将flume的source配置为spooldir，sink配置为hdfs就可以实现将本地文件上传到hdfs。但是如果要使文件名不变，需要为source添加a1.sources.r1.basenameHeader = true和a1.sources.r1.basenameHeaderKey = fileName，然后在sink中添加a1.sinks.k1.hdfs.filePrefix = %{fileName}，这样在hdfs中生成的文件名就保留了原始的名字。
完整配置
# Name the components on this agent
a1.sources = r1
a1.sinks = k1
a1.channels = c1
# Describe/configure the source
a1.sources.r1.type = spooldir
a1.sources.r1.spoolDir = /home/flume
a1.sources.r1.basenameHeader = true
a1.sources.r1.basenameHeaderKey = fileName
# Describe the sink
a1.sinks.k1.type = hdfs
a1.sinks.k1.hdfs.path = /flume/events
a1.sinks.k1.hdfs.filePrefix = %{fileName}
# Use a channel which buffers events in memory
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100
# Bind the source and sink to the channel
a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1
