Hi, On Mon, Jul 22, 2013 at 7:26 AM, Yexi Jiang <yexiji...@gmail.com> wrote: > Hi, all, > > I have two simple questions about hadoop 2 (or YARN). > 1. When will the stable version of hadoop 2.x come out?
No fixed date yet, but probably later this year. There is a formal beta that should release soon (2.1.0-beta), which should evolve into a stable version afterwards. > 2. We currently have a cluster deployed with hadoop 1.x, is there any way to > upgrade it to hadoop 2.x without damaging the existing data in current HDFS? Upgrading to 2.x from 1.x is a supported scenario and does not harm your HDFS data. > Thank you very much! > > Regards, > Yexi > > > -- Harsh J
