These errors are appearing in the file /var/log/glusterfs/<mountpoint>.log

[2011-01-26 11:02:10.342349] I [afr-common.c:672:afr_lookup_done] 
pfs-ro1-replicate-5: split brain detected during lookup of /.
[2011-01-26 11:02:10.342366] I [afr-common.c:716:afr_lookup_done] 
pfs-ro1-replicate-5: background  meta-data data self-heal triggered. path: /
[2011-01-26 11:02:10.342502] E 
[afr-self-heal-metadata.c:524:afr_sh_metadata_fix] pfs-ro1-replicate-2: Unable 
to self-heal permissions/ownership of '/' (possible split-brain). Please fix 
the file on all backend volumes

Apparently the issue is the root of the storage pool, which in my case on the 
backend storage servers is this path:

/export/read-only - permissions are:            drwxr-xr-x 12 root root 4096 
Dec 28 12:09 /export/read-only/

Installation is GlusterFS 3.1.1 on servers and clients, servers running CentOS 
5.5, clients running CentOS 5.2.

The volume info header is below:

Volume Name: pfs-ro1
Type: Distributed-Replicate
Status: Started
Number of Bricks: 10 x 2 = 20
Transport-type: tcp

Any ideas? I don't see a permission issue on the directory or it's subs 
themselves.

James Burnash, Unix Engineering


-----Original Message-----
From: gluster-users-boun...@gluster.org 
[mailto:gluster-users-boun...@gluster.org] On Behalf Of Jeff Darcy
Sent: Tuesday, January 25, 2011 10:45 AM
To: gluster-users@gluster.org
Subject: Re: [Gluster-users] Guideline needed for a xlator project

On 01/25/2011 09:09 AM, Jeff Darcy wrote:
> I've attached a copy of a document I wrote a while ago when I started
> writing translators myself.

Grrr, looks like the mailing-list software stripped it.  It's also at
http://cloudfs.org/docs/ if anybody's interested.
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