[Lustre-discuss] lock callback timer expired: evicting client

Per Lundqvist perl at nsc.liu.se
Fri Dec 21 01:06:54 PST 2007


I have now tried to reproduce this problem using the 1.6.4.1 client, and 
it seems that the problem is fixed in 1.6.4.1 as the referenced bugzilla 
entry claims. Thanks Brian!

But now my test case often provokes these kind of messages:

/var/log/messages on MDS:
   Dec 20 19:05:12 mds2 kernel: LustreError: 5585:0:(ldlm_lockd.c:1056:ldlm_handle_cancel()) received cancel for unknown lock cookie 0x959917d43d0e9ea1 from client 636a48bd-4096-6592-497e-9432c3099b2f id 12345-192.168.11.73 at tcp

(no errors logged on the corresponding clients and on any OSS):

When running my test case 1000 times on 6 nodes, I got 269 messages about 
"received cancel for unknown lock...", (naming all 6 involved clients).

/Per Lundqvist

-- 
Per Lundqvist

National Supercomputer Centre
Linköping University, Sweden

http://www.nsc.liu.se


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