1.0.26最新版本：something goes wrong with channel:*****

今天早上发现 @@@logs/canal目录下的canal.log文件将近200M，一直报如下异常，但是查看每个instance目录下面的meta.log是正常记录消费位点的，说明是正常消费的吧。但是这个异常为什么一直存在？？

2018-05-29 09:48:25.896 [New I/O server worker #1-1] ERROR com.alibaba.otter.canal.server.netty.NettyUtils - ErrotCode:400 , Caused by : something goes wrong with channel:[id: 0x01f1bec3, /127.0.0.1:35010 => /127.0.0.1:11111], exception=com.alibaba.otter.canal.server.exception.CanalServerException: ack error , clientId:1001 batchId:50560 is not exist , please check

2018-05-29 09:48:25.907 [New I/O server worker #1-1] ERROR c.a.otter.canal.server.netty.handler.SessionHandler - something goes wrong with channel:[id: 0x01f1bec3, /127.0.0.1:35010 :> /127.0.0.1:11111], exception=java.nio.channels.ClosedChannelException at org.jboss.netty.channel.socket.nio.NioWorker.cleanUpWriteBuffer(NioWorker.java:649) at org.jboss.netty.channel.socket.nio.NioWorker.writeFromUserCode(NioWorker.java:370) at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.handleAcceptedSocket(NioServerSocketPipelineSink.java:137) at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.eventSunk(NioServerSocketPipelineSink.java:76) at org.jboss.netty.channel.Channels.write(Channels.java:611) at org.jboss.netty.channel.Channels.write(Channels.java:578) at com.alibaba.otter.canal.server.netty.NettyUtils.write(NettyUtils.java:28) at com.alibaba.otter.canal.server.netty.handler.SessionHandler.messageReceived(SessionHandler.java:144) at org.jboss.netty.handler.timeout.IdleStateAwareChannelHandler.handleUpstream(IdleStateAwareChannelHandler.java:48) at org.jboss.netty.handler.timeout.IdleStateHandler.messageReceived(IdleStateHandler.java:276) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:302) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.unfoldAndfireMessageReceived(ReplayingDecoder.java:526) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:507) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.cleanup(ReplayingDecoder.java:542) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.channelDisconnected(ReplayingDecoder.java:450) at org.jboss.netty.channel.Channels.fireChannelDisconnected(Channels.java:360) at org.jboss.netty.channel.socket.nio.NioWorker.close(NioWorker.java:599) at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.handleAcceptedSocket(NioServerSocketPipelineSink.java:119) at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.eventSunk(NioServerSocketPipelineSink.java:76) at org.jboss.netty.channel.Channels.close(Channels.java:720) at org.jboss.netty.channel.AbstractChannel.close(AbstractChannel.java:208) at org.jboss.netty.channel.ChannelFutureListener$1.operationComplete(ChannelFutureListener.java:46) at org.jboss.netty.channel.DefaultChannelFuture.notifyListener(DefaultChannelFuture.java:381) at org.jboss.netty.channel.DefaultChannelFuture.addListener(DefaultChannelFuture.java:148) at com.alibaba.otter.canal.server.netty.NettyUtils.write(NettyUtils.java:30) at com.alibaba.otter.canal.server.netty.NettyUtils.error(NettyUtils.java:51) at com.alibaba.otter.canal.server.netty.handler.SessionHandler.messageReceived(SessionHandler.java:200) at org.jboss.netty.handler.timeout.IdleStateAwareChannelHandler.handleUpstream(IdleStateAwareChannelHandler.java:48) at org.jboss.netty.handler.timeout.IdleStateHandler.messageReceived(IdleStateHandler.java:276) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:302) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.unfoldAndfireMessageReceived(ReplayingDecoder.java:526) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:507) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:444) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:274) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:261) at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:350) at org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:281) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:201) at org.jboss.netty.util.internal.IoWorkerRunnable.run(IoWorkerRunnable.java:46) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)

这是bug吧？

原提问者GitHub用户mjjian0