: Multiple DataNodes on a single machine .
Ist works fine 2 datanodes are up and running .
So i have 2 conf Folders conf and conf2 in hadoop-home .
If i have to set dfs.replication value to 3 - in which hdfs-site.xml
should i set ?
should it be hdfs-site.xml in conf or conf2 .
what should
Hello friends ,
i set up 2 datanodes on a single machine accordingly mentioned in the
thread
RE: Multiple DataNodes on a single machine .
Ist works fine 2 datanodes are up and running .
So i have 2 conf Folders conf and conf2 in hadoop-home .
If i have to set dfs.replication value to 3
to me, the notion of replication is to provide a failsafe mechanism in case
some nodes go down, hence running two datanode on a single host does not
serve this basic purpose. As already mentioned you can run two data nodes
using two instanced of hadoop with different ports. In case you do not want
.
Cheers Arv
-Original Message-
From: Matthew Foley [mailto:ma...@yahoo-inc.com]
Sent: September 15, 2010 8:45 PM
To: common-user@hadoop.apache.org
Cc: Matthew Foley
Subject: Re: Multiple DataNodes on a single machine
Hello Arv,
It is possible to run multiple datanodes on a single machine
Hi, Arv,
Actually, several days ago, I deployed a system which is similar with your
requirements
In our cluster environment, since I have to run modified hadoop, we invoked
two namenodes, two jobtrackers, two trackers on each node, and as you
mentioned, two datanodes in single host,
What you
On 09/15/2010 11:50 AM, Arv Mistry wrote:
Hi,
Is it possible to run multiple data nodes on a single machine? I
currently have a machine with multiple disks and enough disk capacity
for replication across them. I don't need redundancy at the machine
level but would like to be able to handle a
Hello Arv,
It is possible to run multiple datanodes on a single machine, and this can be
useful for small-scale test scenarios. Also you mentioned in your previous
message that you have a Hadoop implementation with only one physical datanode
server and want to replicate within it, between
