Yes, should've mentioned that we are running CentOS-7. However, as a first test I ran the setup on virtual machines (without any issues). This led me to believe the problem I see is at least partly connected to the switch.
Also, the problem persists even if I only boot a single node. Thanks, /jon Skickat från min iPhone > 13 mars 2017 kl. 21:15 skrev mathog <mat...@caltech.edu>: > > On 12-Mar-2017 12:00, Jon Tegner <teg...@renget.se> wrote >> This could possibly be a problem with the switch, but one remedy would >> seem to be to extend the time before the timeout kicks in (it seems to >> be a few seconds at the moment). Any hints on how to achieve this? > > That would depend on what you are booting. I suggest you ask in the forum > for the particular OS variant you are using. (Or at least tell us what it > is!) > > Have a look at this > > https://help.ubuntu.com/community/DisklessUbuntuHowto > > especially the "gotchas" section and see if anything applies. My best guess > is that the NFS mount is taking too long to complete. It doesn't sound like > a switch issue if there is no problem with the PXE or tftp parts. > > Are you booting a bunch of nodes at once or one at a time, staggered? All at > once could bog down the head node so much that some compute nodes time out. > > Regards, > > David Mathog > mat...@caltech.edu > Manager, Sequence Analysis Facility, Biology Division, Caltech > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
