之前已详细介绍了Ceph分布式存储基础知识,下面简单记录下Centos7使用Ceph-deploy快速部署Ceph环境:
1)基本环境
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
192.168.10.220 ceph-admin(ceph-deploy) mds1、mon1(也可以将monit节点另放一台机器) 192.168.10.239 ceph-node1 osd1 192.168.10.212 ceph-node2 osd2 192.168.10.213 ceph-node3 osd3 ------------------------------------------------- 每个节点修改主机名 # hostnamectl set-hostname ceph-admin # hostnamectl set-hostname ceph-node1 # hostnamectl set-hostname ceph-node2 # hostnamectl set-hostname ceph-node3 ------------------------------------------------- 每个节点绑定主机名映射 # cat /etc/hosts 192.168.10.220 ceph-admin 192.168.10.239 ceph-node1 192.168.10.212 ceph-node2 192.168.10.213 ceph-node3 ------------------------------------------------- 每个节点确认连通性 # ping -c 3 ceph-admin # ping -c 3 ceph-node1 # ping -c 3 ceph-node2 # ping -c 3 ceph-node3 ------------------------------------------------- 每个节点关闭防火墙和selinux # systemctl stop firewalld # systemctl disable firewalld # sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config # setenforce 0 ------------------------------------------------- 每个节点安装和配置NTP(官方推荐的是集群的所有节点全部安装并配置 NTP,需要保证各节点的系统时间一致。没有自己部署ntp服务器,就在线同步NTP) # yum install ntp ntpdate ntp-doc -y # systemctl restart ntpd # systemctl status ntpd ------------------------------------------------- 每个节点准备yum源 删除默认的源,国外的比较慢 # yum clean all # mkdir /mnt/bak # mv /etc/yum.repos.d/* /mnt/bak/ 下载阿里云的base源和epel源 # wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo # wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo 添加ceph源 # vim /etc/yum.repos.d/ceph.repo [ceph] name=ceph baseurl=http: //mirrors .aliyun.com /ceph/rpm-jewel/el7/x86_64/ gpgcheck=0 priority =1 [ceph-noarch] name=cephnoarch baseurl=http: //mirrors .aliyun.com /ceph/rpm-jewel/el7/noarch/ gpgcheck=0 priority =1 [ceph- source ] name=Ceph source packages baseurl=http: //mirrors .aliyun.com /ceph/rpm-jewel/el7/SRPMS gpgcheck=0 priority=1 ------------------------------------------------------------ 每个节点创建cephuser用户,设置 sudo 权限 # useradd -d /home/cephuser -m cephuser # echo "cephuser"|passwd --stdin cephuser # echo "cephuser ALL = (root) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/cephuser # chmod 0440 /etc/sudoers.d/cephuser # sed -i s'/Defaults requiretty/#Defaults requiretty'/g /etc/sudoers 测试cephuser的 sudo 权限 # su - cephuser $ sudo su - # ------------------------------------------------------------ 配置相互间的 ssh 信任关系 现在ceph-admin节点上产生公私钥文件,然后将ceph-admin节点的. ssh 目录拷贝给其他节点 [root@ceph-admin ~] # su - cephuser [cephuser@ceph-admin ~]$ ssh -keygen -t rsa #一路回车 [cephuser@ceph-admin ~]$ cd . ssh / [cephuser@ceph-admin . ssh ]$ ls id_rsa id_rsa.pub [cephuser@ceph-admin . ssh ]$ cp id_rsa.pub authorized_keys [cephuser@ceph-admin . ssh ]$ scp -r /home/cephuser/ . ssh ceph-node1: /home/cephuser/ [cephuser@ceph-admin . ssh ]$ scp -r /home/cephuser/ . ssh ceph-node2: /home/cephuser/ [cephuser@ceph-admin . ssh ]$ scp -r /home/cephuser/ . ssh ceph-node3: /home/cephuser/ 然后在各节点直接验证cephuser用户下的 ssh 相互信任关系 $ ssh -p22 cephuser@ceph-admin $ ssh -p22 cephuser@ceph-node1 $ ssh -p22 cephuser@ceph-node2 $ ssh -p22 cephuser@ceph-node3 |
