Great! This worked.
Many thanks, Chris

Thomas

On 7/15/21 4:41 PM, Horn, Chris wrote:
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 10.20.1.237@o2ib5<mailto:10.20.1.237@o2ib5>

Chris Horn

From: lustre-discuss <[email protected]> on behalf of Thomas 
Roth <[email protected]>
Date: Thursday, July 15, 2021 at 5:06 AM
To: [email protected] <[email protected]>
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 
10.20.1.237@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?

Regards,
Thomas

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