What does the MDS log when it crashes?
Zitat von nguyenvandiep@xxxxxxxxxxxxxx:
We have 6 node ( 3 OSD-node and 3 service node), t2/3 OSD nodes was
powered off and we got big problem
pls check ceph-s result below
now we cannot start mds service, ( we tried to start but it stopped
after 2 minute)
Now my application cannot access to NFS exported Folder
What should we do
[root@cephgw01 /]# ceph -s
cluster:
id: 258af72a-cff3-11eb-a261-d4f5ef25154c
health: HEALTH_WARN
3 failed cephadm daemon(s)
1 filesystem is degraded
insufficient standby MDS daemons available
1 nearfull osd(s)
Low space hindering backfill (add storage if this
doesn't resolve itself): 21 pgs backfill_toofull
15 pool(s) nearfull
11 daemons have recently crashed
services:
mon: 6 daemons, quorum
cephgw03,cephosd01,cephgw01,cephosd03,cephgw02,cephosd02 (age 30h)
mgr: cephgw01.vwoffq(active, since 17h), standbys:
cephgw02.nauphz, cephgw03.aipvii
mds: 1/1 daemons up
osd: 29 osds: 29 up (since 40h), 29 in (since 29h); 402
remapped pgs
rgw: 2 daemons active (2 hosts, 1 zones)
tcmu-runner: 18 daemons active (2 hosts)
data:
volumes: 0/1 healthy, 1 recovering
pools: 15 pools, 1457 pgs
objects: 36.87M objects, 25 TiB
usage: 75 TiB used, 41 TiB / 116 TiB avail
pgs: 17759672/110607480 objects misplaced (16.056%)
1055 active+clean
363 active+remapped+backfill_wait
18 active+remapped+backfilling
14 active+remapped+backfill_toofull
7 active+remapped+backfill_wait+backfill_toofull
io:
client: 2.0 MiB/s rd, 395 KiB/s wr, 73 op/s rd, 19 op/s wr
recovery: 32 MiB/s, 45 objects/s
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