10 14:51:19.544  WARN [-,,,] 2940 --- [ctor-http-nio-4] reactor.netty.channel.FluxReceive        : [id: 0xa7f41d1e, L:/127.0.0.1:62384 ! R:localhost/127.0.0.1:8990] An exception has been observed post termination

그리고 내 핸들러

protected Mono handleClientResponseError(final ClientResponse clientResponse) {
    clientResponse.bodyToMono(Void.class);
    Mono<ErrorResponse> errorResponse = clientResponse.body(BodyExtractors.toMono(ErrorResponse.class));

    return errorResponse.flatMap(err -> {
      log.debug("Received HttpStatusCodeException when calling {} Registry: {}", getGatewayName(),
          err.getErrorEnvelope().getMessage());

      return Mono.error(new UpStreamServiceHttpException(err, clientResponse.rawStatusCode()));
    }).switchIfEmpty(Mono.error(() -> {
      log.debug("Received HttpStatusCodeException when calling {} Registry: {}", getGatewayName());

      return new UpStreamServiceHttpException("Bad Gateway", clientResponse.rawStatusCode());
    }));
  }

이미 사용 clientResponse.bodyToMono(Void.class);하여 응답을 완료 하려고했지만 여전히 작동하지 않습니다. 웹 클라이언트에서 응답을 완료 한 다음 연결 풀을 다시 사용하고 해당 로그 메시지를 제거 할 수있는 방법이 필요합니다.

나는 github에서 문제를 만들었지 만 닫혔으므로 여기서이 질문을 만듭니다. https://github.com/spring-projects/spring-framework/issues/23249