[Moosefs-users] Clean up chunk files

[Anh K. H. <ky...@vi...>]

Hi,

I have a MFS system with two chunk disks
	* a disk with size 05 GB (mounted as /mnt/mfs_m0)
	* a disk with size 30 GB (mounted as /mnt/mfs_m1)

The MFS disk is /tmp/mfs_c0 was reported to have 1GB in size, as below:

/-------------------------------------------------------
Filesystem            Size  Used Avail Use% Mounted on
/mnt/mfs_chunk_db1_0  5.0G  4.4G  288M  94% /mnt/mfs_m0
/mnt/mfs_chunk_db1_1   30G   27G  1.2G  96% /mnt/mfs_m1
mfs#10.0.0.10:9421
                     1001M     0 1001M   0% /tmp/mfs_c0

ls /tmp/mfs_c0/

\-------------------------------------------------------

All these disks were completely free (use 0%) before I tried to write a very large file to MFS mount point. During the writing process, my program detected that disk was full and it aborted. Unfortunately, MFS server couldn't recovery from such error, and though it reported that MFS disk is free (0% used), I can't write anything to it. Moreover, any chunk disks are full: such disks contains many chunk files that aren't valid anymore.

How to recovery from such error? and How to clean up chunk files on chunk disks? How to know if any chunk files are valid for used?

Thanks for your helps.

-- 
Anh Ky Huynh