CentOS7下部署Ceph集群（版本10.2.2）

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1 简单介绍
Ceph 的部署模式下主要包含以下几个类型的节点

Ø Ceph OSDs: A Ceph OSD 进程主要用来存储数据，处理数据的 replication, 恢复，填充，调整资源组合以及通过检查其他 OSD 进程的心跳信息提供一些监控信息给 Ceph Monitors . 当 Ceph Storage Cluster 要准备 2 份数据备份时，要求至少有 2 个 Ceph OSD 进程的状态是 active+clean 状态 (Ceph 默认会提供两份数据备份).

Ø Monitors: Ceph Monitor 维护了集群 map 的状态，主要包括 monitor map, OSD map, Placement Group (PG) map, 以及 CRUSH map. Ceph 维护了 Ceph Monitors, Ceph OSD Daemons, 以及 PGs 状态变化的历史记录 (called an“epoch”).

Ø MDSs: Ceph Metadata Server (MDS)存储的元数据代表 Ceph 的文件系统 (i.e., Ceph Block Devices 以及 Ceph Object Storage 不适用 MDS). Ceph Metadata Servers 让系统用户可以执行一些 POSIX 文件系统的基本命令，例如 ls,find 等.

2 集群规划
在创建集群前，首先做好集群规划。

2.1 网络拓扑
基于 VMware 虚拟机部署 ceph 集群：

CentOS7 下部署 Ceph 集群（版本 10.2.2）

2.2 节点规划

Hostname(如何更新)	VmNet	节点 IP	说明
node0	HostOnly	192.168.92.100	Admin, osd(sdb)

node1	HostOnly	192.168.92.101	Osd(sdb),mon

node2	HostOnly	192.168.92.102	Osd(sdb),mon,mds

node3	HostOnly	192.168.92.103	Osd(sdb),mon,mds

client-node	HostOnly	192.168.92.109	用户端节点；客服端，主要利用它挂载 ceph 集群提供的存储进行测试

3 准备工作
3.1 root 权限准备
分别为上述各节点主机创建用户 ceph:(使用 root 权限，或者具有 root 权限)

创建用户

[root@node0 ~]# adduser -d /home/ceph -m ceph

设置密码

[root@node0 ~]#passwd ceph

设置账户权限

[root@node0 ~]# echo“ceph ALL =（root) NOPASSWD:ALL”| sudo tee /etc/sudoers.d/ceph
[root@node0 ~]# chomod 0440 /etc/sudoers.d/ceph

3.2 管理节点修改 hosts
修改 /etc/hosts

[ceph@node0 cluster]$ sudo cat /etc/hosts
[sudo] password for ceph:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.92.100 node0
192.168.92.101 node1
192.168.92.102 node2
192.168.92.103 node3
[ceph@node0 cluster]$

3.3 requiretty 准备
执行命令 visudo 修改 suoders 文件：

1. 注释 Defaults requiretty

Defaults requiretty 修改为 #Defaults requiretty，表示不需要控制终端。

否则会出现 sudo: sorry, you must have a tty to run sudo

2. 增加行 Defaults visiblepw

否则会出现 sudo: no tty present and no askpass program specified

如果在 ceph-deploy new <node-hostname> 阶段依旧出错：

[ceph@node0 cluster]$ ceph-deploy new node1 node2 node3
[ceph_deploy.conf][DEBUG] found configuration file at: /home/ceph/.cephdeploy.conf
[ceph_deploy.cli][INFO] Invoked (1.5.28): /usr/bin/ceph-deploy new node3
[ceph_deploy.cli][INFO] ceph-deploy options:
[ceph_deploy.cli][INFO] username : None
[ceph_deploy.cli][INFO] func : <function new at 0xee0b18>
[ceph_deploy.cli][INFO] verbose : False
[ceph_deploy.cli][INFO] overwrite_conf : False
[ceph_deploy.cli][INFO] quiet : False
[ceph_deploy.cli][INFO] cd_conf : <ceph_deploy.conf.cephdeploy.Conf instance at 0xef9a28>
[ceph_deploy.cli][INFO] cluster : ceph
[ceph_deploy.cli][INFO] ssh_copykey : True
[ceph_deploy.cli][INFO] mon : [‘node3’]
[ceph_deploy.cli][INFO] public_network : None
[ceph_deploy.cli][INFO] ceph_conf : None
[ceph_deploy.cli][INFO] cluster_network : None
[ceph_deploy.cli][INFO] default_release : False
[ceph_deploy.cli][INFO] fsid : None
[ceph_deploy.new][DEBUG] Creating new cluster named ceph
[ceph_deploy.new][INFO] making sure passwordless SSH succeeds
[node3][DEBUG] connected to host: node0
[node3][INFO] Running command: ssh -CT -o BatchMode=yes node3
[node3][DEBUG] connection detected need for sudo
[node3][DEBUG] connected to host: node3
[ceph_deploy][ERROR] RuntimeError: remote connection got closed, ensure “requiretty“ is disabled for node3
[ceph@node0 cluster]$

