dubbo 版本 3.2.4

实验过程：服务端关闭网络，节点在15min内不会从nacos平台消失。导致consumer仍然能够拿到invoder，此时客户端如果能判断服务端invoker不能连接，就会从全局的invoker列表中剔除该invoker，执行故障转移。但是dubbo consumer 在服务端突然断网后，判断连接仍然存在，导致无法剔除invoker，无法进行故障转移。

问题：针对服务端突然断电、断网，是否是应为tcp链接无法正常断开，导致consumer判断连接失效？



<img width="916" alt="image" src="https://github.com/apache/dubbo/assets/139483558/38486a89-695a-4792-83a6-51f783f5abf2">

config.getInt(H2_SETTINGS_HEADER_TABLE_SIZE_KEY, DEFAULT_SETTING_HEADER_LIST_SIZE))
                .maxConcurrentStreams(
                    config.getInt(H2_SETTINGS_MAX_CONCURRENT_STREAMS_KEY, Integer.MAX_VALUE))
                .initialWindowSize(
                    config.getInt(H2_SETTINGS_INITIAL_WINDOW_SIZE_KEY, DEFAULT_WINDOW_INIT_SIZE))
                .maxFrameSize(config.getInt(H2_SETTINGS_MAX_FRAME_SIZE_KEY, DEFAULT_MAX_FRAME_SIZE))
                .maxHeaderListSize(config.getInt(H2_SETTINGS_MAX_HEADER_LIST_SIZE_KEY,
                    DEFAULT_MAX_HEADER_LIST_SIZE)))
            .frameLogger(SERVER_LOGGER)
            .build();
        ExecutorSupport executorSupport = ExecutorRepository.getInstance(url.getOrDefaultApplicationModel()).getExecutorSupport(url);
        codec.connection().local().flowController().frameWriter(codec.encoder().frameWriter());
        TripleWriteQueue writeQueue = new TripleWriteQueue();
        final Http2MultiplexHandler handler = new Http2MultiplexHandler(
            new ChannelInitializer<Http2StreamChannel>() {
                @Override
                protected void initChannel(Http2StreamChannel ch) {
                    final ChannelPipeline p = ch.pipeline();
                    p.addLast(new TripleCommandOutBoundHandler());
                    p.addLast(new TripleHttp2FrameServerHandler(frameworkModel, executorSupport,
                        headFilters, ch, writeQueue));
                }
            });
        List<ChannelHandler> handlers = new ArrayList<>();
        handlers.add(new ChannelHandlerPretender(codec));
        handlers.add(new ChannelHandlerPretender(new FlushConsolidationHandler(64, true)));
        handlers.add(new ChannelHandlerPretender(new TripleServerConnectionHandler()));
        handlers.add(new ChannelHandlerPretender(handler));
        handlers.add(new ChannelHandlerPretender(new TripleTailHandler()));
        operator.configChannelHandler(handlers);