The links appeared outdated, I've updated those to reflect the current
release 0.21's configurations. The configuration descriptions describe
properly, the way to set them 'right'.
For 0.20 releases, only the configuration name changes:
dfs.name.dir instead of dfs.namenode.name.dir, and
dfs.data.d
Whew, glad I asked.
It might be useful for someone to update the wiki:
http://wiki.apache.org/hadoop/FAQ#How_do_I_set_up_a_hadoop_node_to_use_multiple_volumes.3F
-Mike
On Thu, Feb 10, 2011 at 12:43 PM, Harsh J wrote:
> DO NOT format your NameNode. Formatting a NameNode is equivalent to
> forma
DO NOT format your NameNode. Formatting a NameNode is equivalent to
formatting a FS -- you're bound lose it all.
And while messing with NameNode, after bringing it down safely, ALWAYS
take a backup of the existing dfs.name.dir contents and preferably the
SNN checkpoint directory contents too (if y
This should be a straightforward question, but better safe than sorry.
I wanted to add a second name node directory (on an NFS as a backup), so now
my hdfs-site.xml contains:
dfs.name.dir
/mnt/hadoop/name
dfs.name.dir
/public/hadoop/name
When I go to start DFS i'm ge
-- Forwarded message --
From: mike anderson
Date: Thu, Feb 10, 2011 at 11:57 AM
Subject: multiple namenode directories
To: core-u...@hadoop.apache.org
This should be a straightforward question, but better safe than sorry.
I wanted to add a second name node directory (on an NFS
