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

[ABHISHEK PALIWAL]

Hi Anuradha,

Please find the glusterfs and glusterd logs directory as an attachment.

Regards,
Abhishek



On Wed, Mar 9, 2016 at 5:54 PM, ABHISHEK PALIWAL <abhishpaliwal at gmail.com>
wrote:

> 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.
>>
>
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