Am Mittwoch 23 Dezember 2009 12:22:17 schrieb Christopher J. Walker: > > > > 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.
Yes. These messages do occur before 'auto'-un-mounting. So nothing to worry about. The above is the mount process. Unmounting should look like this: Jun 17 04:00:16 cluster1 LustreError: 6460:0:(ldlm_request.c:1043:ldlm_cli_cancel_req()) Got rc -108 from cancel RPC: canceling anyway Jun 17 04:00:16 cluster1 LustreError: 6460:0:(ldlm_request.c:1632:ldlm_cli_cancel_list()) ldlm_cli_cancel_list: -108 Jun 17 04:00:16 cluster1 Lustre: client ffff8100c44d1000 umount complete If you don't see the last line 'umount complete' automount + lustre will hang and there should be no further access to the lustre system. Happend to us in our scenario. > > Is automounting a bad idea? It depends. We had some bad experiences with lustre-1.6.6 and automount. See the mail archive about it. Subject: 'Stalled autofs + lustre' Our problem should be resolved with upgrading to 1.8.x. We will test again in Jan/Feb 2010 when the upgrade is sheduled. Regards Heiko _______________________________________________ Lustre-discuss mailing list Lustre-discuss@lists.lustre.org http://lists.lustre.org/mailman/listinfo/lustre-discuss
