Can't tftp boot discovery image on more than one client at a time

Support
#1

Hi,
I have an environment where I'm rebooting multiple clients at the same time to pxe boot. When I do so, only one client at a time is able to load the foreman discovery image from my tftp server. One client will win the race and the others will wait and eventually timeout. This even happens if I set my 'wait' parameter to "no" in my tftp config file. Shouldn't I be able to pxe boot more than one discovery image at a time ? My tftp server has a 10G link. I don't seem to have an issue if I attempt to pxe boot multiple clients to another pxe file for instance rhel 7.2 images. Has anyone run into this issue ?

#2

Yes, TFTP is very unreliable protocol, particularly if you put the
service under load. I recommend to chainboot iPXE and boot systems via
HTTP. This is undocumented, but you can google that out easily. This
will scale fine, TFTP will be only used to download PXELinux config
and iPXE (a megabyte), the rest will be HTTP.

Blogpost required if you find this working!

LZ

··· On Sun, Feb 12, 2017 at 4:11 PM, Marcus Torres wrote: > Hi, > I have an environment where I'm rebooting multiple clients at the same time to pxe boot. When I do so, only one client at a time is able to load the foreman discovery image from my tftp server. One client will win the race and the others will wait and eventually timeout. This even happens if I set my 'wait' parameter to "no" in my tftp config file. Shouldn't I be able to pxe boot more than one discovery image at a time ? My tftp server has a 10G link. I don't seem to have an issue if I attempt to pxe boot multiple clients to another pxe file for instance rhel 7.2 images. Has anyone run into this issue ? > > -- > You received this message because you are subscribed to the Google Groups "Foreman users" group. > To unsubscribe from this group and stop receiving emails from it, send an email to foreman-users+unsubscribe@googlegroups.com. > To post to this group, send email to foreman-users@googlegroups.com. > Visit this group at https://groups.google.com/group/foreman-users. > For more options, visit https://groups.google.com/d/optout.

–
Later,
Lukas @lzap Zapletal

#3

Thanks! Let me follow up with that and see if it works better and I'll document it for sure !

#4

How it went? The document you are looking for is:

http://projects.theforeman.org/projects/foreman/wiki/Fetch_boot_files_via_http_instead_of_TFTP

But for discovery you need to change things slightly different. Let us
know, ideally write new chapter for this wiki page!

LZ

··· On Thu, Feb 16, 2017 at 11:25 PM, Marcus Torres wrote: > Thanks! Let me follow up with that and see if it works better and I'll document it for sure ! > > -- > You received this message because you are subscribed to the Google Groups "Foreman users" group. > To unsubscribe from this group and stop receiving emails from it, send an email to foreman-users+unsubscribe@googlegroups.com. > To post to this group, send email to foreman-users@googlegroups.com. > Visit this group at https://groups.google.com/group/foreman-users. > For more options, visit https://groups.google.com/d/optout.

–
Later,
Lukas @lzap Zapletal