[Bugs] [Bug 1565623] glusterfs disperse volume input output error

bugzilla at redhat.com bugzilla at redhat.com
Wed Apr 11 10:52:03 UTC 2018


https://bugzilla.redhat.com/show_bug.cgi?id=1565623



--- Comment #11 from Alexey Shcherbakov <alexey.shcherbakov at kaspersky.com> ---
(In reply to Xavi Hernandez from comment #10)
> All seems to indicate that a heal was happening on nodes glfs-node13.avp.ru
> and glfs-node25.avp.ru at the time of restarting node glfs-node19.avp.ru.
> Unfortunately this coincided with a modification that caused 3 simultaneous
> failures on the file.
> 
> We need to manually repair the file or recover it from a backup.
> 
> To recover the file manually we have two options:
> 
> 1. Guess which of the 3 bad fragments is "less" bad. Probably the best
> candidate would be the fragment on node glfs-node19.avp.ru, but we need to
> check it. It would be interesting to see the modification times of all
> fragments on all bricks. To do so we can execute 'stat
> /data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2'. This will help us to
> decide, but it's not a 100% secure way to determine the best option.
> 
> 2. Try to check integrity of fragments. To do this we'll need to develop a
> small tool able to do the check. It will require some time but it will tell
> us if the file is good or, if there's something bad, we'll know where the
> problem is (in which block). The advantage of this method is that unless the
> 3 bad fragments are damaged on the same block, we may be able to recover the
> whole file.

Stat command result on all nodes:

glfs-node11.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 81618486372  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.086093439 +0300
Modify: 2018-04-06 09:37:40.056093815 +0300
Change: 2018-04-10 12:05:31.442268179 +0300
 Birth: -
glfs-node12.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 77312455458  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.086927017 +0300
Modify: 2018-04-06 09:37:40.056927261 +0300
Change: 2018-04-10 12:05:31.442493868 +0300
 Birth: -
glfs-node13.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 2351140352    Blocks: 2898080    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 77309833852  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:19:41.347484000 +0300
Modify: 2018-04-06 09:37:43.501667158 +0300
Change: 2018-04-10 12:05:31.443246800 +0300
 Birth: -
glfs-node14.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 45097173507  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.085762909 +0300
Modify: 2018-04-06 09:37:40.055763093 +0300
Change: 2018-04-10 12:05:31.442878601 +0300
 Birth: -
glfs-node15.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 47297640679  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.084025418 +0300
Modify: 2018-04-06 09:37:40.054025522 +0300
Change: 2018-04-10 12:05:31.443444637 +0300
 Birth: -
glfs-node16.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 62287697396  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.084973842 +0300
Modify: 2018-04-06 09:37:40.054974225 +0300
Change: 2018-04-10 12:05:31.450825340 +0300
 Birth: -
glfs-node17.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 25769816893  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.087142929 +0300
Modify: 2018-04-06 09:37:40.057143241 +0300
Change: 2018-04-10 12:05:31.444507483 +0300
 Birth: -
glfs-node18.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 81645506748  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.085410682 +0300
Modify: 2018-04-06 09:37:40.055411031 +0300
Change: 2018-04-10 12:05:31.445081386 +0300
 Birth: -
glfs-node19.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430648    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 55834592083  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:39.000000000 +0300
Modify: 2018-04-06 09:37:39.000000000 +0300
Change: 2018-04-10 13:43:32.589505057 +0300
 Birth: -
glfs-node20.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 64483022647  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.086797717 +0300
Modify: 2018-04-06 09:37:40.056797940 +0300
Change: 2018-04-10 12:05:31.447094554 +0300
 Birth: -
glfs-node21.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430648    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 30399803420  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.084872465 +0300
Modify: 2018-04-06 09:37:40.054872712 +0300
Change: 2018-04-10 12:05:31.445816033 +0300
 Birth: -
glfs-node22.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 10740329468  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.087255449 +0300
Modify: 2018-04-06 09:37:40.057255732 +0300
Change: 2018-04-10 12:05:31.447168330 +0300
 Birth: -
glfs-node23.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 73019182467  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/ UNKNOWN)   Gid: (  107/ UNKNOWN)
Access: 2018-04-06 09:37:40.088930999 +0300
Modify: 2018-04-06 09:37:40.058931201 +0300
Change: 2018-04-10 12:05:31.449991404 +0300
 Birth: -
glfs-node24.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 3804491264    Blocks: 7430656    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 219231      Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/    qemu)   Gid: (  107/    qemu)
Access: 2018-04-06 09:37:40.087524522 +0300
Modify: 2018-04-06 09:37:40.057524854 +0300
Change: 2018-04-10 12:05:31.448713916 +0300
 Birth: -
glfs-node25.avp.ru
  File: ‘/data1/bricks/brick1/vmfs/slake-test-bck-m1-d1.qcow2’
  Size: 2351140352    Blocks: 2898080    IO Block: 4096   regular file
Device: 815h/2069d    Inode: 55834924933  Links: 2
Access: (0770/-rwxrwx---)  Uid: (  107/    qemu)   Gid: (  107/    qemu)
Access: 2018-04-06 09:19:41.347484000 +0300
Modify: 2018-04-06 09:37:43.502748628 +0300
Change: 2018-04-10 12:05:31.449630601 +0300
 Birth: -

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