Flume报错：org.apache.flume.EventDeliveryException: java.lang.NullPointerException: Expected timestamp

场景：flume处理数据到HDFS，文件名如：/data/flume/logs201804160805

代码：sink端

a1.sinks.k1.type=hdfs
a1.sinks.k1.hdfs.path=hdfs://hadoop:9000/data/flume/logs/%Y%m%D%H%M
a1.sinks.k1.hdfs.batchSize=10 
a1.sinks.k1.hdfs.useLocalTimeStamp = true  //在此处添加这个参数报错解决
a1.sinks.k1.hdfs.filePrefix=page-views
a1.sinks.k1.hdfs.fileType= CompressedStream 
a1.sinks.k1.hdfs.writeFormat=Text
a1.sinks.k1.hdfs.codeC=bzip2
a1.sinks.k1.hdfs.round=true
a1.sinks.k1.hdfs.roundValue=1
a1.sinks.k1.hdfs.roundUnit=minute

总结
每个文件的记录，都需要时间戳，该参数调节为使用本地时间

• hdfs.useLocalTimeStamp
  Use the local time (instead of the timestamp from the event header) while replacing the escape sequences.