[Gluster-users] gluster volume heal info split brain command not showing files in split-brain

[ABHISHEK PALIWAL]

Hi Anuradha,

Sorry for late reply.

Please find the requested logs below:

Remote: 10.32.0.48
Local : 10.32.1.144

Local:
#gluster volume heal c_glusterfs info split-brain
Brick 10.32.1.144:/opt/lvmdir/c2/brick
Number of entries in split-brain: 0

Brick 10.32.0.48:/opt/lvmdir/c2/brick
Number of entries in split-brain: 0

Remote:
#gluster volume heal c_glusterfs info split-brain
Brick 10.32.1.144:/opt/lvmdir/c2/brick
Number of entries in split-brain: 0

Brick 10.32.0.48:/opt/lvmdir/c2/brick
Number of entries in split-brain: 0

auto-sync.sh.
Here you can see that i/o error is detected. Below is the required meta
data from both the bricks.

1)
stat: cannot stat '/mnt/c//public_html/cello/ior_files/nameroot.ior':
Input/output error
Remote:

getfattr -d -m . -e hex
opt/lvmdir/c2/brick/public_html/cello/ior_files/nameroot.ior
# file: opt/lvmdir/c2/brick/public_html/cello/ior_files/nameroot.ior
trusted.afr.dirty=0x000000000000000000000000
trusted.bit-rot.version=0x000000000000000256ded2f6000ad80f
trusted.gfid=0x771221a7bb3c4f1aade40ce9e38a95ee

Local:

getfattr -d -m . -e hex
opt/lvmdir/c2/brick/public_html/cello/ior_files/nameroot.ior
# file: opt/lvmdir/c2/brick/public_html/cello/ior_files/nameroot.ior
trusted.bit-rot.version=0x000000000000000256ded38f000e3a51
trusted.gfid=0x8ea33f46703c4e2d95c09153c1b858fd


2)
stat: cannot stat '/mnt/c//security/corbasecurity': Input/output error
Remote:

getfattr -d -m . -e hex opt/lvmdir/c2/brick/security/corbasecurity
# file: opt/lvmdir/c2/brick/security/corbasecurity
trusted.afr.dirty=0x000000000000000000000000
trusted.bit-rot.version=0x000000000000000256ded2f6000ad80f
trusted.gfid=0xd298b7a0c8834f3e99abb39741363013

Local:

getfattr -d -m . -e hex opt/lvmdir/c2/brick/security/corbasecurity
# file: opt/lvmdir/c2/brick/security/corbasecurity
trusted.bit-rot.version=0x000000000000000256ded38f000e3a51
trusted.gfid=0x890df0f706184b52803fac3242a2f15b

I observed that getfattr command output doesn't show all the fields all the
times.

Here you can check that gluster split-brain command hasn't reported any
split-brains but resulted in IO errors when accessed few files.

Could you please tell me if "split-brain" command doesn't reported any
entry as output, then is there any way through which we can find out that
the files are in split-brain if we are getting the IO error on those file.


Regards,
Abhishek



On Thu, Mar 3, 2016 at 5:32 PM, Anuradha Talur <atalur at redhat.com> wrote:

>
>
> ----- Original Message -----
> > From: "ABHISHEK PALIWAL" <abhishpaliwal at gmail.com>
> > To: gluster-users at gluster.org, gluster-devel at gluster.org
> > Sent: Thursday, March 3, 2016 12:10:42 PM
> > Subject: [Gluster-users] gluster volume heal info split brain command
> not     showing files in split-brain
> >
> >
> > Hello,
> >
> > In gluster, we use the command "gluster volume heal c_glusterfs info
> > split-brain" to find the files that are in split-brain scenario.
> > We run heal script (developed by Windriver prime team) on the files
> reported
> > by above command to resolve split-brain issue.
> >
> > But we observed that the above command is not showing all files that are
> in
> > split-brain,
> > even though split brain scenario actually exists on the node.
> >
> > Now a days this issue is seen more often and IO errors are reported when
> > tried to access these files under split-brain.
> >
> > Can you please check why this gluster command is not showing files under
> > split-brain?
> > We can provide you required logs and support to resolve this issue.
> Hi,
>
> Could you paste the output of getfattr -m. -de hex
> <path-to-files-in-split-brain> from all the bricks that the files lie in?
>
> >
> > Please reply on this because I am not getting any reply from the
> community.
> >
> > --
> >
> > Regards
> > Abhishek Paliwal
> >
> > _______________________________________________
> > Gluster-users mailing list
> > Gluster-users at gluster.org
> > http://www.gluster.org/mailman/listinfo/gluster-users
>
> --
> Thanks,
> Anuradha.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20160309/8fb9b199/attachment.html>