On 10/24/2011 12:26 PM, oleksiy wrote:
Hello,
As for the first question, I can say that you can understand where is the
master node by looking at "masters" file in the "conf" folder of hadoop.
There you specify master node.
Actually, the "masters" file contains the name of the secondary namenode
(see http://developer.yahoo.com/hadoop/tutorial/module7.html#configs).
You probably want to leave that blank on a two node cluster.
firantika wrote:
Hi All,
i'm newbie on hadoop,
if i installed hadoop on 2 node, where is hdfs running ? on master or
slave node ?
HDFS runs on all nodes. The nameserver runs on the head node (the one
from where you started the HDFS with start-dfs.sh or start-all.sh). The
slave nodes each run a DataNode daemon.
and then if i running sqoop for export dbms to hive, is it give effect on
speed up system between hadoop which running on single node and hadoop
multi node ?
please give me explaining ?
Sorry, don't know.
--
Luca Pireddu
CRS4 - Distributed Computing Group
Loc. Pixina Manna Edificio 1
Pula 09010 (CA), Italy
Tel: +39 0709250452
