Hello List,
first of all: Yes - i made mistakes. Now i am trying to recover :-/
I had a healthy 3 node cluster which i wanted to convert to a single one.
My goal was to reinstall a fresh 3 Node cluster and start with 2 nodes.
I was able to healthy turn it from a 3 Node Cluster to a 2 Node cluster.
Then the problems began.
I started to change size=1 and min_size=1.
Health was okay until here. Then over sudden both nodes got
fenced...one node refused to boot, mons where missing, etc...to make
long story short, here is where i am right now:
root@node03:~ # ceph -s
cluster b3be313f-d0ef-42d5-80c8-6b41380a47e3
health HEALTH_WARN
53 pgs stale
53 pgs stuck stale
monmap e4: 2 mons at {0=10.15.15.3:6789/0,1=10.15.15.2:6789/0}
election epoch 298, quorum 0,1 1,0
osdmap e6097: 14 osds: 9 up, 9 in
pgmap v93644673: 512 pgs, 1 pools, 1193 GB data, 304 kobjects
1088 GB used, 32277 GB / 33366 GB avail
459 active+clean
53 stale+active+clean
root@node03:~ # ceph osd tree
ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY
-1 32.56990 root default
-2 25.35992 host node03
0 3.57999 osd.0 up 1.00000 1.00000
5 3.62999 osd.5 up 1.00000 1.00000
6 3.62999 osd.6 up 1.00000 1.00000
7 3.62999 osd.7 up 1.00000 1.00000
8 3.62999 osd.8 up 1.00000 1.00000
19 3.62999 osd.19 up 1.00000 1.00000
20 3.62999 osd.20 up 1.00000 1.00000
-3 7.20998 host node02
3 3.62999 osd.3 up 1.00000 1.00000
4 3.57999 osd.4 up 1.00000 1.00000
1 0 osd.1 down 0 1.00000
9 0 osd.9 down 0 1.00000
10 0 osd.10 down 0 1.00000
17 0 osd.17 down 0 1.00000
18 0 osd.18 down 0 1.00000
my main mistakes seemd to be:
--------------------------------
ceph osd out osd.1
ceph auth del osd.1
systemctl stop ceph-osd@1
ceph osd rm 1
umount /var/lib/ceph/osd/ceph-1
ceph osd crush remove osd.1
As far as i can tell, ceph waits and needs data from that OSD.1 (which
i removed)
root@node03:~ # ceph health detail
HEALTH_WARN 53 pgs stale; 53 pgs stuck stale
pg 0.1a6 is stuck stale for 5086.552795, current state
stale+active+clean, last acting [1]
pg 0.142 is stuck stale for 5086.552784, current state
stale+active+clean, last acting [1]
pg 0.1e is stuck stale for 5086.552820, current state
stale+active+clean, last acting [1]
pg 0.e0 is stuck stale for 5086.552855, current state
stale+active+clean, last acting [1]
pg 0.1d is stuck stale for 5086.552822, current state
stale+active+clean, last acting [1]
pg 0.13c is stuck stale for 5086.552791, current state
stale+active+clean, last acting [1]
[...] SNIP [...]
pg 0.e9 is stuck stale for 5086.552955, current state
stale+active+clean, last acting [1]
pg 0.87 is stuck stale for 5086.552939, current state
stale+active+clean, last acting [1]
When i try to start ODS.1 manually, i get:
--------------------------------------------
2020-02-10 18:48:26.107444 7f9ce31dd880 0 ceph version 0.94.10
(b1e0532418e4631af01acbc0cedd426f1905f4af), process ceph-osd, pid
10210
2020-02-10 18:48:26.134417 7f9ce31dd880 0
filestore(/var/lib/ceph/osd/ceph-1) backend xfs (magic 0x58465342)
2020-02-10 18:48:26.184202 7f9ce31dd880 0
genericfilestorebackend(/var/lib/ceph/osd/ceph-1) detect_features:
FIEMAP ioctl is supported and appears to work
2020-02-10 18:48:26.184209 7f9ce31dd880 0
genericfilestorebackend(/var/lib/ceph/osd/ceph-1) detect_features:
FIEMAP ioctl is disabled via 'filestore fiemap' config option
2020-02-10 18:48:26.184526 7f9ce31dd880 0
genericfilestorebackend(/var/lib/ceph/osd/ceph-1) detect_features:
syncfs(2) syscall fully supported (by glibc and kernel)
2020-02-10 18:48:26.184585 7f9ce31dd880 0
xfsfilestorebackend(/var/lib/ceph/osd/ceph-1) detect_feature: extsize
is disabled by conf
2020-02-10 18:48:26.309755 7f9ce31dd880 0
filestore(/var/lib/ceph/osd/ceph-1) mount: enabling WRITEAHEAD journal
mode: checkpoint is not enabled
2020-02-10 18:48:26.633926 7f9ce31dd880 1 journal _open
/var/lib/ceph/osd/ceph-1/journal fd 20: 5367660544 bytes, block size
4096 bytes, directio = 1, aio = 1
2020-02-10 18:48:26.642185 7f9ce31dd880 1 journal _open
/var/lib/ceph/osd/ceph-1/journal fd 20: 5367660544 bytes, block size
4096 bytes, directio = 1, aio = 1
2020-02-10 18:48:26.664273 7f9ce31dd880 0 <cls>
cls/hello/cls_hello.cc:271: loading cls_hello
2020-02-10 18:48:26.732154 7f9ce31dd880 0 osd.1 6002 crush map has
features 1107558400, adjusting msgr requires for clients
2020-02-10 18:48:26.732163 7f9ce31dd880 0 osd.1 6002 crush map has
features 1107558400 was 8705, adjusting msgr requires for mons
2020-02-10 18:48:26.732167 7f9ce31dd880 0 osd.1 6002 crush map has
features 1107558400, adjusting msgr requires for osds
2020-02-10 18:48:26.732179 7f9ce31dd880 0 osd.1 6002 load_pgs
2020-02-10 18:48:31.939810 7f9ce31dd880 0 osd.1 6002 load_pgs opened 53 pgs
2020-02-10 18:48:31.940546 7f9ce31dd880 -1 osd.1 6002 log_to_monitors
{default=true}
2020-02-10 18:48:31.942471 7f9ce31dd880 1 journal close
/var/lib/ceph/osd/ceph-1/journal
2020-02-10 18:48:31.969205 7f9ce31dd880 -1 ESC[0;31m ** ERROR: osd
init failed: (1) Operation not permittedESC[0m
Its mounted:
/dev/sdg1 3.7T 127G 3.6T 4% /var/lib/ceph/osd/ceph-1
Is there any way i can get the OSD.1 back in?
Thanks a lot,
mario
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