3.4 管理节点的无密码远程访问权限
配置管理节点与其他节点 ssh 无密码 root 权限访问其它节点。

第一步：在管理节点主机上执行命令：

ssh-keygen

说明：（为了简单点命令执行时直接确定即可）

第二步：将第一步的 key 复制至其他节点

ssh-copy-id ceph@node0

ssh-copy-id ceph@node1

ssh-copy-id ceph@node2

ssh-copy-id ceph@node3

同时修改~/.ssh/config 文件增加一下内容：

[ceph@node0 cluster]$ cat ~/.ssh/config
Host node0
Hostname node0
User ceph
Host node1
Hostname node1
User ceph
Host node2
Hostname node2
User ceph
Host node3
Hostname node3
User ceph
[ceph@node0 cluster]$

3.5 关闭防火墙

[root@localhost ceph]# systemctl stop firewalld.service
[root@localhost ceph]# systemctl disable firewalld.service
Removed symlink /etc/systemd/system/dbus-org.Fedoraproject.FirewallD1.service.
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
[root@localhost ceph]#

[root@localhost ceph]# systemctl stop firewalld.service
[root@localhost ceph]# systemctl disable firewalld.service
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
[root@localhost ceph]#

3.6 禁用 selinux
当前禁用

setenforce 0

永久禁用

[root@localhost ceph]# cat /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing – SELinux security policy is enforced.
# permissive – SELinux prints warnings instead of enforcing.
# disabled – No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of three two values:
# targeted – Targeted processes are protected,
# minimum – Modification of targeted policy. Only selected processes are protected.
# mls – Multi Level Security protection.
SELINUXTYPE=targeted

3.6.1 Bad owner or permissions on .ssh/config 的解决
错误信息：

Bad owner or permissions on /home/ceph/.ssh/config fatal: The remote end hung up unexpectedly

解决方案：

$sudo chmod 600 config

4 管理节点安装 ceph-deploy 工具
第一步：增加 yum 配置文件

sudo vim /etc/yum.repos.d/ceph.repo

添加以下内容：

[Ceph-noarch]
name=Ceph noarch packages
baseurl=http://download.ceph.com/rpm-jewel/el7/noarch
enabled=1
gpgcheck=1
type=rpm-md
gpgkey=https://download.ceph.com/keys/release.asc
priority=1

第二步：更新软件源并按照 ceph-deploy，时间同步软件

[ceph@node0 cluster]$ sudo yum update && sudo yum install ceph-deploy
[ceph@node0 cluster]$ sudo yum install ntp ntpupdate ntp-doc

第三步：关闭所有节点的防火墙以及安全选项(在所有节点上执行）以及其他一些步骤

[ceph@node0 cluster]$ sudo systemctl stop firewall.service;
[ceph@node0 cluster]$ sudo systemctl disable firewall.service

[ceph@node0 cluster]$ sudo yum install yum-plugin-priorities

[ceph@node0 cluster]$ sudo systemctl stop firewall.service;
[ceph@node0 cluster]$ sudo systemctl disable firewall.service

[ceph@node0 cluster]$ sudo yum install yum-plugin-priorities

总结：经过以上步骤前提条件都准备好了接下来真正部署 ceph 了。

clip_image004

5 创建 Ceph 集群
以前面创建的 ceph 用户在管理节点节点上创建目录()

