Despite its name, the conf/masters file defines on which machines Hadoop
will start secondary NameNodes in multi-node cluster. In some case, this is
just the master machine. The primary NameNode and the JobTracker will
always be the machines on which you run the bin/start-dfs.sh and
bin/start-mapre
My understanding is that conf/masters is used only by the bin/ or sbin/
scripts - like start-*.sh, while the conf property is used by the Hadoop
daemons running on that particular node.
Hope that helps,
Karthik
On Mon, Aug 6, 2012 at 5:32 PM, Momina Khan wrote:
> Hi,
> I am trying to setup a ha
Hi,
I am trying to setup a hadoop cluster and I was wondering what is
difference in specifying the Jobtracker IP in *mapred.job.tracker* in *
mapred-site.xml* and noting the same IP in *conf/masters* file? Do I need
to do both or just one. If I need to do both, is there a difference in how
the two