TunnelClient 可能打印出 An exceptionCaught() event was fired, and it reached at the tail of the pipeline

[hengyunabc]

2021-03-02 16:54:18 [arthas-TunnelClient-1-2] WARN  c.a.a.d.i.n.c.DefaultChannelPipeline -An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It u
sually means the last handler in the pipeline did not handle the exception.
com.alibaba.arthas.deps.io.netty.handler.codec.http.websocketx.WebSocketClientHandshakeException: Invalid handshake response getStatus: 502 Bad Gateway
        at com.alibaba.arthas.deps.io.netty.handler.codec.http.websocketx.WebSocketClientHandshaker13.verify(WebSocketClientHandshaker13.java:272)
        at com.alibaba.arthas.deps.io.netty.handler.codec.http.websocketx.WebSocketClientHandshaker.finishHandshake(WebSocketClientHandshaker.java:302)
        at com.alibaba.arthas.deps.io.netty.handler.codec.http.websocketx.WebSocketClientProtocolHandshakeHandler.channelRead(WebSocketClientProtocolHandshakeHandler.java:93)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
        at com.alibaba.arthas.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
        at com.alibaba.arthas.deps.io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)
        at com.alibaba.arthas.deps.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324)
        at com.alibaba.arthas.deps.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
        at com.alibaba.arthas.deps.io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
        at com.alibaba.arthas.deps.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
        at com.alibaba.arthas.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
        at com.alibaba.arthas.deps.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
        at com.alibaba.arthas.deps.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
        at com.alibaba.arthas.deps.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)
        at com.alibaba.arthas.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
        at com.alibaba.arthas.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
        at com.alibaba.arthas.deps.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
        at com.alibaba.arthas.deps.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
        at com.alibaba.arthas.deps.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
        at com.alibaba.arthas.deps.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.lang.Thread.run(Thread.java:748)