cephfs部署-1-cluster

Posted 2023-01-04 yajun2019

 

1、添加镜像

所有server上执行

官方的镜像源较慢，这里使用阿里提供的yum源

[root@node2 ceph]# vim /etc/yum.repos.d/ceph.repo
[Ceph]
name=Ceph packages for $basearch
baseurl=http://mirrors.aliyun.com/ceph/rpm-jewel/el7/$basearch
enabled=1
gpgcheck=0
type=rpm-md
priority=1

[Ceph-noarch]
name=Ceph noarch packages
baseurl=http://mirrors.aliyun.com/ceph/rpm-jewel/el7/noarch
enabled=1
gpgcheck=0
type=rpm-md
priority=1

[ceph-source]
name=Ceph source packages
baseurl=http://mirrors.aliyun.com/ceph/rpm-jewel/el7/SRPMS
enabled=1
gpgcheck=0
type=rpm-md
priority=1

2、安装epel

所有server上执行

yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

3、安装ntp，确保时间同步

所有server上执行

4、免密登录

所有server上执行

（1）/etc/hosts中加入集群所有server

（2）ssh-keygen

ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
ef:3e:32:a2:c1:2d:48:7b:f5:db:16:98:f5:ff:ed:24 root@barrie
The key‘s randomart image is:
+--[ RSA 2048]----+
|                 |
|                 |
|                 |
|          .      |
|  .   . S+ .     |
| . + o .o.. .    |
|  o = . . .. .E .|
|   . o. o+o   .o.|
|    .. ..=+.   o+|
+-----------------+

（3）拷贝本地密钥至其它所有server

[root@node2 ceph]#ssh-copy-id node1

检查：ssh node1可直接登录，不需要密码

5、安装ceph

所有节点执行

[root@node2 ceph]# yum install ceph -y
[root@node2 ceph]# ceph -v
ceph version 10.2.11 (e4b061b47f07f583c92a050d9e84b1813a35671e)

 6、安装ceph-deploy

仅在ceph-deploy server(node2)上执行

[root@node2 ceph]# yum install ceph-deploy -y
[root@node2 ceph]# ceph-deploy --version
1.5.39

 

7、部署ceph cluster

仅在ceph-deploy server(node2)上执行

[root@node2 ceph]# ceph-deploy new node2    #会覆盖/etc/ceph/ceph.conf，文件中会指定monitor，只在node2上创建monitor
或
[root@node2 ceph]# ceph-deploy new node2 node1 master1   #创建三个monitor的集群，注意：不能分成三行写

 

8、修改ceph.conf

[root@node2 ceph]# vim /etc/ceph/ceph.conf             
[global]
fsid = 4c137c64-9e09-410e-aee4-c04b0f46294e
mon_initial_members = node2
mon_host = 172.16.18.22
auth_cluster_required = cephx
auth_service_required = cephx
auth_client_required = cephx

osd pool default size = 3
public network = 172.16.18.22/24

[mon]
mon allow pool delete = true

9、创建monitor

仅deploy server(node2)上执行

[root@node2 ceph]# mkdir /etc/ceph/ceph-cluster/
[root@node2 ceph]# cd /etc/ceph/
[root@node2 ceph]# cp ceph.conf ceph-cluster/
[root@node2 ceph]# cd ceph-cluster/
[root@node2 ceph]# ceph-deploy mon create-initial    # ceph-cluster目录下生成各个key文件
[root@node2 ceph]# cp /etc/ceph/ceph-cluster/ceph.client.admin.keyring /etc/ceph/

此时会生成key

10、将配置文件和key推到其它server上

仅deploy server(node2)上执行

在node1和master1上先创建/etc/ceph/目录
[root@node2 ceph]# ceph-deploy --overwrite-conf admin node1     #Pushing: /etc/ceph/ceph.conf & ceph.client.admin.keyring
[root@node2 ceph]# ceph-deploy --overwrite-conf admin master1 

备注：ceph-deploy --overwrite-conf config push node1      # Pushing: /etc/ceph/ceph.conf)

11、启动mon，并检查状态

[root@node2 ceph]# systemctl start ceph-mon@node2
[root@node2 ceph]# ceph -s
    cluster 4c137c64-9e09-410e-aee4-c04b0f46294e
     health HEALTH_ERR
            64 pgs are stuck inactive for more than 300 seconds
            64 pgs stuck inactive
            64 pgs stuck unclean
            no osds
     monmap e3: 1 mons at node2=172.16.18.22:6789/0
            election epoch 33, quorum 0 node2
     osdmap e1: 0 osds: 0 up, 0 in
            flags sortbitwise,require_jewel_osds
      pgmap v2: 64 pgs, 1 pools, 0 bytes data, 0 objects
            0 kB used, 0 kB / 0 kB avail
                  64 creating
[root@node2 ceph]#