hosts fail cephadm check ceph分布式存告警

admin

health: HEALTH_WARN
            1 hosts fail cephadm check
CEPHADM_HOST_CHECK_FAILED: 1 hosts fail cephadm check
9 y2 M7 U6 u8 }8 e5 O2 h/ \# ceph health detail
/ Y0 c2 W$ i* o7 ], c" g! p; nHEALTH_WARN 1 hosts fail cephadm check
[WRN] CEPHADM_HOST_CHECK_FAILED: 1 hosts fail cephadm check
  f3 A1 u! O4 Z# l    host gm268-1 failed check: Failed to connect to gm268-1 (gm268-1).
5 V; w5 e$ ]- K" I! @Please make sure that the host is reachable and accepts connections using the cephadm SSH key
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  M& C. Q8 W. n% S& }To add the cephadm SSH key to the host:
$ w  b# l( [: k- A/ a0 i> ceph cephadm get-pub-key > ~/ceph.pub
> ssh-copy-id -f -i ~/ceph.pub root@gm268-1

To check that the host is reachable:
> ceph cephadm get-ssh-config > ssh_config
> ceph config-key get mgr/cephadm/ssh_identity_key > ~/cephadm_private_key
> chmod 0600 ~/cephadm_private_key
> ssh -F ssh_config -i ~/cephadm_private_key root@gm268-1
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admin

[root@gm268-5 ~]# ceph cephadm check-host gm268-1
podman|docker (/usr/bin/podman) is present
- N7 y" z" K) t/ R$ [systemctl is present
0 Y3 G3 v0 I  w& U6 l1 t; slvcreate is present
* u# l0 Q# E6 ~8 cUnit chronyd.service is enabled and running
Hostname "gm268-1" matches what is expected.
, m, p: `6 W9 mHost looks OK
9 P5 j# ^0 c% {1 ^/ Agm268-1 (None) ok
- ^7 m' x+ v* Z$ [6 i; g2 ~[root@gm268-5 ~]# ceph cephadm check-host gm268-2
podman|docker (/usr/bin/podman) is present
systemctl is present
lvcreate is present
8 J- ]+ ?2 Y$ L( y% F2 C4 n) EUnit chronyd.service is enabled and running
Hostname "gm268-2" matches what is expected.
Host looks OK
  A! G  w. m7 r, S0 M% Ygm268-2 (None) ok
/ Z# |9 J9 J3 l# q$ L[root@gm268-5 ~]# ceph cephadm check-host gm268-3
podman|docker (/usr/bin/podman) is present
0 r7 }! P) `7 I: rsystemctl is present
6 o" l7 Q' k# h: l: w9 \$ vlvcreate is present
Unit chronyd.service is enabled and running
8 I0 }: ]% l" r0 ?( z2 PHostname "gm268-3" matches what is expected.
Host looks OK
1 s6 ?1 _& y$ {4 ~* u3 sgm268-3 (None) ok
* z( y' q  k* @/ X2 ~" {

admin

[root@gm268-1 lib64]# ceph -s
6 Q5 f/ r2 J1 H4 i, K# s- d1 Z  cluster:
! {% r0 _" H, i) n( f) _: Y9 w- p    id:     ce68aab8-8f46-11ed-88c0-ac1f6b3a30b9
    health: HEALTH_OK

  services:
    mon: 3 daemons, quorum gm268-1,gm268-2,gm268-3 (age 11m)
( t* J: M, v. A5 Z7 x    mgr: gm268-2.zttohs(active, since 3w), standbys: gm268-3.sjagqo, gm268-1.jgdvxs
    mds: cephfs:1 {0=cephfs.gm268-2.xdsdoz=up:active} 2 up:standby
7 j% d; t, b, o" f! j    osd: 41 osds: 41 up (since 10m), 41 in (since 2w); 1008 remapped pgs
) R7 `, I2 W  S/ @8 X, \
  data:
' r( I8 U5 c; |- g9 l    pools:   3 pools, 9217 pgs
$ ~* q; E, j  Y    objects: 10.14M objects, 14 TiB
    usage:   28 TiB used, 569 TiB / 597 TiB avail
* j" p! {. l$ B9 K    pgs:     1026683/20286478 objects misplaced (5.061%)
             8207 active+clean
" [$ T, A# U) l4 b! ~             958  active+remapped+backfill_wait
             52   active+remapped+backfilling

) W% A( N: U$ d1 M4 ~7 h0 Q  ?1 {  io:
    recovery: 735 MiB/s, 14 keys/s, 484 objects/s
7 Y) ]: Y; p" B
5 |: U) b# Z+ h[root@gm268-1 lib64]# ceph cephadm check-host gm268-1
podman|docker (/usr/bin/podman) is present
# l# {7 w: p  ssystemctl is present
6 Z3 I# |6 Z* B* ?" B$ S/ T$ l6 Ilvcreate is present
Unit chronyd.service is enabled and running
5 P% ~4 d" n# HHostname "gm268-1" matches what is expected.
Host looks OK
gm268-1 (None) ok