用flume提交文件到hdfs系統，並保持原來的文件名信息的配置方式：
# 配置files_source
# spooling
agent1.sources.files_source.type = spooldir
agent1.sources.files_source.spoolDir = /tmp/flumetest/
agent1.sources.files_source.fileHeader = true
agent1.sources.files_source.fileHeaderKey = fileName
# 配置hdfs_sink
agent1.sinks.hdfs_sink.type = hdfs
agent1.sinks.hdfs_sink.hdfs.path = hdfs://localhost:9000/myflumetestcluster/flume
agent1.sinks.hdfs_sink.fileType = SequenceFile
# agent1.sinks.hdfs_sink.fileType = DataStream #值DataStream表示文件類型，不會被壓縮
# agent1.sinks.hdfs_sink.writeFormat = Text #針對DataStream，使用Text輸出格式
agent1.sinks.hdfs_sink.hdfs.filePrefix = %{fileName} #把原來的文件名作爲前綴