[Lustre-discuss] ldlm_cli_cancel_req()) Got rc -108 from cancel RPC: canceling anyway
Christopher J. Walker
C.J.Walker at qmul.ac.uk
Wed Dec 23 03:22:17 PST 2009
Miguel Angel Gila Arrondo wrote:
> Hi all,
>
> We're seeing the same error message in our Lustre clients when umounting a
> lustre filesystem, but only in a very specific situation:
>
> When trying to empty an OST with the simple data migration script
> (http://manual.lustre.org/manual/LustreManual18_HTML/LustreOperatingTips.html#50532487_pgfId-1292867),
> sometimes inconsistences appear. Doing ls -lh in the client that just ran the
> script shows 0 file size for some files, while doing it in another client shows
> the correct file size for the same files.
>
> This gets solved by umounting and mounting again the Lustre filesystem,
> although the mentioned error messages appear in /var/log/messages of the
> client:
>
> Dec 22 17:18:49 proof kernelLustreError: 10917:0:
> (ldlm_request.c:1030:ldlm_cli_cancel_req()) Got rc -108 from cancel RPC:
> canceling anyway
> Dec 22 17:18:49 proof kernelLustreError: 10917:0:
> (ldlm_request.c:1030:ldlm_cli_cancel_req()) Skipped 169 previous similar
> messages
> Dec 22 17:18:49 proof kernelLustreError: 10917:0:
> (ldlm_request.c:1533:ldlm_cli_cancel_list()) ldlm_cli_cancel_list: -108
> Dec 22 17:18:49 proof kernelLustreError: 10917:0:
> (ldlm_request.c:1533:ldlm_cli_cancel_list()) Skipped 169 previous similar
> messages
> Dec 22 17:18:49 proof kernelLustre: client ffff81042fccf400 umount complete
> Dec 22 17:19:02 proof kernelLustre: Client userdata-client has started
>
> Is anybody else seeing these messages in this situation? Does anyboyd know for
> a workaround??
Like Ewan, our Lustre filesystem is automounted. Whilst I haven't done a
detailed study, it does look as though these messages occur immediately
before unmounting the filesystem.
Is automounting a bad idea?
Chris
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