Thank you very much I see
At 2011-06-13 19:23:59，"Joey Echeverria" <j...@cloudera.com> wrote: >This feature doesn't currently work. I don't remember the JIRA for it, but >there's a ticket which will allow a reader to read from an HDFS file before >it's closed. In that case, you implement a queue by having the producer write >to the end of the file and the reader read from the beginning of the file. > >I'm not sure if there will be a way to tell that a file is still being >written, so you may need your own end of stream marker. > >-Joey > >On Jun 13, 2011, at 2:55, ltomuno <ltom...@163.com> wrote: > >> I heard a HDFS file as a producer - consumer queue, a file can be used as a >> queue? I am very confused
