Re: [ceph-users] scrub error: found clone without head

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rb.0.15c26.238e1f29

Has that rbd volume been removed?
-Sam

On Wed, May 22, 2013 at 12:18 PM, Olivier Bonvalet <ceph.list@xxxxxxxxx> wrote:
> 0.61-11-g3b94f03 (0.61-1.1), but the bug occured with bobtail.
>
>
> Le mercredi 22 mai 2013 à 12:00 -0700, Samuel Just a écrit :
>> What version are you running?
>> -Sam
>>
>> On Wed, May 22, 2013 at 11:25 AM, Olivier Bonvalet <ceph.list@xxxxxxxxx> wrote:
>> > Is it enough ?
>> >
>> > # tail -n500 -f /var/log/ceph/osd.28.log | grep -A5 -B5 'found clone without head'
>> > 2013-05-22 15:43:09.308352 7f707dd64700  0 log [INF] : 9.105 scrub ok
>> > 2013-05-22 15:44:21.054893 7f707dd64700  0 log [INF] : 9.451 scrub ok
>> > 2013-05-22 15:44:52.898784 7f707cd62700  0 log [INF] : 9.784 scrub ok
>> > 2013-05-22 15:47:43.148515 7f707cd62700  0 log [INF] : 9.3c3 scrub ok
>> > 2013-05-22 15:47:45.717085 7f707dd64700  0 log [INF] : 9.3d0 scrub ok
>> > 2013-05-22 15:52:14.573815 7f707dd64700  0 log [ERR] : scrub 3.6b ade3c16b/rb.0.15c26.238e1f29.000000009221/12d7//3 found clone without head
>> > 2013-05-22 15:55:07.230114 7f707d563700  0 log [ERR] : scrub 3.6b 261cc0eb/rb.0.15c26.238e1f29.000000003671/12d7//3 found clone without head
>> > 2013-05-22 15:56:56.456242 7f707d563700  0 log [ERR] : scrub 3.6b b10deaeb/rb.0.15c26.238e1f29.0000000086a2/12d7//3 found clone without head
>> > 2013-05-22 15:57:51.667085 7f707dd64700  0 log [ERR] : 3.6b scrub 3 errors
>> > 2013-05-22 15:57:55.241224 7f707dd64700  0 log [INF] : 9.450 scrub ok
>> > 2013-05-22 15:57:59.800383 7f707cd62700  0 log [INF] : 9.465 scrub ok
>> > 2013-05-22 15:59:55.024065 7f707661a700  0 -- 192.168.42.3:6803/12142 >> 192.168.42.5:6828/31490 pipe(0x2a689000 sd=108 :6803 s=2 pgs=200652 cs=73 l=0).fault with nothing to send, going to standby
>> > 2013-05-22 16:01:45.542579 7f7022770700  0 -- 192.168.42.3:6803/12142 >> 192.168.42.5:6828/31490 pipe(0x2a689280 sd=99 :6803 s=0 pgs=0 cs=0 l=0).accept connect_seq 74 vs existing 73 state standby
>> > --
>> > 2013-05-22 16:29:49.544310 7f707dd64700  0 log [INF] : 9.4eb scrub ok
>> > 2013-05-22 16:29:53.190233 7f707dd64700  0 log [INF] : 9.4f4 scrub ok
>> > 2013-05-22 16:29:59.478736 7f707dd64700  0 log [INF] : 8.6bb scrub ok
>> > 2013-05-22 16:35:12.240246 7f7022770700  0 -- 192.168.42.3:6803/12142 >> 192.168.42.5:6828/31490 pipe(0x2a689280 sd=99 :6803 s=2 pgs=200667 cs=75 l=0).fault with nothing to send, going to standby
>> > 2013-05-22 16:35:19.519019 7f707d563700  0 log [INF] : 8.700 scrub ok
>> > 2013-05-22 16:39:15.422532 7f707dd64700  0 log [ERR] : scrub 3.1 b1869301/rb.0.15c26.238e1f29.000000000836/12d7//3 found clone without head
>> > 2013-05-22 16:40:04.995256 7f707cd62700  0 log [ERR] : scrub 3.1 bccad701/rb.0.15c26.238e1f29.000000009a00/12d7//3 found clone without head
>> > 2013-05-22 16:41:07.008717 7f707d563700  0 log [ERR] : scrub 3.1 8a9bec01/rb.0.15c26.238e1f29.000000009820/12d7//3 found clone without head
>> > 2013-05-22 16:41:42.460280 7f707c561700  0 log [ERR] : 3.1 scrub 3 errors
>> > 2013-05-22 16:46:12.385678 7f7077735700  0 -- 192.168.42.3:6803/12142 >> 192.168.42.5:6828/31490 pipe(0x2a689c80 sd=137 :6803 s=0 pgs=0 cs=0 l=0).accept connect_seq 76 vs existing 75 state standby
>> > 2013-05-22 16:58:36.079010 7f707661a700  0 -- 192.168.42.3:6803/12142 >> 192.168.42.3:6801/11745 pipe(0x2a689a00 sd=44 :6803 s=0 pgs=0 cs=0 l=0).accept connect_seq 40 vs existing 39 state standby
>> > 2013-05-22 16:58:36.798038 7f707d563700  0 log [INF] : 9.50c scrub ok
>> > 2013-05-22 16:58:40.104159 7f707c561700  0 log [INF] : 9.526 scrub ok
>> >
>> >
>> > Note : I have 8 scrub errors like that, on 4 impacted PG, and all impacted objects are about the same RBD image (rb.0.15c26.238e1f29).
>> >
>> >
>> >
>> > Le mercredi 22 mai 2013 à 11:01 -0700, Samuel Just a écrit :
>> >> Can you post your ceph.log with the period including all of these errors?
>> >> -Sam
>> >>
>> >> On Wed, May 22, 2013 at 5:39 AM, Dzianis Kahanovich
>> >> <mahatma@xxxxxxxxxxxxxx> wrote:
>> >> > Olivier Bonvalet пишет:
>> >> >>
>> >> >> Le lundi 20 mai 2013 à 00:06 +0200, Olivier Bonvalet a écrit :
>> >> >>> Le mardi 07 mai 2013 à 15:51 +0300, Dzianis Kahanovich a écrit :
>> >> >>>> I have 4 scrub errors (3 PGs - "found clone without head"), on one OSD. Not
>> >> >>>> repairing. How to repair it exclude re-creating of OSD?
>> >> >>>>
>> >> >>>> Now it "easy" to clean+create OSD, but in theory - in case there are multiple
>> >> >>>> OSDs - it may cause data lost.
>> >> >>>
>> >> >>> I have same problem : 8 objects (4 PG) with error "found clone without
>> >> >>> head". How can I fix that ?
>> >> >> since "pg repair" doesn't handle that kind of errors, is there a way to
>> >> >> manually fix that ? (it's a production cluster)
>> >> >
>> >> > Trying to fix manually I cause assertions in trimming process (died OSD). And
>> >> > many others troubles. So, if you want to keep cluster running, wait for
>> >> > developers answer. IMHO.
>> >> >
>> >> > About manual repair attempt: see issue #4937. Also similar results - in subject
>> >> > "Inconsistent PG's, repair ineffective".
>> >> >
>> >> > --
>> >> > WBR, Dzianis Kahanovich AKA Denis Kaganovich, http://mahatma.bspu.unibel.by/
>> >> > _______________________________________________
>> >> > ceph-users mailing list
>> >> > ceph-users@xxxxxxxxxxxxxx
>> >> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>> >>
>> >
>> >
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