[Gluster-users] posix: mknod on .. failed: File exists

[Michael Reck]

Hi List,

Sorry for the crude english !

we have an 3 Nodes gluster Installation.
Since start of this gluster we have problems like this:

[2010-12-10 07:14:57.210627] E [posix.c:437:posix_lookup] posix: lstat 
on /backup/mail8-node2/yesteryesterday_root.tgz failed: No data available
[2010-12-10 08:14:57.778585] E [posix.c:1084:posix_mknod] posix: mknod 
on /backup/mysql2/yesterday_root.tgz failed: File exists
[2010-12-10 08:14:57.813334] E [posix.c:437:posix_lookup] posix: lstat 
on /backup/mysql2/yesterday_root.tgz failed: No data available

I read tons of old maillinglist entry's and some suggest to get the 
latest version of glusterfs.
Since 18.11.2010 we have 3.1.0 in use and the errors continues.

Sometimes the problem can be solved for an longer time if unexport and 
restart all gluster processes.

I just have no (more) idea were to search for an solution. But I guess 
that this should be an trivial Problems since others have obviously 
running gluster in production.

The Hardware was selected to be reliable ( Areca Raid6 Drives, Dual Xeon 
CPU, Server Mainboards, Server NIC`s) and has continuous data rates if 
tested with bonnie.



The Config:

----
volume posix
   type storage/posix
   option directory /raid/cluster
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 IPRANGE.*
     subvolumes brick
end-volume

---

volume remote1
   type protocol/client
   option transport-type tcp
   option remote-host IP1
   option remote-subvolume brick
end-volume

volume remote2
   type protocol/client
   option transport-type tcp
   option remote-host IP2
   option remote-subvolume brick
end-volume

volume remote3
   type protocol/client
   option transport-type tcp
   option remote-host IP3
   option remote-subvolume brick
end-volume

volume distribute
   type cluster/distribute
   option lookup-unhashed yes
   subvolumes remote1 remote2 remote3
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