[Gluster-users] Replication destroying file content on Node crash

[Kelvin Westlake]

Hi Guys

I've got 2 servers with a volume replicated between them, and each has a
Client connected for the volume. Everything works fine while both
servers remain up, I can copy files between them and it works
flawlessly, the same occurs if I take one of the servers offline (i.e.
simulating a crash), but the moment I bring the server back up, any new
files (i.e. only on the live server) become inaccessible (If I edit it,
I get "Input/Output error" and the following appears in the Gluster
client logs -

	[2010-04-12 00:05:27] E
[afr-self-heal-common.c:1237:sh_missing_entries_create] mirror-0:
unknown file type: 01
	[2010-04-12 00:05:27] W [fuse-bridge.c:858:fuse_fd_cbk]
glusterfs-fuse: 168144: OPEN() /test2 => -1 (Input/output error)

I've also tried firing off a resync with "ls -lR" but this seems to have
no effect.

Here are the vol files I'm using, I even tried disabling the
stat-prefetch in the client as suggest here
(http://gluster.org/pipermail/gluster-users/2009-December/003636.html),
but still no joy 

Server 1 - 192.168.100.29

## file auto generated by /usr/local/bin/glusterfs-volgen (export.vol)
# Cmd line:
# $ /usr/local/bin/glusterfs-volgen --name cluster3 --raid 1
192.168.100.31:/glusterfs/home 192.168.100.29:/glusterfs/home

volume posix1
  type storage/posix
  option directory /glusterfs/home
end-volume

volume locks1
    type features/locks
    subvolumes posix1
end-volume

volume brick1
    type performance/io-threads
    option thread-count 8
    subvolumes locks1
end-volume

volume server-tcp
    type protocol/server
    option transport-type tcp
    option auth.addr.brick1.allow *
    option transport.socket.listen-port 6996
    option transport.socket.nodelay on
    subvolumes brick1
end-volume

Server 2 - 192.168.100.31

## file auto generated by /usr/local/bin/glusterfs-volgen (export.vol)
# Cmd line:
# $ /usr/local/bin/glusterfs-volgen --name cluster3 --raid 1
192.168.100.31:/glusterfs/home 192.168.100.29:/glusterfs/home

volume posix1
  type storage/posix
  option directory /glusterfs/home
end-volume

volume locks1
    type features/locks
    subvolumes posix1
end-volume

volume brick1
    type performance/io-threads
    option thread-count 8
    subvolumes locks1
end-volume

volume server-tcp
    type protocol/server
    option transport-type tcp
    option auth.addr.brick1.allow *
    option transport.socket.listen-port 6996
    option transport.socket.nodelay on
    subvolumes brick1
end-volume

Client vol file, mount on both servers to /glusterfs/home-mnt

## file auto generated by /usr/local/bin/glusterfs-volgen (mount.vol)
# Cmd line:
# $ /usr/local/bin/glusterfs-volgen --name cluster3 --raid 1
192.168.100.31:/glusterfs/home 192.168.100.29:/glusterfs/home

# RAID 1
# TRANSPORT-TYPE tcp
volume 192.168.100.31-1
    type protocol/client
    option transport-type tcp
    option remote-host 192.168.100.31
    option transport.socket.nodelay on
    option transport.remote-port 6996
    option remote-subvolume brick1
end-volume

volume 192.168.100.29-1
    type protocol/client
    option transport-type tcp
    option remote-host 192.168.100.29
    option transport.socket.nodelay on
    option transport.remote-port 6996
    option remote-subvolume brick1
end-volume

volume mirror-0
    type cluster/replicate
    subvolumes 192.168.100.31-1 192.168.100.29-1
end-volume

volume writebehind
    type performance/write-behind
    option cache-size 4MB
    subvolumes mirror-0
end-volume

volume readahead
    type performance/read-ahead
    option page-count 4
    subvolumes writebehind
end-volume

volume iocache
    type performance/io-cache
    option cache-size `echo $[ $(grep 'MemTotal' /proc/meminfo | sed
's/[^0-9]//g') / 5120 ]`MB
    option cache-timeout 1
    subvolumes readahead
end-volume

volume quickread
    type performance/quick-read
    option cache-timeout 1
    option max-file-size 64kB
    subvolumes iocache
end-volume

#volume statprefetch
#    type performance/stat-prefetch
#    subvolumes quickread
#end-volume

Any help or advise would be greatly appreciated.


Thanks
Kelvin

 
 
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