[lustre-discuss] non-existing client in logs

Horn, Chris chris.horn at hpe.com
Thu Jul 15 07:41:19 PDT 2021

The peer may be stuck in the LNet health recovery queue. You may be able to check by running this on the MDS nodes:

$ lnetctl debug recovery --peer

You could resolve the issue by deleting the peer entry from the peer tables

$ lnetctl peer del --prim at o2ib5<mailto: at o2ib5>

Chris Horn

From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Thomas Roth <t.roth at gsi.de>
Date: Thursday, July 15, 2021 at 5:06 AM
To: lustre-discuss at lists.lustre.org <lustre-discuss at lists.lustre.org>
Subject: [lustre-discuss] non-existing client in logs
Dear all,

in the logs of our 3 MDS (Lustre 2.12.5), on NID is continously reported as missing, e.g.

 > LNet: 3571:0:(o2iblnd_cb.c:3397:kiblnd_check_conns()) Timed out tx for at o2ib5: 1 seconds

Once upon a time, there was indeed a batch node with that IP. It has been decomissioned and switched off some time last year, but still crops up in
the logs.

Recently I managed to revive the old hardware, connect it to Lustre. The MDS recognized the node. Then I umounted, which worked without a problem.
Nevertheless, the NID keeps reappearing in the logs.

Any way to make the MDSes understand that this box is gone for good? Perhaps install a new one with the old IP?


Thomas Roth
Department: IT
Location: SB3 2.291
Phone: +49-6159-71 1453  Fax: +49-6159-71 2986

GSI Helmholtzzentrum für Schwerionenforschung GmbH
Planckstraße 1, 64291 Darmstadt, Germany, http://www.gsi.de<http://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
lustre-discuss at lists.lustre.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lustre.org/pipermail/lustre-discuss-lustre.org/attachments/20210715/1064d428/attachment.html>

More information about the lustre-discuss mailing list