title: flume hdfs rollSize not working in multi channels and multi sinks
body: <p>I am trying to use Flume-ng to grab 128MB of log information and put it into a file in HDFS. But HDFS rolling options not working. Flume-ng send log file per seconds. How can I fix flume.conf file?</p>
  
  <pre><code>agent01.sources = avroGenSrc
  agent01.channels = memoryChannel hdfsChannel
  agent01.sinks = fileSink hadoopSink
  
  # For each one of the sources, the type is defined
  agent01.sources.avroGenSrc.type = avro
  agent01.sources.avroGenSrc.bind = dev-hadoop03.ncl
  agent01.sources.avroGenSrc.port = 3333
  
  # The channel can be defined as follows.
  agent01.sources.avroGenSrc.channels = memoryChannel hdfsChannel
  
  # Each sink's type must be defined
  agent01.sinks.fileSink.type = file_roll
  agent01.sinks.fileSink.sink.directory = /home1/irteam/flume/data
  agent01.sinks.fileSink.sink.rollInterval = 3600
  agent01.sinks.fileSink.sink.batchSize = 100
  
  #Specify the channel the sink should use
  agent01.sinks.fileSink.channel = memoryChannel
  
  
  
  agent01.sinks.hadoopSink.type = hdfs
  agent01.sinks.hadoopSink.hdfs.useLocalTimeStamp = true
  agent01.sinks.hadoopSink.hdfs.path = hdfs://dev-hadoop04.ncl:9000/user/hive/warehouse/raw_logs/year=%Y/month=%m/day=%d
  agent01.sinks.hadoopSink.hdfs.filePrefix = AccessLog.%Y-%m-%d.%Hh
  agent01.sinks.hadoopSink.hdfs.fileType = DataStream
  agent01.sinks.hadoopSink.hdfs.writeFormat = Text
  agent01.sinks.hadoopSink.hdfs.rollInterval = 0
  agent01.sinks.hadoopSink.hdfs.rollSize = 134217728
  agent01.sinks.hadoopSink.hdfs.rollCount = 0
  
  #Specify the channel the sink should use
  agent01.sinks.hadoopSink.channel = hdfsChannel
  
  
  # Each channel's type is defined.
  agent01.channels.memoryChannel.type = memory
  agent01.channels.hdfsChannel.type = memory
  
  # Other config values specific to each type of channel(sink or source)
  # can be defined as well
  # In this case, it specifies the capacity of the memory channel
  agent01.channels.memoryChannel.capacity = 100000
  agent01.channels.memoryChannel.transactionCapacity = 10000
  
  agent01.channels.hdfsChannel.capacity = 100000
  agent01.channels.hdfsChannel.transactionCapacity = 10000
  </code></pre>