2)准备磁盘(ceph-node1、ceph-node2、ceph-node3三个节点)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
|
测试时使用的磁盘不要太小,否则后面添加磁盘时会报错,建议磁盘大小为20G及以上。 三个节点均是在WebvirtMgr上创建的虚拟机,参考:https: //www .cnblogs.com /kevingrace/p/8387999 .html 文档中创建并挂载虚拟机磁盘。 如下分别在三个节点挂载了一块20G的裸盘 检查磁盘 $ sudo fdisk -l /dev/vdb Disk /dev/vdb : 21.5 GB, 21474836480 bytes, 41943040 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical /physical ): 512 bytes / 512 bytes I /O size (minimum /optimal ): 512 bytes / 512 bytes 格式化磁盘 $ sudo parted -s /dev/vdb mklabel gpt mkpart primary xfs 0% 100% $ sudo mkfs.xfs /dev/vdb -f 查看磁盘格式(xfs格式) $ sudo blkid -o value -s TYPE /dev/vdb |
3)部署阶段(ceph-admin节点上使用ceph-deploy快速部署)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
[root@ceph-admin ~] # su - cephuser 安装ceph-deploy [cephuser@ceph-admin ~]$ sudo yum update -y && sudo yum install ceph-deploy -y 创建cluster目录 [cephuser@ceph-admin ~]$ mkdir cluster [cephuser@ceph-admin ~]$ cd cluster/ 创建集群(后面填写monit节点的主机名,这里monit节点和管理节点是同一台机器,即ceph-admin) [cephuser@ceph-admin cluster]$ ceph-deploy new ceph-admin ......... [ceph-admin][DEBUG ] IP addresses found: [u '192.168.10.220' ] [ceph_deploy.new][DEBUG ] Resolving host ceph-admin [ceph_deploy.new][DEBUG ] Monitor ceph-admin at 192.168.10.220 [ceph_deploy.new][DEBUG ] Monitor initial members are [ 'ceph-admin' ] [ceph_deploy.new][DEBUG ] Monitor addrs are [ '192.168.10.220' ] [ceph_deploy.new][DEBUG ] Creating a random mon key... [ceph_deploy.new][DEBUG ] Writing monitor keyring to ceph.mon.keyring... [ceph_deploy.new][DEBUG ] Writing initial config to ceph.conf... 修改ceph.conf文件(注意:mon_host必须和public network 网络是同网段内!) [cephuser@ceph-admin cluster]$ vim ceph.conf #添加下面两行配置内容 ...... public network = 192.168.10.220 /24 osd pool default size = 3 安装ceph(过程有点长,需要等待一段时间....) [cephuser@ceph-admin cluster]$ ceph-deploy install ceph-admin ceph-node1 ceph-node2 ceph-node3 初始化monit监控节点,并收集所有密钥 [cephuser@ceph-admin cluster]$ ceph-deploy mon create-initial [cephuser@ceph-admin cluster]$ ceph-deploy gatherkeys ceph-admin 添加OSD到集群 检查OSD节点上所有可用的磁盘 [cephuser@ceph-admin cluster]$ ceph-deploy disk list ceph-node1 ceph-node2 ceph-node3 使用zap选项删除所有osd节点上的分区 [cephuser@ceph-admin cluster]$ ceph-deploy disk zap ceph-node1: /dev/vdb ceph-node2: /dev/vdb ceph-node3: /dev/vdb 准备OSD(使用prepare命令) [cephuser@ceph-admin cluster]$ ceph-deploy osd prepare ceph-node1: /dev/vdb ceph-node2: /dev/vdb ceph-node3: /dev/vdb 激活OSD(注意由于ceph对磁盘进行了分区, /dev/vdb 磁盘分区为 /dev/vdb1 ) [cephuser@ceph-admin cluster]$ ceph-deploy osd activate ceph-node1: /dev/vdb1 ceph-node2: /dev/vdb1 ceph-node3: /dev/vdb1 --------------------------------------------------------------------------------------------- 可能出现下面的报错: [ceph-node1][WARNIN] ceph_disk.main.Error: Error: /dev/vdb1 is not a directory or block device [ceph-node1][ERROR ] RuntimeError: command returned non-zero exit status: 1 [ceph_deploy][ERROR ] RuntimeError: Failed to execute command : /usr/sbin/ceph-disk - v activate --mark-init systemd -- mount /dev/vdb1 但是这个报错没有影响ceph的部署,在三个osd节点上通过命令已显示磁盘已成功 mount : [cephuser@ceph-node1 ~]$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 4.2G 0 rom vda 252:0 0 70G 0 disk ├─vda1 252:1 0 1G 0 part /boot └─vda2 252:2 0 69G 0 part ├─centos-root 253:0 0 43.8G 0 lvm / ├─centos-swap 253:1 0 3.9G 0 lvm [SWAP] └─centos-home 253:2 0 21.4G 0 lvm /home vdb 252:16 0 20G 0 disk ├─vdb1 252:17 0 15G 0 part /var/lib/ceph/osd/ceph-0 #挂载成功 └─vdb2 252:18 0 5G 0 part [cephuser@ceph-node2 ~]$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 4.2G 0 rom vda 252:0 0 70G 0 disk ├─vda1 252:1 0 1G 0 part /boot └─vda2 252:2 0 69G 0 part ├─centos-root 253:0 0 43.8G 0 lvm / ├─centos-swap 253:1 0 3.9G 0 lvm [SWAP] └─centos-home 253:2 0 21.4G 0 lvm /home vdb 252:16 0 20G 0 disk ├─vdb1 252:17 0 15G 0 part /var/lib/ceph/osd/ceph-1 #挂载成功 └─vdb2 252:18 0 5G 0 part [cephuser@ceph-node3 ~]$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 4.2G 0 rom vda 252:0 0 70G 0 disk ├─vda1 252:1 0 1G 0 part /boot └─vda2 252:2 0 69G 0 part ├─centos-root 253:0 0 43.8G 0 lvm / ├─centos-swap 253:1 0 3.9G 0 lvm [SWAP] └─centos-home 253:2 0 21.4G 0 lvm /home vdb 252:16 0 20G 0 disk ├─vdb1 252:17 0 15G 0 part /var/lib/ceph/osd/ceph-2 #挂载成功 └─vdb2 252:18 0 5G 0 part 查看OSD [cephuser@ceph-admin cluster]$ ceph-deploy disk list ceph-node1 ceph-node2 ceph-node3 ........ [ceph-node1][DEBUG ] /dev/vdb2 ceph journal, for /dev/vdb1 #如下显示这两个分区,则表示成功了 [ceph-node1][DEBUG ] /dev/vdb1 ceph data, active, cluster ceph, osd.0, journal /dev/vdb2 ........ [ceph-node3][DEBUG ] /dev/vdb2 ceph journal, for /dev/vdb1 [ceph-node3][DEBUG ] /dev/vdb1 ceph data, active, cluster ceph, osd.1, journal /dev/vdb2 ....... [ceph-node3][DEBUG ] /dev/vdb2 ceph journal, for /dev/vdb1 [ceph-node3][DEBUG ] /dev/vdb1 ceph data, active, cluster ceph, osd.2, journal /dev/vdb2 用ceph-deploy把配置文件和admin密钥拷贝到管理节点和Ceph节点,这样你每次执行Ceph命令行时就无需指定monit节点地址 和ceph.client.admin.keyring了 [cephuser@ceph-admin cluster]$ ceph-deploy admin ceph-admin ceph-node1 ceph-node2 ceph-node3 修改密钥权限 [cephuser@ceph-admin cluster]$ sudo chmod 644 /etc/ceph/ceph .client.admin.keyring 检查ceph状态 [cephuser@ceph-admin cluster]$ sudo ceph health HEALTH_OK [cephuser@ceph-admin cluster]$ sudo ceph -s cluster 33bfa421-8a3b-40fa-9f14-791efca9eb96 health HEALTH_OK monmap e1: 1 mons at {ceph-admin=192.168.10.220:6789 /0 } election epoch 3, quorum 0 ceph-admin osdmap e14: 3 osds: 3 up, 3 in flags sortbitwise,require_jewel_osds pgmap v29: 64 pgs, 1 pools, 0 bytes data, 0 objects 100 MB used, 45946 MB / 46046 MB avail 64 active+clean 查看ceph osd运行状态 [cephuser@ceph-admin ~]$ ceph osd stat osdmap e19: 3 osds: 3 up, 3 in flags sortbitwise,require_jewel_osds 查看osd的目录树 [cephuser@ceph-admin ~]$ ceph osd tree ID WEIGHT TYPE NAME UP /DOWN REWEIGHT PRIMARY-AFFINITY -1 0.04376 root default -2 0.01459 host ceph-node1 0 0.01459 osd.0 up 1.00000 1.00000 -3 0.01459 host ceph-node2 1 0.01459 osd.1 up 1.00000 1.00000 -4 0.01459 host ceph-node3 2 0.01459 osd.2 up 1.00000 1.00000 查看monit监控节点的服务情况 [cephuser@ceph-admin cluster]$ sudo systemctl status ceph-mon@ceph-admin [cephuser@ceph-admin cluster]$ ps -ef| grep ceph| grep 'cluster' ceph 28190 1 0 11:44 ? 