Hi Simon
Simon Kelley wrote:
Joe Landman wrote:
I would hazard that any DHCP/PXE type install server would struggle
with 2000 requests (yes- you arrange the power switching and/or
reboots to stagger at N second intervals).
fwiw: we use dnsmasq to serve dhcp and handle pxe booting. It does a
marvelous job of both, and is far easier to configure (e.g. it is less
fussy) than dhcpd.
Joe, you might like to know that the next release of dnsmasq includes a
TFTP server so that it can do the whole job. The process model for the
TFTP implementation should be well suited to booting many nodes at once
because it multiplexes all the connections on the same process. My guess
is that will work better then having inetd fork 2000 copies of tftpd,
which is what would happen with traditional TFTP servers.
I am glad to hear this. I haven't found a case that ISC DHCP does a
better job than dnsmasq for our clusters: the former is hard to
configure properly; it is quite fussy. Add in that we don't need to
configure bind on the cluster (really doesn't make much sense in most
cases, unless you are doing some sort of fail-over cluster config) when
we use dnsmasq... this is a good tool.
We haven't explicitly enabled it in our Rocks roll as a default option,
but we typically turn off bind and the local dhcp server there as this
does a much better job. For our non-rocks units, we simply use this by
default.
Great job Simon!
Joe
--
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: [EMAIL PROTECTED]
web : http://www.scalableinformatics.com
phone: +1 734 786 8423
fax : +1 734 786 8452
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