Flume ng Flume代理未接收数据但无错误

我的水槽有问题。我正试图进入大数据领域，因此我正在学习《傻瓜书》中的教程。到目前为止，其他东西或多或少都起了作用，但flume代理存在一些问题

这是我正在使用的教程

当我按照教程进行所有操作时，我的终端输出如下所示：

16/02/05 17:19:33 INFO conf.FlumeConfiguration: Post-validation flume configuration contains configuration for agents: [shaman]

16/02/05 17:19:33 INFO node.AbstractConfigurationProvider: Creating channels

16/02/05 17:19:33 INFO channel.DefaultChannelFactory: Creating instance of channel in-mem_c1 type memory

16/02/05 17:19:33 INFO node.AbstractConfigurationProvider: Created channel in-mem_c1

16/02/05 17:19:33 INFO source.DefaultSourceFactory: Creating instance of source netcat_s1, type netcat

16/02/05 17:19:33 INFO node.AbstractConfigurationProvider: Channel in-mem_c1 connected to [netcat_s1]

16/02/05 17:19:33 INFO node.Application: Starting new configuration:{ sourceRunners:{netcat_s1=EventDrivenSourceRunner: { source:org.apache.flume.source.NetcatSource{name:netcat_s1,state:IDLE} }} sinkRunners:{} channels:{in-mem_c1=org.apache.flume.channel.MemoryChannel{name: in-mem_c1}} }

16/02/05 17:19:33 INFO node.Application: Starting Channel in-mem_c1

16/02/05 17:19:34 INFO instrumentation.MonitoredCounterGroup: Monitored counter group for type: CHANNEL, name: in-mem_c1: Successfully registered new MBean.

16/02/05 17:19:34 INFO instrumentation.MonitoredCounterGroup: Component type: CHANNEL, name: in-mem_c1 started

16/02/05 17:19:34 INFO node.Application: Starting Source netcat_s1

16/02/05 17:19:34 INFO source.NetcatSource: Source starting

16/02/05 17:19:34 INFO source.NetcatSource: Created 
serverSocket:sun.nio.ch.ServerSocketChannelImpl[/127.0.0.1:44444]

从那以后，它再也不会做任何事情了。在我关闭终端之前，它会一直这样

我已尝试通过telnet与代理联系，但消息不会显示

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知道发生了什么吗？

在教程中，它将数据放在HDFS中，请检查您的HDFS目录