[LU-8806] LFSCK hangs on MDT - osp_precreate_cleanup_orphans - cannot cleanup orphans: rc = -107

• Type: Bug
• Resolution: Duplicate
• Priority: Minor
• Affects Version/s: Lustre 2.9.0, Lustre 2.10.0, Lustre 2.10.3
• Labels: soak
• Environment: Soak cluster, tip of Lustre-master lustre: 2.8.59_79_gb8811a0
• Severity: 3
• Assignee: Alex Zhuravlev
• Reporter: Cliff White (Inactive)

Description

After a failover, lfsck is started.
2016-11-04 15:18:59,065:fsmgmt.fsmgmt:INFO lfsck started on lola-8
lfsck never completes.
2016-11-06 01:08:25,976:fsmgmt.fsmgmt:INFO lfsck still in progress for soaked-MDT0000 after 122865s
Examining the logs, we see that the connection to OST0002 is going up and down, orphans cannot be cleaned up.

Nov  4 15:18:32 lola-8 kernel: LustreError: 11-0: soaked-OST0017-osc-MDT0000: operation obd_ping to node 192.168.1.106@o2ib10 failed: rc = -107
Nov  4 15:18:36 lola-8 kernel: LustreError: 11-0: soaked-OST0005-osc-MDT0000: operation ost_statfs to node 192.168.1.106@o2ib10 failed: rc = -107
Nov  4 15:18:46 lola-8 kernel: LustreError: 6010:0:(osp_precreate.c:903:osp_precreate_cleanup_orphans()) soaked-OST0002-osc-MDT0000: cannot cleanup orphans: rc = -107
Nov  4 15:18:57 lola-8 kernel: LustreError: 11-0: soaked-OST000b-osc-MDT0000: operation obd_ping to node 192.168.1.106@o2ib10 failed: rc = -107
Nov  4 15:18:57 lola-8 kernel: LustreError: Skipped 1 previous similar message
Nov  4 15:19:27 lola-8 kernel: Lustre: 5851:0:(client.c:2111:ptlrpc_expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1478297366/real 1478297366]  req@ffff8807e61689c0 x1550005401109488/t0(0) o6->soaked-OST0002-osc-MDT0000@192.168.1.104@o2ib10:28/4 lens 664/432 e 23 to 1 dl 1478297967 ref 1 fl Rpc:X/2/ffffffff rc -11/-1
Nov  4 15:19:27 lola-8 kernel: Lustre: soaked-OST0002-osc-MDT0000: Connection to soaked-OST0002 (at 192.168.1.104@o2ib10) was lost; in progress operations using this service will wait for recovery to complete
Nov  4 15:19:27 lola-8 kernel: Lustre: Skipped 9 previous similar messages
Nov  4 15:19:27 lola-8 kernel: Lustre: soaked-OST0002-osc-MDT0000: Connection restored to 192.168.1.104@o2ib10 (at 192.168.1.104@o2ib10)
Nov  4 15:19:27 lola-8 kernel: Lustre: Skipped 18 previous similar messages
Nov  4 15:19:27 lola-8 kernel: Lustre: 5851:0:(client.c:2111:ptlrpc_expire_one_request()) Skipped 38 previous similar messages
Nov  4 15:29:28 lola-8 kernel: Lustre: 5830:0:(client.c:2111:ptlrpc_expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1478297967/real 1478297967]  req@ffff8803e013d380 x1550005401094688/t0(0) o1000->soaked-OST0002-osc-MDT0000@192.168.1.104@o2ib10:24/4 lens 520/4320 e 23 to 1 dl 1478298568 ref 1 fl Rpc:X/2/ffffffff rc -11/-1
Nov  4 15:29:28 lola-8 kernel: Lustre: 5830:0:(client.c:2111:ptlrpc_expire_one_request()) Skipped 1 previous similar message
Nov  4 15:29:28 lola-8 kernel: Lustre: soaked-OST0002-osc-MDT0000: Connection to soaked-OST0002 (at 192.168.1.104@o2ib10) was lost; in progress operations using this service will wait for recovery to complete
Nov  4 15:29:28 lola-8 kernel: Lustre: Skipped 1 previous similar message
Nov  4 15:29:28 lola-8 kernel: Lustre: soaked-OST0002-osc-MDT0000: Connection restored to 192.168.1.104@o2ib10 (at 192.168.1.104@o2ib10)
Nov  4 15:29:28 lola-8 kernel: Lustre: Skipped 1 previous similar message
Nov  4 15:31:22 lola-8 kernel: LustreError: 6010:0:(osp_precreate.c:903:osp_precreate_cleanup_orphans()) soaked-OST0002-osc-MDT0000: cannot cleanup orphans: rc = -107
Nov  4 15:39:29 lola-8 kernel: Lustre: 5840:0:(client.c:2111:ptlrpc_expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1478298568/real 1478298568]  req@ffff8803c0c980c0 x1550005401096032/t0(0) o1000->soaked-OST0002-osc-MDT0000@192.168.1.104@o2ib10:24/4 lens 520/4320 e 23 to 1 dl 1478299169 ref 1 fl Rpc:X/2/ffffffff rc -11/-1
Nov  4 15:39:29 lola-8 kernel: Lustre: 5840:0:(client.c:2111:ptlrpc_expire_one_request()) Skipped 2 previous similar messages
Nov  4 15:39:29 lola-8 kernel: Lustre: soaked-OST0002-osc-MDT0000: Connection to soaked-OST0002 (at 192.168.1.104@o2ib10) was lost; in progress operations using this service will wait for recovery to complete

lola-4 during this time was experiencing difficulties communicating with the MDS, prior to the start of the lfsck.

