Quick performance question

[Rob Hasselbaum]

If you add the host name to /etc/hosts and point it to 127.0.0.1, traffic
will stay local.


On Fri, Aug 6, 2010 at 2:01 PM, Jerry Feldman <gaf-mNDKBlG2WHs at public.gmane.org> wrote:

> Currently I am using a RHEL 5.2 server to export a number of files via
> NFS. Simple. On the other servers, I use autofs to mount the
> directories. In preparation for moving the directories (about 800GB) to
> a dedicated NFS server, what I plan to do is:
> (1) rename the /mnts directory to /exports. This should have been done
> when I set up the server a few years ago. (The reason for the /mnts name
> is that I need to mirror Toronto.
>
> (2) then I want to mount the directories in /exports onto
> localalhost:/mnts. But, I want to use the same auto.mnts file on the nfs
> server that I do on the other 7 systems. So I can use the line:
> *          -fstype=nfs,rw,nosuid,soft      <nfs server name>:/exports/&
>
> I certainly can use
> *          -fstype=nfs,rw,nosuid,soft      localhost:/exports/&
>
> Is the Linux kernel smart enough to recognize that <nfs server name> is
> really the local host, and not send the bits out to the interface. I'm
> almost certain that the bits never go out on the network, but I just
> want to confirm it.
>
> --
> Jerry Feldman <gaf-mNDKBlG2WHs at public.gmane.org>
> Boston Linux and Unix
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>
>
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