to:ha...@cloudera.com]
> > Sent: dinsdag 20 december 2011 14:30
> > To: common-user@hadoop.apache.org
> > Cc: hdfs-...@hadoop.apache.org
> > Subject: Re: Desperate Expanding,shrinking cluster or replacing
> failed nodes.
> >
> > Hans-Peter,
> >
> > Adding new node
Message-
> From: Harsh J [mailto:ha...@cloudera.com]
> Sent: dinsdag 20 december 2011 14:30
> To: common-user@hadoop.apache.org
> Cc: hdfs-...@hadoop.apache.org
> Subject: Re: Desperate!!!! Expanding,shrinking cluster or replacing failed
> nodes.
>
> Hans-Peter,
>
>
]
Sent: dinsdag 20 december 2011 14:30
To: common-user@hadoop.apache.org
Cc: hdfs-...@hadoop.apache.org
Subject: Re: Desperate Expanding,shrinking cluster or replacing failed
nodes.
Hans-Peter,
Adding new nodes is simply (assuming network setup is sane and done):
- Install/unpack services on new
Hans-Peter,
Adding new nodes is simply (assuming network setup is sane and done):
- Install/unpack services on new machine.
- Deploy a config copy for the services.
- Start the services.
You should *not* format a NameNode *ever*, after the first time you start it
up. Formatting loses all data o
Hi,
Here is quick info in section 1.5 http://wiki.apache.org/hadoop/FAQ
So just briefly - when you add new node, and you are sure configuration on
that one is fine, before you start anything you need to issue "hadoop
dfsadmin -refreshNodes" after what you need to start datanode/mr services.
Hope
Hello all,
I have asked this question a couple of days ago but no one responded.
I built a 6 node hadoop cluster, guided Michael Noll, starting with a single
node and expanding it one by one.
Every time I expanded the cluster I ran into error : java.io.IOException:
Incompatible namespaceIDs
So
