Thanks for the information,
Now I am trying to install hadoop dfs using 2 nodes. A namenode cum datanode,
and a separate data node. I use the following configuration for my hdfs-site.xml
<configuration>
<property>
<name>fs.default.name</name>
<value>localhost:9000</value>
</property>
<property>
<name>dfs.data.dir</name>
<value>/home/bala/data</value>
</property>
<property>
<name>dfs.name.dir</name>
<value>/home/bala/name</value>
</property>
</configuration>
In namenode, I have added the datanode hostnames (machine1 and machine2).
When I do 'start-all.sh', I see the log that the data node is starting in both
the machines but I went to the browser in the namenode, I see only one live
node. (That is the namenode which is configured as datanode)
Any hint here will help me
With regards
Bala
From: Mahesh Balija [mailto:balijamahesh....@gmail.com]
Sent: 05 March 2013 14:15
To: user@hadoop.apache.org
Subject: Re: Hadoop file system
You can be able to use Hdfs alone in the distributed mode to fulfill your
requirement.
Hdfs has the Filesystem java api through which you can interact with the HDFS
from your client.
HDFS is good if you have less number of files with huge size rather than you
having many files with small size.
Best,
Mahesh Balija,
Calsoft Labs.
On Tue, Mar 5, 2013 at 10:43 AM, AMARNATH, Balachandar
<balachandar.amarn...@airbus.com<mailto:balachandar.amarn...@airbus.com>> wrote:
Hi,
I am new to hdfs. In my java application, I need to perform 'similar operation'
over large number of files. I would like to store those files in distributed
machines. I don't think, I will need map reduce paradigm. But however I would
like to use HDFS for file storage and access. Is it possible (or nice idea) to
use HDFS as a stand alone stuff? And, java APIs are available to work with HDFS
so that I can read/write in distributed environment ? Any thoughts here will be
helpful.
With thanks and regards
Balachandar
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