00:00:01 /usr/bin/ceph-mon -f --cluster ceph -- id ceph-admin --setuser ceph --setgroup ceph 分别查看下ceph-node1、ceph-node2、ceph-node3三个节点的osd服务情况,发现已经在启动中。 [cephuser@ceph-node1 ~]$ sudo systemctl status ceph-osd@0.service #启动是start、重启是restart [cephuser@ceph-node1 ~]$ sudo ps -ef| grep ceph| grep "cluster" ceph 28749 1 0 11:44 ? 00:00:00 /usr/bin/ceph-osd -f --cluster ceph -- id 0 --setuser ceph --setgroup ceph cephuser 29197 29051 0 11:54 pts /2 00:00:00 grep --color=auto cluster [cephuser@ceph-node2 ~]$ sudo systemctl status ceph-osd@1.service [cephuser@ceph-node2 ~]$ sudo ps -ef| grep ceph| grep "cluster" ceph 28749 1 0 11:44 ? 00:00:00 /usr/bin/ceph-osd -f --cluster ceph -- id 0 --setuser ceph --setgroup ceph cephuser 29197 29051 0 11:54 pts /2 00:00:00 grep --color=auto cluster [cephuser@ceph-node3 ~]$ sudo systemctl status ceph-osd@2.service [cephuser@ceph-node3 ~]$ sudo ps -ef| grep ceph| grep "cluster" ceph 28749 1 0 11:44 ? 00:00:00 /usr/bin/ceph-osd -f --cluster ceph -- id 0 --setuser ceph --setgroup ceph cephuser 29197 29051 0 11:54 pts /2 00:00:00 grep --color=auto cluster |
4)创建文件系统
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
先查看管理节点状态,默认是没有管理节点的。 [cephuser@ceph-admin ~]$ ceph mds stat e1: 创建管理节点(ceph-admin作为管理节点)。 需要注意:如果不创建mds管理节点,client客户端将不能正常挂载到ceph集群!! [cephuser@ceph-admin ~]$ pwd /home/cephuser [cephuser@ceph-admin ~]$ cd cluster/ [cephuser@ceph-admin cluster]$ ceph-deploy mds create ceph-admin 再次查看管理节点状态,发现已经在启动中 [cephuser@ceph-admin cluster]$ ceph mds stat e2:, 1 up:standby [cephuser@ceph-admin cluster]$ sudo systemctl status ceph-mds@ceph-admin [cephuser@ceph-admin cluster]$ ps -ef| grep cluster| grep ceph-mds ceph 29093 1 0 12:46 ? 00:00:00 /usr/bin/ceph-mds -f --cluster ceph -- id ceph-admin --setuser ceph --setgroup ceph 创建pool,pool是ceph存储数据时的逻辑分区,它起到namespace的作用 [cephuser@ceph-admin cluster]$ ceph osd lspools #先查看pool 0 rbd, 新创建的ceph集群只有rdb一个pool。这时需要创建一个新的pool [cephuser@ceph-admin cluster]$ ceph osd pool create cephfs_data 10 #后面的数字是PG的数量 pool 'cephfs_data' created [cephuser@ceph-admin cluster]$ ceph osd pool create cephfs_metadata 10 #创建pool的元数据 pool 'cephfs_metadata' created [cephuser@ceph-admin cluster]$ ceph fs new myceph cephfs_metadata cephfs_data new fs with metadata pool 2 and data pool 1 再次查看pool状态 [cephuser@ceph-admin cluster]$ ceph osd lspools 0 rbd,1 cephfs_data,2 cephfs_metadata, 检查mds管理节点状态 [cephuser@ceph-admin cluster]$ ceph mds stat e5: 1 /1/1 up {0=ceph-admin=up:active} 查看ceph集群状态 [cephuser@ceph-admin cluster]$ sudo ceph -s cluster 33bfa421-8a3b-40fa-9f14-791efca9eb96 health HEALTH_OK monmap e1: 1 mons at {ceph-admin=192.168.10.220:6789 /0 } election epoch 3, quorum 0 ceph-admin fsmap e5: 1 /1/1 up {0=ceph-admin=up:active} #多了此行状态 osdmap e19: 3 osds: 3 up, 3 in flags sortbitwise,require_jewel_osds pgmap v48: 84 pgs, 3 pools, 2068 bytes data, 20 objects 101 MB used, 45945 MB / 46046 MB avail 84 active+clean 查看ceph集群端口 [cephuser@ceph-admin cluster]$ sudo lsof -i:6789 COMMAND PID USER FD TYPE DEVICE SIZE /OFF NODE NAME ceph-mon 28190 ceph 10u IPv4 70217 0t0 TCP ceph-admin:smc-https (LISTEN) ceph-mon 28190 ceph 19u IPv4 70537 0t0 TCP ceph-admin:smc-https->ceph-node1:41308 (ESTABLISHED) ceph-mon 28190 ceph 20u IPv4 70560 0t0 TCP ceph-admin:smc-https->ceph-node2:48516 (ESTABLISHED) ceph-mon 28190 ceph 21u IPv4 70583 0t0 TCP ceph-admin:smc-https->ceph-node3:44948 (ESTABLISHED) ceph-mon 28190 ceph 22u IPv4 72643 0t0 TCP ceph-admin:smc-https->ceph-admin:51474 (ESTABLISHED) ceph-mds 29093 ceph 8u IPv4 72642 0t0 TCP ceph-admin:51474->ceph-admin:smc-https (ESTABLISHED) |