[ceph@node0 ~]$ mkdir cluster
[ceph@node0 cluster]$ cd cluster

5.1 如何清空 ceph 数据
先清空之前所有的 ceph 数据，如果是新装不用执行此步骤，如果是重新部署的话也执行下面的命令：

ceph-deploy purgedata {ceph-node} [{ceph-node}]

ceph-deploy forgetkeys

如：

[ceph@node0 cluster]$ ceph-deploy purgedata admin_node node1 node2 node3
[ceph_deploy.conf][DEBUG] found configuration file at: /home/ceph/.cephdeploy.conf
[ceph_deploy.cli][INFO] Invoked (1.5.28): /usr/bin/ceph-deploy purgedata node0 node1 node2 node3
…
[node3][INFO] Running command: sudo rm -rf –one-file-system — /var/lib/ceph
[node3][INFO] Running command: sudo rm -rf –one-file-system — /etc/ceph/
[ceph@node0 cluster]$ ceph-deploy forgetkeys
[ceph_deploy.conf][DEBUG] found configuration file at: /home/ceph/.cephdeploy.conf
[ceph_deploy.cli][INFO] Invoked (1.5.28): /usr/bin/ceph-deploy forgetkeys
…
[ceph_deploy.cli][INFO] default_release : False
[ceph@node0 my-cluster]$

5.2 创建集群设置 Monitor 节点
在 admin 节点上用 ceph-deploy 创建集群，new 后面跟的是 monitor 节点的 hostname，如果有多个 monitor，则它们的 hostname 以为间隔，多个 mon 节点可以实现互备。

[ceph@node0 cluster]$ ceph-deploy new node1 node2 node3
[ceph_deploy.conf][DEBUG] found configuration file at: /home/ceph/.cephdeploy.conf
[ceph_deploy.cli][INFO] Invoked (1.5.34): /usr/bin/ceph-deploy new node1 node2 node3
[ceph_deploy.cli][INFO] ceph-deploy options:
[ceph_deploy.cli][INFO] username : None
[ceph_deploy.cli][INFO] func : <function new at 0x29f2b18>
[ceph_deploy.cli][INFO] verbose : False
[ceph_deploy.cli][INFO] overwrite_conf : False
[ceph_deploy.cli][INFO] quiet : False
[ceph_deploy.cli][INFO] cd_conf : <ceph_deploy.conf.cephdeploy.Conf instance at 0x2a15a70>
[ceph_deploy.cli][INFO] cluster : ceph
[ceph_deploy.cli][INFO] ssh_copykey : True
[ceph_deploy.cli][INFO] mon : [‘node1’, ‘node2’, ‘node3’]
[ceph_deploy.cli][INFO] public_network : None
[ceph_deploy.cli][INFO] ceph_conf : None
[ceph_deploy.cli][INFO] cluster_network : None
[ceph_deploy.cli][INFO] default_release : False
[ceph_deploy.cli][INFO] fsid : None
[ceph_deploy.new][DEBUG] Creating new cluster named ceph
[ceph_deploy.new][INFO] making sure passwordless SSH succeeds
[node1][DEBUG] connected to host: node0
[node1][INFO] Running command: ssh -CT -o BatchMode=yes node1
[node1][DEBUG] connection detected need for sudo
[node1][DEBUG] connected to host: node1
[node1][DEBUG] detect platform information from remote host
[node1][DEBUG] detect machine type
[node1][DEBUG] find the location of an executable
[node1][INFO] Running command: sudo /usr/sbin/ip link show
[node1][INFO] Running command: sudo /usr/sbin/ip addr show
[node1][DEBUG] IP addresses found: [‘192.168.92.101’, ‘192.168.1.102’, ‘192.168.122.1’]
[ceph_deploy.new][DEBUG] Resolving host node1
[ceph_deploy.new][DEBUG] Monitor node1 at 192.168.92.101
[ceph_deploy.new][INFO] making sure passwordless SSH succeeds
[node2][DEBUG] connected to host: node0
[node2][INFO] Running command: ssh -CT -o BatchMode=yes node2
[node2][DEBUG] connection detected need for sudo
[node2][DEBUG] connected to host: node2
[node2][DEBUG] detect platform information from remote host
[node2][DEBUG] detect machine type
[node2][DEBUG] find the location of an executable
[node2][INFO] Running command: sudo /usr/sbin/ip link show
[node2][INFO] Running command: sudo /usr/sbin/ip addr show
[node2][DEBUG] IP addresses found: [‘192.168.1.103’, ‘192.168.122.1’, ‘192.168.92.102’]
[ceph_deploy.new][DEBUG] Resolving host node2
[ceph_deploy.new][DEBUG] Monitor node2 at 192.168.92.102
[ceph_deploy.new][INFO] making sure passwordless SSH succeeds
[node3][DEBUG] connected to host: node0
[node3][INFO] Running command: ssh -CT -o BatchMode=yes node3
[node3][DEBUG] connection detected need for sudo
[node3][DEBUG] connected to host: node3
[node3][DEBUG] detect platform information from remote host
[node3][DEBUG] detect machine type
[node3][DEBUG] find the location of an executable
[node3][INFO] Running command: sudo /usr/sbin/ip link show
[node3][INFO] Running command: sudo /usr/sbin/ip addr show
[node3][DEBUG] IP addresses found: [‘192.168.122.1’, ‘192.168.1.104’, ‘192.168.92.103’]
[ceph_deploy.new][DEBUG] Resolving host node3
[ceph_deploy.new][DEBUG] Monitor node3 at 192.168.92.103
[ceph_deploy.new][DEBUG] Monitor initial members are [‘node1’, ‘node2’, ‘node3’]
[ceph_deploy.new][DEBUG] Monitor addrs are [‘192.168.92.101’, ‘192.168.92.102’, ‘192.168.92.103’]
[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…
[ceph@node0 cluster]$

