[Gluster-devel] glusterfs and email store problem.

[jeff at bofus.org]

I am hoping someone can shed some light on this issue for me.

version info first:

server OS:    CentOS release 4.5 (Final)
fuse:    fuse-2.7.0-glfs5
glusterfs:   glusterfs-1.3.7

client OS:   CentOS release 4.5 (Final)
fuse:    fuse-2.7.0-glfs5
glusterfs:   glusterfs-1.3.7

Mount:
glusterfs on /mnt/glusterfs type fuse 
(rw,nosuid,nodev,allow_other,default_permissions,max_read=1048576)

Configuration contents listed below issue.

Issue:
Looking at the logs on my mail (dovecot) server, I see the following errors:
mmap() failed with index file 
/opt/GFS/postfix/vmail/jeff at bofus.org/.Trash/.imap.index: No such device
mmap() failed with custom flags file 
/opt/GFS/postfix/vmail/jeff at bofus.org/.Trash/.customflags: No such device

These of course are on the gluster mount, and the files really do exist:
-rw-------  1 vmail vmail 6816 Nov  5 21:07 
/opt/GFS/postfix/vmail/jeff at bofus.org/.Trash/.imap.index
-rw-------  1 vmail vmail 100 Oct 15 14:11 
/opt/GFS/postfix/vmail/jeff at bofus.org/.Trash/.customflags

I was not using posix-locks at first and this same type issue came up 
but with the .subscription file.  I am not sure whether including 
posix-locks or the restart/remount required to enable it fixed this 
issue for the .subscription file.

This does not happen when I use a plain ext3 local disk mountpoint.  
Only on glusterfs mountpoint.
Does anyone know why the files say "No such device" when they are 
clearly there on the filesystem?

Thanks for any assistance!

-Jeff Humes





#################################
# server config:
volume knworksmail
  type storage/posix
  option directory /glusterfs/knworksmail
end-volume

volume posix-locks-knworksmail
 type features/posix-locks
 option mandatory on
 subvolumes knworksmail
end-volume

volume server
  type protocol/server
  option transport-type tcp/server
  subvolumes posix-locks-knworksmail
  option auth.ip.knworksmail.allow *
  option auth.ip.posix-locks-knworksmail.allow *
end-volume

volume writebehind
  type performance/write-behind
  option aggregate-size 1MB
  option flush-behind on     
  subvolumes knworksmail
end-volume

#################################
# client config:
volume gluster01
  type protocol/client
  option transport-type tcp/client
  option remote-host 10.1.2.226
  #option remote-subvolume knworksmail
  option remote-subvolume posix-locks-knworksmail
end-volume

volume writebehind
  type performance/write-behind
  option aggregate-size 131072
  subvolumes gluster01
end-volume