5)client端挂载ceph存储(采用fuse方式)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
安装ceph-fuse(这里的客户机是centos6系统) [root@centos6-02 ~] # rpm -Uvh https://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm [root@centos6-02 ~] # yum install -y ceph-fuse 创建挂载目录 [root@centos6-02 ~] # mkdir /cephfs 复制配置文件 将ceph配置文件ceph.conf从管理节点copy到client节点(192.168.10.220为管理节点) [root@centos6-02 ~] # rsync -e "ssh -p22" -avpgolr root@192.168.10.220:/etc/ceph/ceph.conf /etc/ceph/ 或者 [root@centos6-02 ~] # rsync -e "ssh -p22" -avpgolr root@192.168.10.220:/home/cephuser/cluster/ceph.conf /etc/ceph/ #两个路径下的文件内容一样 复制密钥 将ceph的ceph.client.admin.keyring从管理节点copy到client节点 [root@centos6-02 ~] # rsync -e "ssh -p22" -avpgolr root@192.168.10.220:/etc/ceph/ceph.client.admin.keyring /etc/ceph/ 或者 [root@centos6-02 ~] # rsync -e "ssh -p22" -avpgolr root@192.168.10.220:/home/cephuser/cluster/ceph.client.admin.keyring /etc/ceph/ 查看ceph授权 [root@centos6-02 ~] # ceph auth list installed auth entries: mds.ceph-admin key: AQAZZxdbH6uAOBAABttpSmPt6BXNtTJwZDpSJg== caps: [mds] allow caps: [mon] allow profile mds caps: [osd] allow rwx osd.0 key: AQCuWBdbV3TlBBAA4xsAE4QsFQ6vAp+7pIFEHA== caps: [mon] allow profile osd caps: [osd] allow * osd.1 key: AQC6WBdbakBaMxAAsUllVWdttlLzEI5VNd /41w == caps: [mon] allow profile osd caps: [osd] allow * osd.2 key: AQDJWBdbz6zNNhAATwzL2FqPKNY1IvQDmzyOSg== caps: [mon] allow profile osd caps: [osd] allow * client.admin key: AQCNWBdbf1QxAhAAkryP+OFy6wGnKR8lfYDkUA== caps: [mds] allow * caps: [mon] allow * caps: [osd] allow * client.bootstrap-mds key: AQCNWBdbnjLILhAAT1hKtLEzkCrhDuTLjdCJig== caps: [mon] allow profile bootstrap-mds client.bootstrap-mgr key: AQCOWBdbmxEANBAAiTMJeyEuSverXAyOrwodMQ== caps: [mon] allow profile bootstrap-mgr client.bootstrap-osd key: AQCNWBdbiO1bERAARLZaYdY58KLMi4oyKmug4Q== caps: [mon] allow profile bootstrap-osd client.bootstrap-rgw key: AQCNWBdboBLXIBAAVTsD2TPJhVSRY2E9G7eLzQ== caps: [mon] allow profile bootstrap-rgw 将ceph集群存储挂载到客户机的 /cephfs 目录下 [root@centos6-02 ~] # ceph-fuse -m 192.168.10.220:6789 /cephfs 2018-06-06 14:28:54.149796 7f8d5c256760 -1 init, newargv = 0x4273580 newargc=11 ceph-fuse[16107]: starting ceph client ceph-fuse[16107]: starting fuse [root@centos6-02 ~] # df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_centos602-lv_root 50G 3.5G 44G 8% / tmpfs 1.9G 0 1.9G 0% /dev/shm /dev/vda1 477M 41M 412M 9% /boot /dev/mapper/vg_centos602-lv_home 45G 52M 43G 1% /home /dev/vdb1 20G 5.1G 15G 26% /data/osd1 ceph-fuse 45G 100M 45G 1% /cephfs 由上面可知,已经成功挂载了ceph存储,三个osd节点,每个节点有15G(在节点上通过 "lsblk" 命令可以查看ceph data分区大小),一共45G! 取消ceph存储的挂载 [root@centos6-02 ~] # umount /cephfs 温馨提示: 当有一半以上的OSD节点挂掉后,远程客户端挂载的Ceph存储就会使用异常了,即暂停使用。比如本案例中有3个OSD节点,当其中一个OSD节点挂掉后(比如宕机), 客户端挂载的Ceph存储使用正常;但当有2个OSD节点挂掉后,客户端挂载的Ceph存储就不能正常使用了(表现为Ceph存储目录下的数据读写操作一直卡着状态), 当OSD节点恢复后,Ceph存储也会恢复正常使用。OSD节点宕机重新启动后,osd程序会自动起来(通过监控节点自动起来) |
