你好，我这边运行一段时间后，几小时吧，confi下面配置了9个 instance,然后有些instance下面就报下面的日志了，binlog文件变更也拿不到了，经常遇到这种问题，代码里面，是一直获取数据的状态，没哟关闭channal的操作。

2018-05-16 16:07:37.638 [New I/O server worker #1-7] ERROR c.a.otter.canal.server.netty.handler.SessionHandler - something goes wrong with channel:[id: 0x58f255d8, /192.168.47.232:59420 :> /192.16

8.47.243:11111], exception=java.nio.channels.ClosedChannelException

at org.jboss.netty.channel.socket.nio.NioWorker.cleanUpWriteBuffer(NioWorker.java:643)

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:275)

at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:302)

at org.jboss.netty.handler.codec.replay.ReplayingDecoder.unfoldAndFireMessageReceived(ReplayingDecoder.java:525)

at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:506)

at org.jboss.netty.handler.codec.replay.ReplayingDecoder.cleanup(ReplayingDecoder.java:541)

at org.jboss.netty.handler.codec.replay.ReplayingDecoder.channelDisconnected(ReplayingDecoder.java:449)

at org.jboss.netty.channel.Channels.fireChannelDisconnected(Channels.java:360)

at org.jboss.netty.channel.socket.nio.NioWorker.close(NioWorker.java:593)

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:200)

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:275)

at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:302)

at org.jboss.netty.handler.codec.replay.ReplayingDecoder.unfoldAndFireMessageReceived(ReplayingDecoder.java:525)

at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:506)

at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:443)

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:349)

at org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:280)

at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:200)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)

at java.lang.Thread.run(Thread.java:722)