[Moosefs-users] how to fix unavailabe chunk ??

[kuer ku <ku...@gm...>]

Hi, all,

I setup a moosefs storage with 1 metaserver + 4 chunkserver.

today I found some error messages on http interface : there are some files
lost.

currently unavailable chunk 000000000000D710 (inode: 331 ; index: 0)
* currently unavailable file 331:
sink/fifodata/00126/20100604/00126_20100604164805



On box where mfsmount, when executing 'ls' command, it shows :

-rw-rw-rw-  1 sea  sea  2778996  6  4 17:32 00126_20100604164805

There is a system reboot occurs on 06/04 17:32; it is the last time when
file was written.

Now, at present, I can list it, but I cannot cat content of the files.
Moreover, when you cat this file, the command would hang.

I can find some error message in /var/log/messages :

Jun  5 17:51:26 nbase07 mfsmount[6625]: file: 331, index: 0, chunk: 55056,
version: 2 - there are no valid copies
Jun  5 17:51:26 nbase07 mfsmount[6625]: file: 331, index: 0 - can't connect
to proper chunkserver (try counter: 15)
Jun  5 17:52:26 nbase07 mfsmount[6625]: file: 331, index: 0, chunk: 55056,
version: 2 - there are no valid copies
Jun  5 17:52:26 nbase07 mfsmount[6625]: file: 331, index: 0 - can't connect
to proper chunkserver (try counter: 22)
Jun  5 17:53:26 nbase07 mfsmount[6625]: file: 331, index: 0, chunk: 55056,
version: 2 - there are no valid copies
Jun  5 17:53:26 nbase07 mfsmount[6625]: file: 331, index: 0 - can't connect
to proper chunkserver (try counter: 29)


and, the goal of the file should be 3, because I set goal of its
parent-directory is 3.


What is the problem ? how to fix it ??


My environment :

metaserver  :  moosefs 1.6.13 build on CentOS 5.3 x86_64
chunkserver : moosefs 1.6.13 build on CentOS 5.3 x86_64

mfsmount  :   MFS version 1.6.15  (FUSE library version: 2.7.4) on FreeBSD
6.2


thanks,

      - kuer