[Moosefs-users] mfs access problem

[Piotr S. <pio...@gm...>]

Hello everyone!

So, I'm quite new to MooseFS, I've installed the whole system recently,
including master and chunk deamon, etc.
The problem I encountered (and can't get through) is most probably the
access/permission problem.

This is how the situation looks like :

I have 3 servers, 1 of them is VPS (what means it has no access to
/dev/fuse, nor /dev/loop), 2 are real servers having WAN ip and etc.
I decided to use VPS as mfsmaster, and the rest would be chunk servers. I
haven't got separate disks, so I used /dev/loop on chunk servers to create
500 MB ext3 file system and mounted it, as it has been described in the
manual.

# df -m
Filesystem           1M-blocks      Used Available Use% Mounted on
/data/mfsdisk              462        11       428   3% /mnt/mfschunk

Now, when I run the master server, and chunks, and on one of them I use so
called 'client' (mfsmount) and - everything works :

# df -m
/data/mfsdisk              462        11       428   3% /mnt/mfschunk
mfsmaster:9421             343         0       343   0% /mnt/mfs

except of that I can't write to /mnt/mfs. Basically I managed to touch empty
files as well as to create empty directories, but no sooner do I echo
anything to any files than it gives me an error :
No space left on the device.

Sometimes it does not say anything, for instance :

[root@chunk mfs]# touch file
[root@chunk mfs]# echo "test" >> file
[root@chunk mfs]# ls -la file
-rw-r--r-- 1 999 999 0 Jan  9 00:13 file

What I have noticed is that under /mnt/mfschunk (where the pseudo hdd is
mounted) there are lots of weird directories. Not sure if I ought to touch
them...
00  07  0E  15  1C  23  2A  31  38  3F  46  4D  54

I would very much appreciate any help in this matter.

Kind Regards,
Peter