[kwlug-disc] NFS Setups (was Re: setting up a samba network with no windows systems?)
ldpaniak at fourpisolutions.com
Sun Oct 18 21:15:35 EDT 2009
On Sun, 2009-10-18 at 20:23 -0400, Andrew Kohlsmith (Mailing List
> On October 18, 2009 07:51:16 pm john at netdirect.ca wrote:
> > With UDP your application has to make sure all is well. With TCP the
> > operating system does so. Programmers would choose TCP and it's generic
> > error checking/recovery for ease of use, or choose UDP so they can define
> > an error checking/recovery method that works best for the application.
> That is fine and all, but it doesn't answer the question. :-)
> Do the NFS server and client ensure reliable communication, or is it all "best
> effort" when using UDP with NFS?
This note on NFS performance tuning is probably out of date with V4 on
the horizon, but it might just render the question of UDP vs TCP for NFS
In short, they claim the difference in performance is only noticeable
with careful measurement. One important feature of TCP: flow control.
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