glusterfs and Alfresco DMS

[muslim.adel at gmail.com (Muslim Adel Abu Taha)]

 Dear all,

I've 4 servers with 2 TB HD each. I've configured gluster to distribute data
between 2 and replicate 2, example:

storage01 ---[distribution]---> storage03

storage01 ---[replication]---> storage02

storage03 ---[replication]---> storage04

And everything is working perfectly fine for more than one month. But
currently I'm facing a problem when I tried to install Alfresco DMS (
http://www.alfresco.com/).

Alfresco is a java-based Document Management System (running over tomcat).
When I installed it in the local filesystem, it works fine.
It also work great if I install it in an NFS share.

But when I install it in the glusterfs, it just don't work and the log file
show a lot of exceptions talking about IO, NIO.

I need help to fix this, because the main use of glusterFS was to use
Alfresco. (The company has huge amount of documents that need to be
archived).

Note: I've attached the server/client configuration files.

Thanks & Regards,
-------------- next part --------------
volume posix
  type storage/posix
  option directory /storage
end-volume

volume locks
  type features/locks
  subvolumes posix
end-volume

volume brick
  type performance/io-threads
  option thread-count 8
  subvolumes locks
end-volume

volume server
  type protocol/server
  option transport-type tcp
  option auth.addr.brick.allow 192.168.1.*
  subvolumes brick
end-volume
-------------- next part --------------
volume remote1
  type protocol/client
  option transport-type tcp
  option remote-host storage01
  option remote-subvolume brick
end-volume

volume remote2
  type protocol/client
  option transport-type tcp
  option remote-host storage02
  option remote-subvolume brick
end-volume

volume remote3
  type protocol/client
  option transport-type tcp
  option remote-host storage03
  option remote-subvolume brick
end-volume

volume remote4
  type protocol/client
  option transport-type tcp
  option remote-host storage04
  option remote-subvolume brick
end-volume

volume replicate1
  type cluster/replicate
  subvolumes remote1 remote2
end-volume

volume replicate2
  type cluster/replicate
  subvolumes remote3 remote4
end-volume

volume distribute
  type cluster/distribute
  subvolumes replicate1 replicate2
end-volume

volume writebehind
  type performance/write-behind
  option window-size 1MB
  subvolumes distribute
end-volume

volume cache
  type performance/io-cache
  option cache-size 512MB
  subvolumes writebehind
end-volume