我使用apache-flume1.4.0和hbase0.94.10以及hadoop1.1.2。 flume代理将假脱机目录作为源，hbase作为接收器和文件通道。它运行成功但非常慢。我应该怎样做才能提高hbase写入性能。
Flume agent conf如下：
agent1.sources = spool
agent1.channels = fileChannel
agent1.sinks = sink
agent1.sources.spool.type = spooldir
agent1.sources.spool.spoolDir = /opt/spoolTest/
agent1.sources.spool.fileSuffix = .completed
agent1.sources.spool.channels = fileChannel
#agent1.sources.spool.deletePolicy = immediate
agent1.sinks.sink.type = org.apache.flume.sink.hbase.HBaseSink
agent1.sinks.sink.channel = fileChannel
agent1.sinks.sink.table = test
agent1.sinks.sink.columnFamily = log
agent1.sinks.sink.serializer = org.apache.flume.sink.hbase.RegexHbaseEventSerializer
agent1.sinks.sink.serializer.regex = (.*)^C(.*)^C(.*)^C(.*)^C(.*)^C(.*)^C(.*)^C(.*)^C(.*)^C(.*)^C(.*)^C(.*)^C(.*)^C(.*)
agent1.sinks.sink.serializer.colNames = id,no_fill_reason,adInfo,locationInfo,handsetInfo,siteInfo,reportDate,ipaddress,headerContent,userParaContent,reqParaContent,otherPara,others,others1
agent1.sinks.sink1.batchSize = 100
agent1.channels.fileChannel.type = file
agent1.channels.fileChannel.checkpointDir = /usr/flumeFileChannel/chkpointFlume
agent1.channels.fileChannel.dataDirs = /usr/flumeFileChannel/dataFlume
agent1.channels.fileChannel.capacity = 10000000
agent1.channels.fileChannel.transactionCapacity = 100000
文件通道的容量，事务容量和接收器的批量大小应该是什么。
请帮帮我。 提前谢谢。