Hi,
recently I tried to upgrade from 0.57 to 0.67.3, hit the changes
of mon protocol, and so I updated all of the 5 mons.
After upgrading the mon, (and during the debugging of other problems,)
I removed and created the mon filesystem from scratch.
OSDMap and Crushmap seems to be blown by this;
I expected at that time that they are easily recovered.
Now, I tried to recover but couldn't make osdmap remember any OSDs.
Would somebody help me, please ?
osd dump shows:
% ceph osd dump
epoch 5
fsid 6ef8e7bb-745c-4e20-8946-8808b9843380
created 2013-09-11 18:36:36.731905
modified 2013-09-12 00:53:46.375623
flags
pool 0 'data' rep size 2 min_size 1 crush_ruleset 0 object_hash rjenkins pg_num 64 pgp_num 64 last_change 1 owner 0 crash_replay_interval 45
pool 1 'metadata' rep size 2 min_size 1 crush_ruleset 1 object_hash rjenkins pg_num 64 pgp_num 64 last_change 1 owner 0
pool 2 'rbd' rep size 2 min_size 1 crush_ruleset 2 object_hash rjenkins pg_num 64 pgp_num 64 last_change 1 owner 0
max_osd 16
(nothing further)
%
It seems that crushmap is set correctly (attached in the end of this e-mail).
Although I turned off authx temporarily, I set osds in the ceph auth list
(manually by ceph auth add command).
installed auth entries:
osd.0
key: AQCMcvZQIA6XNRAAbVshyOevLfNUI0SIkVEAzQ==
caps: [mon] allow rwx
caps: [osd] allow *
osd.1
key: AQB/c/ZQKAf8OBAAIs9sHZlAjNoIn7eE2bbggg==
caps: [mon] allow rwx
caps: [osd] allow *
:
:
# ceph osd in 3
osd.3 does not exist.
# /etc/init.d/ceph -a start osd.3
=== osd.3 ===
Mounting Btrfs on host-4:/ceph/data/osd-disk
Scanning for Btrfs filesystems
Error ENOENT: osd.3 does not exist. create it before updating the crush map
Starting Ceph osd.3 on host-4...
starting osd.3 at :/0 osd_data /ceph/data/osd-disk /ceph/data/osd-journal
# /ceph/bin/ceph status
cluster 6ef8e7bb-745c-4e20-8946-8808b9843380
health HEALTH_ERR 192 pgs stuck inactive; 192 pgs stuck unclean; no osds
monmap e1: 5 mons at {0=A.B.C.D:6789/0,1=A.B.C.D:6789/0,2=A.B.C.D:6789/0,3=A.B.C.D:6789/0,4=A.B.C.D:6789/0}, election epoch 22, quorum 0,1,2,3,4 0,1,2,3,4
osdmap e5: 0 osds: 0 up, 0 in
pgmap v6: 192 pgs: 192 creating; 0 bytes data, 0 KB used, 0 KB / 0 KB avail
mdsmap e7: 1/1/1 up {0=1=up:creating}, 4 up:standby
How can I recover the osd map ?
Thanks !
Yasu
(Crushmap follows.)
# begin crush map
# devices
device 0 osd.0
device 1 osd.1
device 2 osd.2
device 3 osd.3
device 4 osd.4
device 5 osd.5
device 6 osd.6
device 7 osd.7
device 8 osd.8
device 9 osd.9
device 10 osd.10
device 11 osd.11
device 12 osd.12
device 13 osd.13
device 14 osd.14
device 15 osd.15
# types
type 0 device
type 1 host
type 2 rack
type 3 row
type 4 room
type 5 datacenter
type 6 root
# buckets
host host-1 {
id -1 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.0 weight 1.000
}
host host-2 {
id -2 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.1 weight 1.000
}
host host-3 {
id -3 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.2 weight 1.000
}
host host-4 {
id -4 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.3 weight 1.000
}
host host-5 {
id -5 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.4 weight 1.000
}
host host-6 {
id -6 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.5 weight 1.000
}
host host-7 {
id -7 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.6 weight 1.000
}
host host-8 {
id -8 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.7 weight 1.000
}
host host-9 {
id -9 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.8 weight 1.000
}
host host-10 {
id -10 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.9 weight 1.000
}
host host-11 {
id -11 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.10 weight 1.000
}
host host-12 {
id -12 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.11 weight 1.000
}
host host-13 {
id -13 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.12 weight 1.000
}
host host-14 {
id -14 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.13 weight 1.000
}
host host-15 {
id -15 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.14 weight 1.000
}
host host-16 {
id -16 # do not change unnecessarily
# weight 1.000
alg straw
hash 0 # rjenkins1
item osd.15 weight 1.000
}
rack rack0 {
id -17 # do not change unnecessarily
# weight 16.000
alg straw
hash 0 # rjenkins1
item host-1 weight 1.000
item host-2 weight 1.000
item host-3 weight 1.000
item host-4 weight 1.000
item host-5 weight 1.000
item host-6 weight 1.000
item host-7 weight 1.000
item host-8 weight 1.000
item host-9 weight 1.000
item host-10 weight 1.000
item host-11 weight 1.000
item host-12 weight 1.000
item host-13 weight 1.000
item host-14 weight 1.000
item host-15 weight 1.000
item host-16 weight 1.000
}
row row0 {
id -18 # do not change unnecessarily
# weight 16.000
alg straw
hash 0 # rjenkins1
item rack0 weight 16.000
}
room room0 {
id -19 # do not change unnecessarily
# weight 16.000
alg straw
hash 0 # rjenkins1
item row0 weight 16.000
}
datacenter datacenter0 {
id -20 # do not change unnecessarily
# weight 16.000
alg straw
hash 0 # rjenkins1
item room0 weight 16.000
}
root default {
id -21 # do not change unnecessarily
# weight 16.000
alg straw
hash 0 # rjenkins1
item datacenter0 weight 16.000
}
# rules
rule data {
ruleset 0
type replicated
min_size 1
max_size 10
step take default
step chooseleaf firstn 0 type host
step emit
}
rule metadata {
ruleset 1
type replicated
min_size 1
max_size 10
step take default
step chooseleaf firstn 0 type host
step emit
}
rule rbd {
ruleset 2
type replicated
min_size 1
max_size 10
step take default
step chooseleaf firstn 0 type host
step emit
}
# end crush map
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