Re: inconsistent pgs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 10 Aug 2015, ?????????? ??????? wrote:
> Uploaded another corrupted piece.
> 
> 2015-08-10 16:18:40.027726 7f7979697700 -1 log_channel(cluster) log
> [ERR] : be_compare_scrubmaps: 3.fd shard 6: soid
> f2e832fd/rbd_data.ab7174b0dc51.0000000000000249/head//3 data_digest
> 0x64e94460 != known data_digest 0xaec3bea8 from auth shard 10
> 
> # ceph-post-file ceph-6-rbd_data.ab7174b0dc51.0000000000000249
> ceph-post-file: e96e5828-b97c-45f1-8e3f-23abbf700865
> 
> # ceph-post-file ceph-10-rbd_data.ab7174b0dc51.0000000000000249
> ceph-post-file: e1277a33-74a5-4d46-93c8-266bd81867db
> 
> I dont' think of bad disk:
> - all OSDs SMART is clean,
> - I tried to ceph pg repair 3.d8 on another OSDs in the past with the
> same result. Then I rebalanced the cluster so that pg 3.d8 moved to
> [7,1].

Again, it's all single bit changes:

144081,144082c144081,144082
< 002c74e0  05 00 00 00 04 00 00 00  ff ff ff ff 04 00 00 00  |................|
< 002c74f0  ff ff ff ff 09 00 00 00  ff ff ff ff 04 00 00 00  |................|
---
> 002c74e0  04 00 00 00 04 00 00 00  ff ff ff ff 04 00 00 00  |................|
> 002c74f0  ff ff ff ff 08 00 00 00  ff ff ff ff 04 00 00 00  |................|
144086,144087c144086,144087
< 002c7530  03 00 00 00 1c 00 00 00  ff ff ff ff 08 00 00 00  |................|
< 002c7540  ff ff ff ff 03 00 00 00  04 00 00 00 08 00 00 00  |................|
---
> 002c7530  02 00 00 00 1c 00 00 00  ff ff ff ff 08 00 00 00  |................|
> 002c7540  ff ff ff ff 02 00 00 00  04 00 00 00 08 00 00 00  |................|
144092c144092
< 002c7590  04 00 00 00 ff ff ff ff  03 00 00 00 01 00 00 00  |................|
---
> 002c7590  04 00 00 00 ff ff ff ff  02 00 00 00 01 00 00 00  |................|
144095c144095
< 002c75c0  ff ff ff ff 04 00 00 00  ff ff ff ff 03 00 00 00  |................|
---
> 002c75c0  ff ff ff ff 04 00 00 00  ff ff ff ff 02 00 00 00  |................|
173907c173907
< 0033c070  ff ff ff ff 03 00 00 00  0c 00 00 00 ff ff ff ff  |................|
---
> 0033c070  ff ff ff ff 02 00 00 00  0c 00 00 00 ff ff ff ff  |................|
199740c199740
< 003a1020  ff ff c7 86 38 02 00 00  ff ff ff ff 6b 00 c7 86  |....8.......k...|
---
> 003a1020  ff ff c7 86 38 02 00 00  ff ff ff ff 6a 00 c7 86  |....8.......j...|

It looks like it's also always the least significant bit in a 4-byte word.  

Can you see if there is any pattern to which OSDs are used for the 
inconsistent PGs?