============================其他记录===========================
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
------------------------------------------------------------------- 清除ceph存储 清除安装包 [cephuser@ceph-admin ~]$ ceph-deploy purge ceph1 ceph2 ceph3 清除配置信息 [cephuser@ceph-admin ~]$ ceph-deploy purgedata ceph1 ceph2 ceph3 [cephuser@ceph-admin ~]$ ceph-deploy forgetkeys 每个节点删除残留的配置文件 [cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/osd/ * [cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/mon/ * [cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/mds/ * [cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/bootstrap-mds/ * [cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/bootstrap-osd/ * [cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/bootstrap-mon/ * [cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/tmp/ * [cephuser@ceph-admin ~]$ sudo rm -rf /etc/ceph/ * [cephuser@ceph-admin ~]$ sudo rm -rf /var/run/ceph/ * ----------------------------------------------------------------------- 查看ceph命令,关于ceph osd、ceph mds、ceph mon、ceph pg的命令 [cephuser@ceph-admin ~]$ ceph --help ----------------------------------------------------------------------- 如下报错 [cephuser@ceph-admin ~]$ ceph osd tree 2018-06-06 14:56:27.843841 7f8a0b6dd700 -1 auth: unable to find a keyring on /etc/ceph/ceph .client.admin.keyring, /etc/ceph/ceph .keyring, /etc/ceph/keyring , /etc/ceph/keyring .bin: (2) No such file or directory 2018-06-06 14:56:27.843853 7f8a0b6dd700 -1 monclient(hunting): ERROR: missing keyring, cannot use cephx for authentication 2018-06-06 14:56:27.843854 7f8a0b6dd700 0 librados: client.admin initialization error (2) No such file or directory Error connecting to cluster: ObjectNotFound [cephuser@ceph-admin ~]$ ceph osd stat 2018-06-06 14:55:58.165882 7f377a1c9700 -1 auth: unable to find a keyring on /etc/ceph/ceph .client.admin.keyring, /etc/ceph/ceph .keyring, /etc/ceph/keyring , /etc/ceph/keyring .bin: (2) No such file or directory 2018-06-06 14:55:58.165894 7f377a1c9700 -1 monclient(hunting): ERROR: missing keyring, cannot use cephx for authentication 2018-06-06 14:55:58.165896 7f377a1c9700 0 librados: client.admin initialization error (2) No such file or directory 解决办法: [cephuser@ceph-admin ~]$ sudo chmod 644 /etc/ceph/ceph .client.admin.keyring [cephuser@ceph-admin ~]$ ceph osd stat osdmap e35: 3 osds: 3 up, 3 in flags sortbitwise,require_jewel_osds [cephuser@ceph-admin ~]$ ceph osd tree ID WEIGHT TYPE NAME UP /DOWN REWEIGHT PRIMARY-AFFINITY -1 0.04376 root default -2 0.01459 host ceph-node1 0 0.01459 osd.0 up 1.00000 1.00000 -3 0.01459 host ceph-node2 1 0.01459 osd.1 up 1.00000 1.00000 -4 0.01459 host ceph-node3 2 0.01459 osd.2 up 1.00000 1.00000 |
999 yum makecache
1000 yum -y install ceph-deploy
1001 ceph-deploy --version
1002 mkdir ceph-cluster && cd ceph-cluster
1003 pwd
1004 cd ..
