[2020-01-13T16:12:24,691][WARN ][o.e.t.n.Netty4Transport ] [yq1] send message failed [channel: NettyTcpChannel{localAddress=0.0.0.0/0.0.0.0:9300, remoteAddress=/192.168.251.205:50072}]
java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcherImpl.write0(Native Method) ~[?:?]
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) ~[?:?]
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[?:?]
at sun.nio.ch.IOUtil.write(IOUtil.java:51) ~[?:?]
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) ~[?:?]
at io.netty.channel.socket.nio.NioSocketChannel.doWrite(NioSocketChannel.java:388) ~[netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.AbstractChannel$AbstractUnsafe.flush0(AbstractChannel.java:934) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.forceFlush(AbstractNioChannel.java:368) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:639) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:545) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:499) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459) [netty-transport-4.1.16.Final.jar:4.1.16.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) [netty-common-4.1.16.Final.jar:4.1.16.Final]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112]
發現是netty相關問題，查看程序pom文件中的netty依賴版本如下
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.38.Final</version>
</dependency>
</dependencies>
</dependencyManagement>
錯誤中提示netty版本爲4.1.16.Final，與依賴中版本不一致，
解決辦法 ：把pom文件中依賴註釋掉