you have to build spark against the version of hadoop your are using
On Wed, Jun 4, 2014 at 10:25 PM, bluejoe2008 <bluejoe2...@gmail.com> wrote: > hi, all > when my spark program accessed hdfs files > an error happened: > > Exception in thread "main" org.apache.hadoop.ipc.RemoteException: Server IPC > version 9 cannot communicate with client version 4 > > > it seems the client was trying to connect hadoop2 via an old hadoop > protocol > > so my question is: > how to specify the version of hadoop on connection? > > thank you! > > bluejoe > > 2014-06-05 > ------------------------------ > >