[LU-6102] OI scrub is triggered during racer test Created: 09/Jan/15  Updated: 23/Jan/15  Resolved: 22/Jan/15

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: Lustre 2.7.0

Type: Bug Priority: Critical
Reporter: nasf (Inactive) Assignee: nasf (Inactive)
Resolution: Fixed Votes: 0
Labels: MB

Issue Links:
Related
is related to LU-5202 LFSCK 5: LFSCK needs to log all chang... In Progress
Severity: 3
Rank (Obsolete): 16980

 Description   

When racer test for DNE2, we found that the OI scrub was triggered unexpectedly. We are not sure whether it is DNE2 patches introduced issue or it is existing bug on master.

Lustre: lustre-MDT0002-o: trigger OI scrub by RPC for [0x300000401:0xd9:0x0], rc = 0 [1]
Lustre: lustre-MDT0002-o: trigger OI scrub by RPC for [0x300000401:0xd9:0x0], rc = 0 [1]
Lustre: lustre-MDT0002-o: trigger OI scrub by RPC for [0x300000401:0xd9:0x0], rc = 0 [1]
Lustre: lustre-MDT0002-o: trigger OI scrub by RPC for [0x300000401:0xd9:0x0], rc = 0 [1]
Lustre: lustre-MDT0002-o: trigger OI scrub by RPC for [0x300000401:0xd9:0x0], rc = 0 [1]
Lustre: lustre-MDT0002-o: trigger OI scrub by RPC for [0x300000401:0xd9:0x0], rc = 0 [1]


 Comments   
Comment by Gerrit Updater [ 09/Jan/15 ]

Fan Yong (fan.yong@intel.com) uploaded a new patch: http://review.whamcloud.com/13314
Subject: LU-6102 osd: log message when trigger OI scrub
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 5324f0c1a1af07feb8efccdbfff16feec0e07ae9

Comment by nasf (Inactive) [ 20/Jan/15 ]

Di, would you please to try the patch in your DNE racer tests to see what will happen? Thanks!

Comment by Di Wang [ 20/Jan/15 ]

I tried a few times with this patch, but that problem did not happen again. Not easy to reproduce it for now.

Comment by Gerrit Updater [ 22/Jan/15 ]

Oleg Drokin (oleg.drokin@intel.com) merged in patch http://review.whamcloud.com/13314/
Subject: LU-6102 osd: log message when trigger OI scrub
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: bd6cce5b0d88523e6ab629a60b776347f9212cd9

Comment by Peter Jones [ 22/Jan/15 ]

Landed for 2.7

Comment by nasf (Inactive) [ 23/Jan/15 ]

In fact, this patch is mainly for debug, we still not know the real reason for why OI scrub is trigger during NDE racer test. But because the issue was found on DNE branch, not directly on master, and Di said that he cannot reproduce it any more. We can re-open it until we hit it in the future.

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