Why no rlogin to nodes?

Judd Tracy jtracy at ist.ucf.edu
Tue Dec 12 17:39:36 EST 2000


Is there a reason that you don't use ntp?  The program that you wrote will
setup the time on boot, but if you cluster is running for weeks or months
your clock could drift significantly on the nodes.

On Tue, 12 Dec 2000, Daniel Ridge wrote:

> 
> On Tue, 12 Dec 2000, Jag wrote:
> 
> > On Thu, 12 Oct 2000, Daniel Ridge wrote:
> 
> > I noticed that when you install Scyld Beowulf, that while the slave
> > nodes don't run much, it looks like every service possible was turned on
> > for the head node, from finger, telnet, lpd, smtp, ntalk, even apache's
> > running.
> 
> We do what RedHat does (via heritage).
> 
> Out of the box, Scyld ships an '/etc/beowulf/fstab' that would like
> to use NFS for '/home' -- but you don't even need that.
> 
> Beyond that, the Scyld preview relied on rdate to set the clocks on the
> nodes. This meant 'inetd' on the frontend.
> 
> We've ejected that requirement from our upcoming release with the
> following piece of code:
> 

Judd Tracy
jtracy at ist.ucf.edu


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