[LU-2721] lfs fid2path logs kernel error on client when FID is not found Created: 31/Jan/13  Updated: 06/Feb/13  Resolved: 06/Feb/13

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.1.3
Fix Version/s: None

Type: Improvement Priority: Minor
Reporter: Alexander Boyko Assignee: WC Triage
Resolution: Won't Fix Votes: 0
Labels: patch

Rank (Obsolete): 6615

 Description   

When probing the file system on a client with lfs fid2path command, if the FID no longer exists the following error message is dropped in kernel log:

LustreError: 10725:0:(lmv_obd.c:854:lmv_iocontrol()) error: iocontrol MDC lustre-MDT0000_UUID on MDTidx 0 cmd c0086696: err = -2

Debug level appears to be set wrong for this operation.

 Comments   
Comment by Alexander Boyko [ 31/Jan/13 ]

http://review.whamcloud.com/5221

Comment by Alexander Boyko [ 31/Jan/13 ]

Xyratex MRP-673

Comment by Di Wang [ 31/Jan/13 ]

Note Fid2patch needs to be fixed after fid on OST and DNE are landed. http://review.whamcloud.com/#change,4345

Comment by Alexander Boyko [ 01/Feb/13 ]

Looks like this patch http://review.whamcloud.com/#change,4345 was updated month ago, and have problems with tests.
Di Wang, Why patch for this issue should be based on fid on OST and DNE? It only reduce error level for lmv_iocontrol()

Many errors happened if the FID no longer exist at lmv_iocontrol().
This fix change debug level for ENOENT from error to warning.
Comment by Di Wang [ 05/Feb/13 ]

Ah, sorry, I just noticed the patch is trying to reduce the console error message here.

Hmm, FID2PATH has been moved out of default section here. Could you please recheck master

        case OBD_IOC_FID2PATH: {
                struct getinfo_fid2path *gf;
                struct lmv_tgt_desc     *tgt;

                gf = (struct getinfo_fid2path *)karg;
                tgt = lmv_find_target(lmv, &gf->gf_fid);
                if (IS_ERR(tgt))
                        RETURN(PTR_ERR(tgt));
                rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
                break;
        }

So the error message has been removed for FID2PATH. Please correct me if I am wrong here. Thanks.

Comment by Alexander Boyko [ 06/Feb/13 ]

Patch was abandoned according to Di Wang comment.

Comment by Peter Jones [ 06/Feb/13 ]

ok thanks Alex

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