File_roll sink

必须的：type = file_roll

sink.directory 保存在那个目录 

非必须：sink.rollInterval = 30 就是每过30s就会生成一个新的文件用来存储数据

a1.sources = r1
a1.channels = c1
a1.sinks = k1

a1.sources.r1.type = netcat
a1.sources.r1.bind = master
a1.sources.r1.port = 44444

a1.channels.c1.type = memory
a1.channels.c1.capacity = 10000
a1.channels.c1.transactionCapacity = 100

a1.sinks.k1.type = file_roll

a1.sinks.k1.sink.directory = /root/file_roll 

a1.sinks.k1.sink.rollInterval = 10

a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1