Please note that I just started to use gluster recently ...
I have a replicated gluster installation: two servers with six bricks
each, and I have a total of 14TB of data under a single "replica 2"
volume.
After replacing an hard disk and doing something wrong in the process,
I decided to delete and recreate the volume with the very same bricks
and this apparently worked so that no data were lost (I followed the
few steps required to rebuild a volume from previously used bricks),
but now I've a strange behaviour:
if I know the full path of a file, I can access it via the gluster
mount point, but neither "ls" or "find" is working. I.e.: (Note:
/ao-data is the glusterfs mount point) I can see with ls a file if I
know the full path:
[root@aostore1 glusterfs]# ls -l /ao-data/lbtdata/adsecdx/aolog/AOARB.R.log
-rw-r--r--. 1 archiver archiver 182678 13 apr 2015
/ao-data/lbtdata/adsecdx/aolog/AOARB.R.log
but if I try to list the directory containing that file, or any
ancestor directory:
[root@aostore1 glusterfs]# ls -l /ao-data/lbtdata/adsecdx/aolog/
total 0
[root@aostore1 glusterfs]# ls -al /ao-data/lbtdata/adsecdx
total 0
[root@aostore1 glusterfs]# ls -al /ao-data/lbtdata
total 0
[root@aostore1 glusterfs]# ls -al /ao-data
total 124
drwxr-xr-x. 7 root root 24576 17 ott 14.59 .
drwxr-xr-x. 21 root root 4096 17 ott 15.05 ..
drwxr-xr-x. 8 root root 24576 12 ott 13.42 lbtdata
drwxr-xr-x. 3 root root 24576 16 set 14.10 misc
drwxrwxr-x. 8 archiver archiver 24576 14 ott 03.59 simul_backup
drwxr-xr-x. 3 root root 24576 17 ott 14.59 .trashcan
As shown by the last command, the three topmost directories are
listed, but that's all. They, too, are apparently empty.
I tried to force healing, to do rebalance, with no success. The only
effect of rebalance was many error lines in file
ao-data-rebalance.log, like the following:
[2015-10-19 22:29:55.134097] E [MSGID: 109010]
[dht-rebalance.c:1950:gf_defrag_get_entry] 0-ao-data-dht:
/simul_backup/data3 gfid not present
This is clearly due to my naive approach, but I'd be grateful for any
hint on how to restore the proper functioning.
Cheers,
l.f.
--
Luca Fini. INAF - Osservatorio Astrofisico di Arcetri
L.go E.Fermi, 5. 50125 Firenze. Italy
Tel: +39 055 2752 307 Fax: +39 055 2752 292
Skype: l.fini
Web: http://www.arcetri.inaf.it/~lfini
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