Hi,
My version of Lustre is 1.8.3
My filesystem is composed of one MGS/MDS server and two OSS.
By testing, I tried to delete a OST and replace it with another OST
and now the situation is this:
cat /proc/fs/lustre/lov/lustre01-mdtlov/target_obd
0: lustre01-OST0000_UUID ACTIVE
2: lustre01-OST0002_UUID ACTIVE
- first problem
lustre01-OST0001_UUID ACTIVE is the OST was canceled and it had files,
which of course now there are not more:
ls -lrt
total 12475312
?--------- ? ? ? ? ? zero.dat
?--------- ? ? ? ? ? ubuntu-9.10-dvd-i386.iso
?--------- ? ? ? ? ? XXXXXXXXX_CentOS-5.4-
x86_64-bin-DVD.iso
?--------- ? ? ? ? ? Windows_XP-Capodarco.iso
?--------- ? ? ? ? ? UBUNTU_CentOS-5.4-
x86_64-bin-DVD.iso
?--------- ? ? ? ? ? KK_CentOS-5.4-x86_64-
bin-DVD.iso
?--------- ? ? ? ? ? FFFFF_CentOS-5.4-x86_64-
bin-DVD.iso
?--------- ? ? ? ? ? CentOS-5.3-i386-bin-
DVD.iso
?--------- ? ? ? ? ? BBBBB_CentOS-5.4-x86_64-
bin-DVD.iso
?--------- ? ? ? ? ? BAK_CentOS-5.4-x86_64-
bin-DVD.iso
?--------- ? ? ? ? ? 2.iso
I to delete them, follow these steps:
on MGS/MDS server:
e2fsck -n -v --mdsdb /root/mds_home_db /dev/mpath/mpath2
copy the file mds_home_db on OSS_1 and, one OSS_1 launch the following
command:
e2fsck -n -v --mdsdb /root/mds_home_db --ostdb /root/home_ost00db /dev/
mpath/mpath1
and do the same thing on the OSS_2:
e2fsck -n -v --mdsdb /root/mds_home_db --ostdb /root/home_ost01db /dev/
mpath/mpath2
then copy the files mds_home_db, home_ost00db and home_ost01db on the
Lustre Client,
mount the lustre filesystem and run the commnand:
lfsck -c -v --mdsdb /root/mds_home_db --ostdb /root/home_ost00db /root/
home_ost02db /LUSTRE
but the command hangs:
.
.
.
.
[0] zero-length orphan objid 1182
[0] zero-length orphan objid 1214
[0] zero-length orphan objid 1246
[0] zero-length orphan objid 1183
[0] zero-length orphan objid 1215
[0] zero-length orphan objid 1247
lfsck: ost_idx 0: pass3 OK (218 files total)
MDS: max_id 161 OST: max_id 65
lfsck: ost_idx 1: pass1: check for duplicate objects
lfsck: ost_idx 1: pass1 OK (11 files total)
lfsck: ost_idx 1: pass2: check for missing inode objects
and the server MGS/MDS go to in Kernel Panic
and the Lustre Client log say:
May 26 17:39:35 mdt02prdpom kernel: LustreError: 7105:0:(lov_ea.c:
248:lsm_unpackmd_v1()) OST index 1 missing
May 26 17:39:35 mdt02prdpom kernel: LustreError: 7105:0:(lov_ea.c:
248:lsm_unpackmd_v1()) Skipped 21 previous similar messages
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b20003, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x2
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b20005, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x3
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b20006, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x4
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b20008, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x5
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b2000a, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x6
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b2000c, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x7
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b2000e, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x8
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b20014, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x23
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b20015, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x42
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b20017, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x62
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
64:lov_dump_lmm_common()) objid 0x1b20018, magic 0x0bd10bd0, pattern 0x1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
67:lov_dump_lmm_common()) stripe_size 1048576, stripe_count 1
May 26 17:39:35 mdt02prdpom kernel: Lustre: 7105:0:(lov_pack.c:
84:lov_dump_lmm_objects()) stripe 0 idx 1 subobj 0x0/0x82
- second problem
doing tests with Quotas, when I go to run the command:
lfs quotacheck -ug /LUSTRE/
quotacheck failed: Input/output error
and the log say:
kernel: LustreError: 7103:0:(quota_check.c:251:lov_quota_check()) lov
idx 1 inactive
Thanks !!
Ing. Stefano Elmopi
Gruppo Darco - Resp. ICT Sistemi
Via Ostiense 131/L Corpo B, 00154 Roma
cell. 3466147165
tel. 0657060500
email:stefano.elm...@sociale.it
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