ceph 状态 health: HEALTH_WARN no active mgr

admin

health: HEALTH_WARN
health: HEALTH_WARN
            no active mgr
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, u9 G5 P" A6 m' h4 n( f解决：Ceph Manager Daemon，简称ceph-mgr。 该组件的主要作用是分担和扩展monitor的部分功能，减轻monitor的负担，让更好地管理ceph存储系统ceph

" C$ s7 p8 m; R, [+ `6 t4 i' Qceph在 luminous中新加入了mgr功能模块，手动安装mgr即可
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  v& A9 ~8 Q0 B/ O) _ceph-deploy  mgr  create  ceph1  ceph2 ceph3

admin

crush rule 常用命令记录



ceph osd getcrushmap -o /tmp/crush
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crushtool -d /tmp/crush -o /tmp/crush.txt
- A4 a7 F& P; w$ W2 w$ ucrushtool -c /tmp/crush.txt -o /tmp/crush.bin
ceph osd setcrushmap -i /tmp/crush.bin
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admin

ceph -s
ceph -s
  cluster:
5 h7 z- B+ o' P3 |6 d4 M. B1 C8 a4 {    id:     04f83ed1-096e-41c9-a214-5a1fa4724bc3
  ?7 B  |# M$ g! I) l    health: HEALTH_OK

& K+ k, v9 q% M5 P3 n  services:
, C  P- o0 }8 `. G2 j# q& Z    mon: 3 daemons, quorum ceph1,ceph2,ceph3
    mgr: ceph1(active), standbys: ceph2, ceph3
    osd: 3 osds: 3 up, 3 in
, |9 v( y( G  t
  data:
    pools:   0 pools, 0 pgs
1 r- A0 }7 J/ D; j    objects: 0  objects, 0 B
    usage:   3.0 GiB used, 297 GiB / 300 GiB avail
    pgs:     
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