Nov  4 14:49:18 lola-4 kernel: Lustre: 33277:0:(service.c:1331:ptlrpc_at_send_early_reply()) @@@ Couldn't add any time (5/5), not sending early reply
Nov  4 14:49:18 lola-4 kernel:  req@ffff88050f9c2450 
x1550005401098800/t0(0) o1000->soaked-MDT0000-mdtlov_UUID@192.168.1.108@o2ib10:-1/-1 lens 520/0 e 0 to 0 dl 1478296163 ref 2 fl New:/2/ffffffff rc 0/-1
Nov  4 14:49:18 lola-4 kernel: Lustre: 33277:0:(service.c:1331:ptlrpc_at_send_early_reply()) Skipped 96 previous similar messages
Nov  4 14:49:24 lola-4 kernel: Lustre: soaked-OST0002: Client soaked-MDT0000-mdtlov_UUID (at 192.168.1.108@o2ib10) reconnecting
Nov  4 14:38:26 lola-4 kernel: Lustre: soaked-OST0002: Export ffff8802e106a800 already connecting from 192.168.1.113@o2ib100
Nov  4 14:38:26 lola-4 kernel: Lustre: Skipped 12 previous similar messages
Nov  4 14:39:17 lola-4 kernel: Lustre: 33277:0:(service.c:1331:ptlrpc_at_send_early_reply()) @@@ Couldn't add any time (5/5), not sending early reply
Nov  4 14:39:17 lola-4 kernel:  req@ffff88052335ec50 x1550005401085472/t0(0) o1000->soaked-MDT0000-mdtlov_UUID@192.168.1.108@o2ib10:-1/-1 lens 520/0 e 0 to 0 dl 1478295562 ref 2 fl New:/2/ffffffff rc 0/-1
Nov  4 14:39:17 lola-4 kernel: Lustre: 33277:0:(service.c:1331:ptlrpc_at_send_early_reply()) Skipped 95 previous similar messages
Nov  4 14:39:23 lola-4 kernel: Lustre: soaked-OST0002: Client soaked-MDT0000-mdtlov_UUID (at 192.168.1.108@o2ib10) reconnecting
Nov  4 14:39:23 lola-4 kernel: Lustre: Skipped 13 previous similar messages
Nov  4 14:39:23 lola-4 kernel: Lustre: soaked-OST0002: Connection restored to soaked-MDT0000-mdtlov_UUID (at 192.168.1.108@o2ib10)
Nov  4 14:49:16 lola-4 kernel: Lustre: soaked-OST0002: Export ffff8802e106a800 already connecting from 192.168.1.113@o2ib100
Nov  4 14:49:16 lola-4 kernel: Lustre: Skipped 12 previous similar messages
Nov  4 14:49:18 lola-4 kernel: Lustre: 33277:0:(service.c:1331:ptlrpc_at_send_early_reply()) @@@ Couldn't add any time (5/5), not sending early reply
Nov  4 14:49:18 lola-4 kernel:  req@ffff88050f9c2450 x1550005401098800/t0(0) o1000->soaked-MDT0000-mdtlov_UUID@192.168.1.108@o2ib10:-1/-1 lens 520/0 e 0 to 0 dl 1478296163 ref 2 fl New:/2/ffffffff rc 0/-1
Nov  4 14:49:18 lola-4 kernel: Lustre: 33277:0:(service.c:1331:ptlrpc_at_send_early_reply()) Skipped 96 previous similar messages
Nov  4 14:49:24 lola-4 kernel: Lustre: soaked-OST0002: Client soaked-MDT0000-mdtlov_UUID (at 192.168.1.108@o2ib10) reconnecting

lola-4 continued dumping stacks, finally restarted the cluster
Prior to restart, dumped lctl logs from lola-4 and lola-8, those are attached with message logs

Issue Links

• is related to: LU-5994 DT transaction start and object lock ordering
• is related to: LU-10048 osd-ldiskfs to truncate outside of main transaction
• is related to: LU-5165 Test failure on test suite recovery-small, subtest test_29a

Comments

[Andreas Dilger]

Closing this as a duplicate of LU-10048, which landed a patch for 2.12.

[Andreas Dilger]

Alexey, the https://review.whamcloud.com/23689 patch points at https://review.whamcloud.com/27488 and 23689 has been abandoned. If you are having problems with this issue, then we welcome you to review and test that patch as you said you would do a few months ago, or submit a patch of your own. That is especially useful if this code is broken continuously for you, since it means you have a good reproducer and can verify if the fix works. I would also welcome an alternative patch based on the old ext3 delete thread, that pushes the extents/blocks to be truncated off to another temporary inode during the main transaction, and then does the actual truncate asynchronously. That would speed up all ext4 truncate/unlink operations, and not require changes to Lustre.

[Alexey Lyashkov]

Peter,

You have say this is targeted for 2.11 but i don't see a progress in ticket and lfsck broken continuously.

[Alexey Lyashkov]

Peter,

i see no updates for this patch for year. If you talk about an Alex patch, it's just a part of this solution and i will add to watchers to it.
As about alternative solution - i don't see any good for now. It just a notification - it have a 2.7,2.8, 2.9 affected.
Not about 2.10/2.11.

[Peter Jones]

Alexey

This issue is presently targeted for the 2.11 release and a draft patch of one possible patch exists already. Feel free to provide an alternative approach or feedback on any testing you conduct on the existing prototype.

Peter