查看生成的文件

[ceph@node0 cluster]$ ls
ceph.conf ceph.log ceph.mon.keyring

查看 ceph 的配置文件，Node1 节点都变为了控制节点

[ceph@node0 cluster]$ cat ceph.conf
[global]
fsid = 3c9892d0-398b-4808-aa20-4dc622356bd0
mon_initial_members = node1, node2, node3
mon_host = 192.168.92.111,192.168.92.112,192.168.92.113
auth_cluster_required = cephx
auth_service_required = cephx
auth_client_required = cephx
filestore_xattr_use_omap = true
[ceph@node0 my-cluster]$

5.2.1 修改副本数目
修改默认的副本数为 2，即 ceph.conf，使 osd_pool_default_size 的值为 2。如果该行，则添加。

[ceph@node0 cluster]$ grep “osd_pool_default_size” ./ceph.conf
osd_pool_default_size = 2
[ceph@node0 cluster]$

5.2.2 网络不唯一的处理
如果 IP 不唯一，即除 ceph 集群使用的网络外，还有其他的网络 IP。

比如：

eno16777736: 192.168.175.100

eno50332184: 192.168.92.110

virbr0: 192.168.122.1

那么就需要在 ceph.conf 配置文档 [global] 部分增加参数 public network 参数：

public_network = {ip-address}/{netmask}

如：

public_network = 192.168.92.0/6789

5.3 安装 ceph
管理节点节点用 ceph-deploy 工具向各个节点安装 ceph：

ceph-deploy install {ceph-node}[{ceph-node} …]

或者本地

ceph-deploy install {ceph-node}[{ceph-node} …] –local-mirror=/opt/ceph-repo –no-adjust-repos –release=jewel

