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From "howard chen" <howac...@gmail.com>
Subject Re: Formatting the Namenode
Date Wed, 11 Oct 2006 16:49:02 GMT
On 10/12/06, Doug Cutting <cutting@apache.org> wrote:
> This refers to formatting Hadoop's DFS filesystem, not formatting a
> linux volume.  Hadoop's DFS filesystem in implemented on top the local
> filesystems of your cluster.  Hadoop does not require reformatting of
> linux filesystem volumes.  Formatting a Hadoop DFS filesystem simply
> creates a few files and directories in a configured location on your
> local filesystem (removing any files that already existed there).
>
> Does that make more sense?
>
> Doug
>
> howard chen wrote:
> > hello all,
> >
> > from the page:
> >
> > http://wiki.apache.org/lucene-hadoop/GettingStartedWithHadoop
> >
> > The first step to starting up your Hadoop installation is formatting
> > the file system. You need to do this the first time you set up a
> > Hadoop installation. Do not format a running file system, this will
> > cause all your data to be erased. To format the file system, run the
> > command:
> >
> > i am confused by the instruction there...is that mean
> >
> > 1. I need to make an empty partition for hadoop first, without
> > formatting it?
> >
> > 2. Is that mean haoop will only run on Linux as the file system can't
> > be supported by windows?
> >
> > 3. are there any complete step by step tutorial for newbie?
> >
> > thanks.
>

thanks.

i understood now!

thanks for the good jobs for lucene & hadoop!

also thanks  Mahadev Konar for replying me.

regards,
howard.

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