CEPH中文手册（ceph基础命令）

Ceph 命令集合

一、集群

1、启动一个 ceph 进程

启动 mon 进程

service ceph start mon.node1

启动 msd 进程

service ceph start mds.node1

启动 osd 进程

service ceph start osd.0

health HEALTH_OK

monmap e2: 3 mons at

{node1=10.240.240.211:6789/0,node2=10.240.240.212:6789/0,node3=10.240.240.213:6

789/0}, election epoch 294, quorum 0,1,2 node1,node2,node3

mdsmap e95: 1/1/1 up {0=node2=up:active}, 1 up:standby

osdmap e88: 3 osds: 3 up, 3 in

pgmap v1164: 448 pgs, 4 pools, 10003 MB data, 2520 objects

23617 MB used, 37792 MB / 61410 MB avail

448 active+clean

2014-06-30 00:48:28.756948 mon.0 [INF] pgmap v1163: 448 pgs: 448 active+clean;

monmap e2: 3 mons at

{node1=10.240.240.211:6789/0,node2=10.240.240.212:6789/0,node3=10.240.240.213:6

789/0}, election epoch 294, quorum 0,1,2 node1,node2,node3

mdsmap e95: 1/1/1 up {0=node2=up:active}, 1 up:standby

osdmap e88: 3 osds: 3 up, 3 in

pgmap v1164: 448 pgs, 4 pools, 10003 MB data, 2520 objects

23617 MB used, 37792 MB / 61410 MB avail

448 active+clean

[root@client ~]#

NAME ID USED %USED OBJECTS

data 0 10000M 16.28 2500

metadata 1 3354k 0 20

rbd 2 0 0 0

jiayuan 3 0 0 0

[root@client ~]#

6、删除一个节点的所有的 ceph 数据包

[root@node1 ~]# ceph-deploy purge node1

[root@node1 ~]# ceph-deploy purgedata node1

7、为 ceph 创建一个 admin 用户并为 admin 用户创建一个密

8、为 osd.0 创建一个用户并创建一个 key

ceph auth get-or-create osd.0 mon 'allow rwx' osd 'allow *' -o

/var/lib/ceph/osd/ceph-0/keyring

9、为 mds.node1 创建一个用户并创建一个 key

ceph auth get-or-create mds.node1 mon 'allow rwx' osd 'allow *' mds 'allow *' -

o /var/lib/ceph/mds/ceph-node1/keyring

10、查看 ceph 集群中的认证用户及相关的 key

ceph auth list

11、删除集群中的一个认证用户

ceph auth del osd.0

12、查看集群的详细配置

pg 3.5 is stuck inactive since forever, current state down+peering, last acting

[1,2]

pg 3.30 is stuck inactive since forever, current state down+peering, last

acting [1,2]

pg 3.1a is stuck inactive since forever, current state down+peering, last

acting [1,0]

pg 3.2d is stuck inactive since forever, current state down+peering, last

acting [1,0]

pg 3.16 is stuck inactive since forever, current state down+peering, last

acting [1,2]

二、mon

1、查看 mon 的状态信息

[root@client ~]# ceph mon stat

e2: 3 mons at

{node1=10.240.240.211:6789/0,node2=10.240.240.212:6789/0,node3=10.240.240.213:6

789/0}, election epoch 294, quorum 0,1,2 node1,node2,node3

2、查看 mon 的选举状态

[root@client ~]# ceph quorum_status

{"election_epoch":294,"quorum":[0,1,2],"quorum_names":["node1","node2","node3"]

,"quorum_leader_name":"node1","monmap":{"epoch":2,"fsid":"be1756f2-54f7-4d8f-

dumped monmap epoch 2

epoch 2

fsid be1756f2-54f7-4d8f-8790-820c82721f17

last_changed 2014-06-26 18:43:51.671106

created 0.000000

0: 10.240.240.211:6789/0 mon.node1

1: 10.240.240.212:6789/0 mon.node2

2: 10.240.240.213:6789/0 mon.node3