just want to add little on top. I believe that you have to start set of datanode (start-dfs.sh) before set of trasktracker (start-mapred.sh)
hth p On Tue, Oct 11, 2011 at 9:10 PM, Harsh J <[email protected]> wrote: > Yes, you can do this - the services are not coupled with one another. > > Just start tasktrackers on one set of machines, and datanodes on > another set of machines (via bin/hadoop-daemon.sh start > {tasktracker,datanode} or so, individually.) > > You will lose out on complete data locality during processing, however. > > On Wed, Oct 12, 2011 at 9:07 AM, Xianqing Yu <[email protected]> wrote: > > Hi people, > > > > I have a question about how to setup hadoop cluster. Could I set > TaskTracker and DataNode running on the different machines? Which means one > machine with Tasktracker only, and one machine has DataNode daemon only. > > > > Thanks, > > > > Xianqing > > > > > > -- > Harsh J >