1005 rm -rf ceph-cluster/
1006 cd ~
1007 mkdir ceph-cluster && cd ceph-cluster
1008 pwd
1009 ceph-deploy new m7-autocv-gpu01 m7-autocv-gpu02 m7-autocv-gpu03
1010 ls
1011 find / -name ceph.conf
1012 ls
1013 vim ceph.conf
1014 ceph-deploy install m7-autocv-gpu01 m7-autocv-gpu02 m7-autocv-gpu03
1015 ceph --version
1016 ceph -s
1017 ceph-deploy install m7-autocv-gpu01 m7-autocv-gpu02 m7-autocv-gpu03
1018 ceph --version
1019 python -v
1020 ls
1021 python --version
1022 ceph-deploy install m7-autocv-gpu01 m7-autocv-gpu02 m7-autocv-gpu03
1023 ceph -s
1024 ceph-deploy mon create-initial
1025 ls
1026 pwd
1027 ls
1028 ceph -s
1029 ceph-deploy disk list m7-autocv-gpu01 m7-autocv-gpu02 m7-autocv-gpu03
1030 fdisk -l
1031 df -h
1032 ls /dev
1033 ls
1034 ceph-deploy disk zap m7-autocv-gpu01:sdb m7-autocv-gpu02:sdb m7-autocv-gpu03:sdb
1035 ceph-deploy osd create m7-autocv-gpu01:sdb m7-autocv-gpu02:sdb m7-autocv-gpu03:sdb
1036 ceph osd tree
1037 ceph-deploy osd create m7-autocv-gpu01:sdb
1038 /ceph-disk -v
1039 ceph -s
1040 ceph-deploy osd prepare m7-autocv-gpu01:sdb
1041 fdisk /dev/sdb
1042 ceph-deploy osd prepare m7-autocv-gpu01:sdb
1043 mkfs.xfs /dev/sdb
1044 fdisk -l
1045 mkfs.xfs /dev/sdb1
1046 fdisk -l
1047 ceph-deploy osd prepare m7-autocv-gpu01:sdb
1048 ceph-deploy osd prepare m7-autocv-gpu01:sdb1
1049 ceph -s
1050 ceph-deploy osd activate m7-autocv-gpu01:sdb1
1051 ceph -s
1052 ceph-deploy osd activate m7-autocv-gpu01:sdb
1053 /usr/sbin/ceph-disk -v activate --mark-init systemd --mount /dev/sdb
1054 fdisk -l
1055 df -h
1056 cd /boot
1057 ls
1058 ll
1059 df -h
1060 fdisk -l
1061 history
1062 ceph-deploy osd create m7-autocv-gpu01:sdb m7-autocv-gpu02:sdb m7-autocv-gpu03:sdb
1063 ceph-deploy osd create m7-autocv-gpu01:sdb1 m7-autocv-gpu02:sdb1 m7-autocv-gpu03:sdb1
1064 ceph-deploy osd create m7-autocv-gpu02:sdb1 m7-autocv-gpu03:sdb1
1065 cd ~
1066 ls
1067 cd ceph-cluster/
1068 ls
1069 ceph-deploy osd create m7-autocv-gpu02:sdb1 m7-autocv-gpu03:sdb1
1070 ceph-deploy osd activate m7-autocv-gpu01:sdb1 m7-autocv-gpu02:sdb1 m7-autocv-gpu03:sdb1
1071 ceph -s
1072 chown ceph:ceph /var/local/osd0
1073 chown ceph:ceph /var/local/osd1
1074 chown ceph:ceph /var/local/osd
1075 chown ceph:ceph /dev/sdb1
1076 ceph-deploy osd activate m7-autocv-gpu01:sdb1 m7-autocv-gpu02:sdb1 m7-autocv-gpu03:sdb1
1077 ceph -s
1000 yum -y install ceph-deploy
1001 ceph-deploy --version
1002 mkdir ceph-cluster && cd ceph-cluster
1003 pwd
1004 cd ..
