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Posted to mapreduce-user@hadoop.apache.org by lei liu <li...@gmail.com> on 2013/08/30 08:02:48 UTC
namenode name dir
I use QJM, do I need to config two directories for the
dfs.namenode.name.dir, one local filesystem path and one NFS path?
I think the Stadnby NameNode also store the fsimage, so I think I only
need to config one local file system path.
Thanks,
LiuLei
Re: namenode name dir
Posted by Harsh J <ha...@cloudera.com>.
You are correct - a single directory should suffice. That said, if you
still want multiple copies, you can continue to configure it that way.
On Fri, Aug 30, 2013 at 11:32 AM, lei liu <li...@gmail.com> wrote:
> I use QJM, do I need to config two directories for the
> dfs.namenode.name.dir, one local filesystem path and one NFS path?
>
> I think the Stadnby NameNode also store the fsimage, so I think I only need
> to config one local file system path.
>
>
> Thanks,
>
> LiuLei
--
Harsh J
Re: namenode name dir
Posted by Harsh J <ha...@cloudera.com>.
You are correct - a single directory should suffice. That said, if you
still want multiple copies, you can continue to configure it that way.
On Fri, Aug 30, 2013 at 11:32 AM, lei liu <li...@gmail.com> wrote:
> I use QJM, do I need to config two directories for the
> dfs.namenode.name.dir, one local filesystem path and one NFS path?
>
> I think the Stadnby NameNode also store the fsimage, so I think I only need
> to config one local file system path.
>
>
> Thanks,
>
> LiuLei
--
Harsh J
Re: namenode name dir
Posted by Harsh J <ha...@cloudera.com>.
You are correct - a single directory should suffice. That said, if you
still want multiple copies, you can continue to configure it that way.
On Fri, Aug 30, 2013 at 11:32 AM, lei liu <li...@gmail.com> wrote:
> I use QJM, do I need to config two directories for the
> dfs.namenode.name.dir, one local filesystem path and one NFS path?
>
> I think the Stadnby NameNode also store the fsimage, so I think I only need
> to config one local file system path.
>
>
> Thanks,
>
> LiuLei
--
Harsh J
Re: namenode name dir
Posted by Harsh J <ha...@cloudera.com>.
You are correct - a single directory should suffice. That said, if you
still want multiple copies, you can continue to configure it that way.
On Fri, Aug 30, 2013 at 11:32 AM, lei liu <li...@gmail.com> wrote:
> I use QJM, do I need to config two directories for the
> dfs.namenode.name.dir, one local filesystem path and one NFS path?
>
> I think the Stadnby NameNode also store the fsimage, so I think I only need
> to config one local file system path.
>
>
> Thanks,
>
> LiuLei
--
Harsh J