Where did you run the 'hadoop fs -ls' command ? Looks like hadoop version of that hadoop command is older than Hadoop 2.6.0
Cheers On Tue, Dec 16, 2014 at 12:17 PM, Dan Dong <[email protected]> wrote: > > Hi, > When I run hadoop fs -ls(or other hadoop commands) on my Hadoop 2.6.0, I > got the following: > > ls: Server IPC version 9 cannot communicate with client version 4 > > What does this mean? What Server and what client? Did not find any error > messages in the log files. Thanks. > > Cheers, > Dan >