1005 rm -rf ceph-cluster/
1006 cd ~
1007 mkdir ceph-cluster && cd ceph-cluster
1008 pwd
1009 ceph-deploy new m7-autocv-gpu01 m7-autocv-gpu02 m7-autocv-gpu03
1010 ls
1011 find / -name ceph.conf
1012 ls
1013 vim ceph.conf
1014 ceph-deploy install m7-autocv-gpu01 m7-autocv-gpu02 m7-autocv-gpu03
1015 ceph --version
1016 ceph -s
1017 ceph-deploy install m7-autocv-gpu01 m7-autocv-gpu02 m7-autocv-gpu03
1018 ceph --version
1019 python -v
1020 ls
1021 python --version
1022 ceph-deploy install m7-autocv-gpu01 m7-autocv-gpu02 m7-autocv-gpu03
1023 ceph -s
1024 ceph-deploy mon create-initial
1025 ls
1026 pwd
1027 ls
1028 ceph -s
1029 ceph-deploy disk list m7-autocv-gpu01 m7-autocv-gpu02 m7-autocv-gpu03
1030 fdisk -l
1031 df -h
1032 ls /dev
1033 ls
1034 ceph-deploy disk zap m7-autocv-gpu01:sdb m7-autocv-gpu02:sdb m7-autocv-gpu03:sdb
1035 ceph-deploy osd create m7-autocv-gpu01:sdb m7-autocv-gpu02:sdb m7-autocv-gpu03:sdb
1036 ceph osd tree
1037 ceph-deploy osd create m7-autocv-gpu01:sdb
1038 /ceph-disk -v
1039 ceph -s
1040 ceph-deploy osd prepare m7-autocv-gpu01:sdb
1041 fdisk /dev/sdb
1042 ceph-deploy osd prepare m7-autocv-gpu01:sdb
1043 mkfs.xfs /dev/sdb
1044 fdisk -l
1045 mkfs.xfs /dev/sdb1
1046 fdisk -l
1047 ceph-deploy osd prepare m7-autocv-gpu01:sdb
1048 ceph-deploy osd prepare m7-autocv-gpu01:sdb1
1049 ceph -s
1050 ceph-deploy osd activate m7-autocv-gpu01:sdb1
1051 ceph -s
1052 ceph-deploy osd activate m7-autocv-gpu01:sdb
1053 /usr/sbin/ceph-disk -v activate --mark-init systemd --mount /dev/sdb
1054 fdisk -l
1055 df -h
1056 cd /boot
1057 ls
1058 ll
1059 df -h
1060 fdisk -l
1061 history
1062 ceph-deploy osd create m7-autocv-gpu01:sdb m7-autocv-gpu02:sdb m7-autocv-gpu03:sdb
1063 ceph-deploy osd create m7-autocv-gpu01:sdb1 m7-autocv-gpu02:sdb1 m7-autocv-gpu03:sdb1
1064 ceph-deploy osd create m7-autocv-gpu02:sdb1 m7-autocv-gpu03:sdb1
1065 cd ~
1066 ls
1067 cd ceph-cluster/
1068 ls
1069 ceph-deploy osd create m7-autocv-gpu02:sdb1 m7-autocv-gpu03:sdb1
1070 ceph-deploy osd activate m7-autocv-gpu01:sdb1 m7-autocv-gpu02:sdb1 m7-autocv-gpu03:sdb1
1071 ceph -s
1072 chown ceph:ceph /var/local/osd0
1073 chown ceph:ceph /var/local/osd1
1074 chown ceph:ceph /var/local/osd
1075 chown ceph:ceph /dev/sdb1
1076 ceph-deploy osd activate m7-autocv-gpu01:sdb1 m7-autocv-gpu02:sdb1 m7-autocv-gpu03:sdb1
1077 ceph -s
***************当你发现自己的才华撑不起野心时,就请安静下来学习吧***************https://www.cnblogs.com/yangxiaoyi/p/7795274.html
aliyun活动
https://www.aliyun.com/acts/limit-buy?userCode=re2o7acl