sage


> 
> ??????? ??????????
> ???.: +7 (909) 945-89-42
> 
> 
> 2015-08-10 15:32 GMT+03:00 Sage Weil <sage@xxxxxxxxxxxx>:
> > On Mon, 10 Aug 2015, ?????????? ??????? wrote:
> >> Posted 2 files
> >>
> >> ceph-1-rbd_data.3ef8442ae8944a.0000000000000aff
> >> ceph-post-file: 10cddc98-7177-47d8-9a97-4868856f974b
> >>
> >> ceph-7-rbd_data.3ef8442ae8944a.0000000000000aff
> >> ceph-post-file: f2861c0a-fc9a-4078-b95c-d5ba3cf6057e
> >>
> >> By the way, file names were found like this
> >> /var/lib/ceph/osd/ceph-1/current/3.d8_head/DIR_8/DIR_D/DIR_2/rbd\udata.3ef8442ae8944a.0000000000000aff__head_CC49F2D8__3
> >> /var/lib/ceph/osd/ceph-7/current/3.d8_head/DIR_8/DIR_D/DIR_2/DIR_F/rbd\udata.3ef8442ae8944a.0000000000000aff__head_CC49F2D8__3
> >> There is "rbd\udata." in the prefix, not "rbd_data.". Don't know if it
> >> relevant to this case or not. Just FYI.
> >
> > The file contents differ by exactly one bit (0x0a -> 0x0b).  I would
> > look at the other PGs that are coming up inconsistent (ceph pg dump | grep
> > inconsistent) and see if there is a pattern to which OSDs they map to.
> > Maybe you just have a bad disk?
> >
> > sage
> >
> >
> >>
> >> ??????? ??????????
> >> ???.: +7 (909) 945-89-42
> >>
> >>
> >> 2015-08-09 17:23 GMT+03:00 Sage Weil <sage@xxxxxxxxxxxx>:
> >> > On Sat, 8 Aug 2015, ?????????? ??????? wrote:
> >> >> Hi!
> >> >>
> >> >> I have a large number of inconsistent pgs 229 of 656, and it's
> >> >> increasing every hour.
> >> >> I'm using ceph version 0.94.2 (5fb85614ca8f354284c713a2f9c610860720bbf3).
> >> >>
> >> >> For example, pg 3.d8:
> >> >> # ceph health detail | grep 3.d8
> >> >> pg 3.d8 is active+clean+scrubbing+deep+inconsistent, acting [1,7]
> >> >>
> >> >> # grep 3.d8 /var/log/ceph/ceph-osd.1.log | less -S
> >> >> 2015-08-07 13:10:48.311810 7f5903f7a700 0 log_channel(cluster) log
> >> >> [INF] : 3.d8 repair starts 2015-08-07 13:12:05.703084 7f5903f7a700 -1
> >> >> log_channel(cluster) log [ERR] : repair 3.d8
> >> >> cbd2d0d8/rbd_data.6a5cf474b0dc51.0000000000000b1f/head//3 on disk data
> >> >> digest 0x6e4d80bf != 0x6fb5b103 2015-08-07 13:13:26.837524
> >> >> 7f5903f7a700 -1 log_channel(cluster) log [ERR] : repair 3.d8
> >> >> b5892d8/rbd_data.dbe674b0dc51.00000000000001b9/head//3 on disk data
> >> >> digest 0x79082779 != 0x9f102f3d 2015-08-07 13:13:44.874725
> >> >> 7f5903f7a700 -1 log_channel(cluster) log [ERR] : repair 3.d8
> >> >> ee6dc2d8/rbd_data.e7592ae8944a.0000000000000833/head//3 on disk data
> >> >> digest 0x63ab49d0 != 0x68778496 2015-08-07 13:14:19.378582
> >> >> 7f5903f7a700 -1 log_channel(cluster) log [ERR] : repair 3.d8
> >> >> d93e14d8/rbd_data.3ef8442ae8944a.0000000000000729/head//3 on disk data
> >> >> digest 0x3cdb1f5c != 0x4e0400c2 2015-08-07 13:23:38.668080
> >> >> 7f5903f7a700 -1 log_channel(cluster) log [ERR] : 3.d8 repair 4 errors,
> >> >> 0 fixed 2015-08-07 13:23:38.714668 7f5903f7a700 0 log_channel(cluster)
> >> >> log [INF] : 3.d8 deep-scrub starts 2015-08-07 13:25:00.656306
> >> >> 7f5903f7a700 -1 log_channel(cluster) log [ERR] : deep-scrub 3.d8
> >> >> cbd2d0d8/rbd_data.6a5cf474b0dc51.0000000000000b1f/head//3 on disk data
> >> >> digest 0x6e4d80bf != 0x6fb5b103 2015-08-07 13:26:18.775362
> >> >> 7f5903f7a700 -1 log_channel(cluster) log [ERR] : deep-scrub 3.d8
> >> >> b5892d8/rbd_data.dbe674b0dc51.00000000000001b9/head//3 on disk data
> >> >> digest 0x79082779 != 0x9f102f3d 2015-08-07 13:26:42.084218
> >> >> 7f5903f7a700 -1 log_channel(cluster) log [ERR] : deep-scrub 3.d8
> >> >> ee6dc2d8/rbd_data.e7592ae8944a.0000000000000833/head//3 on disk data
> >> >> digest 0x59a6e7e0 != 0x68778496 2015-08-07 13:26:56.495207
> >> >
> >> > This indicates the stored crc doesn't match the observed crc,
> >> > and
> >> >
> >> >> 7f5903f7a700 -1 log_channel(cluster) log [ERR] : be_compare_scrubmaps:
> >> >> 3.d8 shard 1: soid
> >> >> cc49f2d8/rbd_data.3ef8442ae8944a.0000000000000aff/head//3 data_digest
> >> >> 0x4e20a792 != known data_digest 0xc0e9b2d2 from auth shard 7
> >> >
> >> > this indicates two replicas do not match.
> >> >
> >> >> 2015-08-07 13:27:12.134765 7f5903f7a700 -1 log_channel(cluster) log
> >> >> [ERR] : deep-scrub 3.d8
> >> >> d93e14d8/rbd_data.3ef8442ae8944a.0000000000000729/head//3 on disk data
> >> >> digest 0x3cdb1f5c != 0x4e0400c2
> >> >>
> >> >> osd.7.log is clean for that period of time.
> >> >> /var/log/dmesg is also clean.
> >> >
> >> > This really shouldn't happen, but there has been one recently fixed bug
> >> > that could have corrupted a replica.  Can you locate two mismatched copies
> >> > of some object on two different OSDs, and use ceph-post-file so that we
> >> > can take a look at the actual corruption?  For this PG, for example, the
> >> > mismatched copies are on osd.1 and osd.7.  On those hosts, you can find
> >> > the backing file with
> >> >
> >> >  find /var/lib/ceph/osd/ceph-1/current/3.d8_head | grep rbd_data.3ef8442ae8944a.0000000000000aff
> >> >
> >> > Alternatively, if the data is sensitive, can you diff the hexdump -C
> >> > output of both files, see what the differing bytes look like, and describe
> >> > that to us?
> >> >
> >> > Thanks!
> >> > sage
> >> --
> >> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
> >> the body of a message to majordomo@xxxxxxxxxxxxxxx
> >> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> >>
> >>
> --
> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 
--
To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [CEPH Users]     [Ceph Large]     [Information on CEPH]     [Linux BTRFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux