[Gluster-devel] 3.5.1qa4 performances

[Pranith Kumar Karampuri]

Emmanuel,
     Please give me the logs of your setup. The client and bricks logs. I need to complete some things today so I will reply to you about these things
tomorrow. Sorry for the inconvenience. Afr still does not decide files are in split-brain based on content but using the xattrs on the file, which do
suggest they are in split-brain.

Pranith.

----- Original Message -----
> From: "Emmanuel Dreyfus" <manu at netbsd.org>
> To: "Pranith Kumar Karampuri" <pkarampu at redhat.com>
> Cc: "Emmanuel Dreyfus" <manu at netbsd.org>, gluster-devel at nongnu.org
> Sent: Thursday, December 26, 2013 2:31:36 PM
> Subject: Re: [Gluster-devel] 3.5.1qa4 performances
> 
> On Thu, Dec 26, 2013 at 01:22:56AM -0500, Pranith Kumar Karampuri wrote:
> >    I am not sure they are related. Could you check in both first and second
> >    bricks for the file?. If it is not present in both the bricks the file
> >    is already deleted and we can't figure out how it reached split-brain
> >    state :-(.
> 
> > > [afr-self-heal-common.c:233:afr_sh_print_split_brain_log]
> > > 0-gfs351-replicate-0: Unable to self-heal contents of
> > > '<gfid:5024cce3-a713-4bc4-acbc-129a4f2f0a66>' (possible split-brain).
> > > Please delete the file from all but the preferred subvolume.- Pending
> > > matrix:  [ [ 0 1 ] [ 2 0 ] ]
> 
> Weird, now I find them, while I could not inthe first place. Did I miss
> them, or was it re-created afterward? (can it have the sam ehash?) Anyway:
> 
> Brick1 and brick 2 both have:
> .glusterfs/50/24//5024cce3-a713-4bc4-acbc-129a4f2f0a66
> Same trusted.gfid,
> brick1;trusted.afr.gfs351-client-0
>    000   00 00 00 00 00 00 00 00 00 00 00 00                ............
> brick1;trusted.afr.gfs351-client-1
>    000   00 00 00 01 00 00 00 00 00 00 00 00                ............
> brick2;trusted.afr.gfs351-client-0
>    000   00 00 00 02 00 00 00 00 00 00 00 00
> brick2;trusted.afr.gfs351-client-1
>    000   00 00 00 00 00 00 00 00 00 00 00 00                ............
> 
> Brick 2 also have this, without any xattr and with size set to 0:
> .glusterfs/indices/xattrop/5024cce3-a713-4bc4-acbc-129a4f2f0a66
> 
> Using inode number, I can find the culprit:
> manu/usr/src/sys/arch/i386/compile/obj/GENERIC/midway.o
> 
> md5 show the file are the same, hence this is really a false positive.
> 
> --
> Emmanuel Dreyfus
> manu at netbsd.org
>