xccoder opened a new issue #4134:
URL: https://github.com/apache/incubator-dolphinscheduler/issues/4134


   version:1.3.2 master-server log continue print error log ,bug master server 
start success!
   [ERROR] 2020-12-01 09:25:56.200 
org.apache.dolphinscheduler.remote.handler.NettyServerHandler:[143] - 
exceptionCaught : java.lang.IllegalArgumentException: illegal packet [magic]69
   io.netty.handler.codec.DecoderException: java.lang.IllegalArgumentException: 
illegal packet [magic]69
        at 
io.netty.handler.codec.ReplayingDecoder.callDecode(ReplayingDecoder.java:421)
        at 
io.netty.handler.codec.ReplayingDecoder.channelInputClosed(ReplayingDecoder.java:329)
        at 
io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:372)
        at 
io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:355)
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245)
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231)
        at 
io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:224)
        at 
io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1403)
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:245)
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:231)
        at 
io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:912)
        at 
io.netty.channel.AbstractChannel$AbstractUnsafe$8.run(AbstractChannel.java:826)
        at 
io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)
        at 
io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:495)
        at 
io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:905)
        at java.lang.Thread.run(Thread.java:748)
   Caused by: java.lang.IllegalArgumentException: illegal packet [magic]69
        at 
org.apache.dolphinscheduler.remote.codec.NettyDecoder.checkMagic(NettyDecoder.java:98)
        at 
org.apache.dolphinscheduler.remote.codec.NettyDecoder.decode(NettyDecoder.java:53)


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