[Gluster-devel] split brain with all-zero pending matrix

[Pranith Kumar Karampuri]

Emmanuel,
   Were the bricks down at any point in time before you hit this?. Do you have any logs available that give us hints about this issue?
Is it a 1 X 2 X 2 (striped replicate) configuration?

Pranith.
----- Original Message -----
> From: "Emmanuel Dreyfus" <manu at netbsd.org>
> To: "Pranith Kumar Karampuri" <pkarampu at redhat.com>
> Cc: "Gluster Devel" <gluster-devel at nongnu.org>
> Sent: Saturday, June 22, 2013 11:19:58 PM
> Subject: Re: [Gluster-devel] split brain with all-zero pending matrix
> 
> Pranith Kumar Karampuri <pkarampu at redhat.com> wrote:
> 
> > Emmanuel,
> >    What do the extended attributes look like in the backend for this file
> > on the two bricks.
> 
> Here is it. The pending matrix does not lie, AFR attribute are full of zeros.
> 
> brick0:/manu/netbsd/usr/src/tools/gcc/obj/build/gcc/cfgbuild.o
> --> trusted.afr.gfs34-client-1
>    000   00 00 00 00 00 00 00 00 00 00 00 00                ............
> --> trusted.afr.gfs34-client-0
>    000   00 00 00 00 00 00 00 00 00 00 00 00                ............
> --> trusted.gfs34-stripe-0.stripe-coalesce
>    000   30 00                                              0.
> --> trusted.gfs34-stripe-0.stripe-index
>    000   30 00                                              0.
> --> trusted.gfs34-stripe-0.stripe-count
>    000   32 00                                              2.
> --> trusted.gfs34-stripe-0.stripe-size
>    000   31 33 31 30 37 32 00                               131072.
> --> trusted.gfid
>    000   50 be b1 e2 8b 9d 49 fd 8d fb b8 51 44 5d 14 df    P.....I....QD]..
> 
> brick1:/manu/netbsd/usr/src/tools/gcc/obj/build/gcc/cfgbuild.o
> --> trusted.afr.gfs34-client-0
>    000   00 00 00 00 00 00 00 00 00 00 00 00                ............
> --> trusted.afr.gfs34-client-1
>    000   00 00 00 00 00 00 00 00 00 00 00 00                ............
> --> trusted.gfs34-stripe-0.stripe-coalesce
>    000   30 00                                              0.
> --> trusted.gfs34-stripe-0.stripe-index
>    000   30 00                                              0.
> --> trusted.gfs34-stripe-0.stripe-count
>    000   32 00                                              2.
> --> trusted.gfs34-stripe-0.stripe-size
>    000   31 33 31 30 37 32 00                               131072.
> --> trusted.gfid
>    000   50 be b1 e2 8b 9d 49 fd 8d fb b8 51 44 5d 14 df    P.....I....QD]..
> 
> brick2:/manu/netbsd/usr/src/tools/gcc/obj/build/gcc/cfgbuild.o
> --> trusted.gfs34-stripe-0.stripe-coalesce
>    000   30 00                                              0.
> --> trusted.gfs34-stripe-0.stripe-index
>    000   31 00                                              1.
> --> trusted.gfs34-stripe-0.stripe-count
>    000   32 00                                              2.
> --> trusted.gfs34-stripe-0.stripe-size
>    000   31 33 31 30 37 32 00                               131072.
> --> trusted.afr.gfs34-client-3
>    000   00 00 00 00 00 00 00 00 00 00 00 00                ............
> --> trusted.afr.gfs34-client-2
>    000   00 00 00 00 00 00 00 00 00 00 00 00                ............
> --> trusted.gfid
>    000   50 be b1 e2 8b 9d 49 fd 8d fb b8 51 44 5d 14 df    P.....I....QD]..
> 
> 
> brick3:/manu/netbsd/usr/src/tools/gcc/obj/build/gcc/cfgbuild.o
> --> trusted.gfs34-stripe-0.stripe-coalesce
>    000   30 00                                              0.
> --> trusted.gfs34-stripe-0.stripe-index
>    000   31 00                                              1.
> --> trusted.gfs34-stripe-0.stripe-count
>    000   32 00                                              2.
> --> trusted.gfs34-stripe-0.stripe-size
>    000   31 33 31 30 37 32 00                               131072.
> --> trusted.afr.gfs34-client-3
>    000   00 00 00 00 00 00 00 00 00 00 00 00                ............
> --> trusted.afr.gfs34-client-2
>    000   00 00 00 00 00 00 00 00 00 00 00 00                ............
> --> trusted.gfid
>    000   50 be b1 e2 8b 9d 49 fd 8d fb b8 51 44 5d 14 df    P.....I....QD]..
> 
> --
> Emmanuel Dreyfus
> http://hcpnet.free.fr/pubz
> manu at netbsd.org
> 
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