Could this be due to the fact that the IP for the primary host is 10.20.3.0? I don't know what your netmask is, so I don't know if that is a valid host IP address. Or maybe since it looks like a network address, Lustre is not using it as a host address?
-Rick On 3/17/21, 7:57 AM, "lustre-discuss on behalf of Thomas Roth via lustre-discuss" <[email protected] on behalf of [email protected]> wrote: Hi all, I wonder if I am seeing signs of network problems when mounting an OST: tunefs.lustre --dryrun tells me (what I know from my own format command) >Parameters: mgsnode=10.20.3.0@o2ib5:10.20.3.1@o2ib5 These are the nids for our MGS+MDT0, there are two more pairs for MDT1 and MDT2. I went step-by-step, modprobing lnet and lustre, and checking LNET by 'lnet ping' to the active MDTs, which worked fine. However, mounting such an OST (e.g. after a crash) at first prints a number of > LNet: 19444:0:(o2iblnd_cb.c:3397:kiblnd_check_conns()) Timed out tx for 10.20.3.1@o2ib5: 0 seconds and similarly for the failover partners of the other two MDS. Should it do that? Imho, LNET to a failover node _must_ fail, because LNET should not be up on the failover node, right? If I started LNET there, and some client does not get an answer quickly enough from the acting MDS, it would try the failover, LNET yes but Lustre no - that doesn't sound right. Regards, Thomas -- -------------------------------------------------------------------- Thomas Roth Department: Informationstechnologie Location: SB3 2.291 Phone: +49-6159-71 1453 Fax: +49-6159-71 2986 GSI Helmholtzzentrum für Schwerionenforschung GmbH Planckstraße 1, 64291 Darmstadt, Germany, www.gsi.de Commercial Register / Handelsregister: Amtsgericht Darmstadt, HRB 1528 Managing Directors / Geschäftsführung: Professor Dr. Paolo Giubellino, Dr. Ulrich Breuer, Jörg Blaurock Chairman of the Supervisory Board / Vorsitzender des GSI-Aufsichtsrats: State Secretary / Staatssekretär Dr. Volkmar Dietz _______________________________________________ lustre-discuss mailing list [email protected] http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org _______________________________________________ lustre-discuss mailing list [email protected] http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
