ceph 状态 health: HEALTH_WARN no active mgr

admin

health: HEALTH_WARN
health: HEALTH_WARN
7 X" W2 V9 M' N& Z0 N            no active mgr

; s. J! G8 ^. s( C, }' g6 y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
" O' k! N/ R# a
ceph在 luminous中新加入了mgr功能模块，手动安装mgr即可

ceph-deploy  mgr  create  ceph1  ceph2 ceph3

admin

crush rule 常用命令记录

# v: e7 M+ W, p; ~; Y
+ n$ Z9 G: \8 b9 W4 y, E
ceph osd getcrushmap -o /tmp/crush
" A- N+ y( b  B! H9 R" ]. x6 T: ^

. H" J9 o1 }+ wcrushtool -d /tmp/crush -o /tmp/crush.txt
crushtool -c /tmp/crush.txt -o /tmp/crush.bin
6 v2 L; S5 J) q# {% g2 F3 P5 lceph osd setcrushmap -i /tmp/crush.bin

admin

ceph -s
ceph -s
. B/ W; P; N7 n9 `- f- U, X% o# g0 n  cluster:
5 w+ s; ?- R, W( o6 \    id:     04f83ed1-096e-41c9-a214-5a1fa4724bc3
- `+ r" y: o9 B# i) j    health: HEALTH_OK
2 p5 _0 @9 P$ \/ f$ E* ^* V6 F
  services:
    mon: 3 daemons, quorum ceph1,ceph2,ceph3
    mgr: ceph1(active), standbys: ceph2, ceph3
' F$ b# ?* l; L' |( Q0 _0 K    osd: 3 osds: 3 up, 3 in

# o( M! w, z  H- N& p$ m& X  data:
3 z/ [1 [$ Y% p, ^7 G0 E% K    pools:   0 pools, 0 pgs
, s% j+ g; h# }2 T: w. {$ d; U, X7 l    objects: 0  objects, 0 B
" ~5 n- f7 e" O    usage:   3.0 GiB used, 297 GiB / 300 GiB avail
( w8 p0 ?3 Y8 `$ d. i( s    pgs: