我正在尝试将flume与kafka集成，我想将一个文件从本地计算机传递到flume，然后再传递到kafka。我想看看Kafka消费者中我文件的内容。
这是我在flume中的配置文件：

# example.conf: A single-node Flume configuration

 # Name the components on this agent
 a1.sources = r1
 a1.sinks = k1
 a1.channels = c1

 # Describe/configure the source
 a1.sources.r1.type = exec
 a1.sources.r1.command = cat /Users/myname/Downloads/file.txt

 # Describe the sink
 #a1.sinks.k1.type = logger
  a1.sinks.k1.type         = org.apache.flume.sink.kafka.KafkaSink
  a1.sinks.k1.topic = k1
  a1.sinks.k1.brokerList = kafkagames-1:9092,kafkagames-2:9092
  a1.sinks.sink1.batchSize = 20

  # Use a channel which buffers events in memory
  a1.channels.c1.type = memory
  a1.channels.c1.capacity = 10000
  a1.channels.c1.transactionCapacity = 10000

  # Bind the source and sink to the channel
  a1.sources.r1.channels = c1
  a1.sinks.k1.channel = c1

我不知道如何从flume启动kafka，并在kafka consumer中看到file.txt的内容。请给我建议。谢谢。