如：

[ceph@node0 cluster]$ ceph-deploy install node0 node1 node2 node3
[ceph@node0 cluster]$ ceph-deploy install node0 node1 node2 node3
[ceph_deploy.conf][DEBUG] found configuration file at: /home/ceph/.cephdeploy.conf
[ceph_deploy.cli][INFO] Invoked (1.5.34): /usr/bin/ceph-deploy install node0 node1 node2 node3
[ceph_deploy.cli][INFO] ceph-deploy options:
[ceph_deploy.cli][INFO] verbose : False
[ceph_deploy.cli][INFO] testing : None
[ceph_deploy.cli][INFO] cd_conf : <ceph_deploy.conf.cephdeploy.Conf instance at 0x2ae0560>
[ceph_deploy.cli][INFO] cluster : ceph
[ceph_deploy.cli][INFO] dev_commit : None
[ceph_deploy.cli][INFO] install_mds : False
[ceph_deploy.cli][INFO] stable : None
[ceph_deploy.cli][INFO] default_release : False
[ceph_deploy.cli][INFO] username : None
[ceph_deploy.cli][INFO] adjust_repos : True
[ceph_deploy.cli][INFO] func : <function install at 0x2a53668>
[ceph_deploy.cli][INFO] install_all : False
[ceph_deploy.cli][INFO] repo : False
[ceph_deploy.cli][INFO] host : [‘node0’, ‘node1’, ‘node2’, ‘node3’]
[ceph_deploy.cli][INFO] install_rgw : False
[ceph_deploy.cli][INFO] install_tests : False
[ceph_deploy.cli][INFO] repo_url : None
[ceph_deploy.cli][INFO] ceph_conf : None
[ceph_deploy.cli][INFO] install_osd : False
[ceph_deploy.cli][INFO] version_kind : stable
[ceph_deploy.cli][INFO] install_common : False
[ceph_deploy.cli][INFO] overwrite_conf : False
[ceph_deploy.cli][INFO] quiet : False
[ceph_deploy.cli][INFO] dev : master
[ceph_deploy.cli][INFO] local_mirror : None
[ceph_deploy.cli][INFO] release : None
[ceph_deploy.cli][INFO] install_mon : False
[ceph_deploy.cli][INFO] gpg_url : None
[ceph_deploy.install][DEBUG] Installing stable version jewel on cluster ceph hosts node0 node1 node2 node3
[ceph_deploy.install][DEBUG] Detecting platform for host node0 …
[node0][DEBUG] connection detected need for sudo
[node0][DEBUG] connected to host: node0
[node0][DEBUG] detect platform information from remote host
[node0][DEBUG] detect machine type
[ceph_deploy.install][INFO] Distro info: CentOS Linux 7.2.1511 Core
[node0][INFO] installing Ceph on node0
[node0][INFO] Running command: sudo yum clean all
[node0][DEBUG] Loaded plugins: fastestmirror, langpacks, priorities
[node0][DEBUG] Cleaning repos: Ceph Ceph-noarch base ceph-source epel extras updates
[node0][DEBUG] Cleaning up everything
[node0][DEBUG] Cleaning up list of fastest mirrors
[node0][INFO] Running command: sudo yum -y install epel-release
[node0][DEBUG] Loaded plugins: fastestmirror, langpacks, priorities
[node0][DEBUG] Determining fastest mirrors
[node0][DEBUG] * epel: mirror01.idc.hinet.net
[node0][DEBUG] 25 packages excluded due to repository priority protections
[node0][DEBUG] Package epel-release-7-7.noarch already installed and latest version
[node0][DEBUG] Nothing to do
[node0][INFO] Running command: sudo yum -y install yum-plugin-priorities
[node0][DEBUG] Loaded plugins: fastestmirror, langpacks, priorities
[node0][DEBUG] Loading mirror speeds from cached hostfile
[node0][DEBUG] * epel: mirror01.idc.hinet.net
[node0][DEBUG] 25 packages excluded due to repository priority protections
[node0][DEBUG] Package yum-plugin-priorities-1.1.31-34.el7.noarch already installed and latest version
[node0][DEBUG] Nothing to do
[node0][DEBUG] Configure Yum priorities to include obsoletes
[node0][WARNIN] check_obsoletes has been enabled for Yum priorities plugin
[node0][INFO] Running command: sudo rpm –import https://download.ceph.com/keys/release.asc
[node0][INFO] Running command: sudo rpm -Uvh –replacepkgs https://download.ceph.com/rpm-jewel/el7/noarch/ceph-release-1-0.el7.noarch.rpm
[node0][DEBUG] Retrieving https://download.ceph.com/rpm-jewel/el7/noarch/ceph-release-1-0.el7.noarch.rpm
[node0][DEBUG] Preparing… ########################################
[node0][DEBUG] Updating / installing…
[node0][DEBUG] ceph-release-1-1.el7 ########################################
[node0][WARNIN] ensuring that /etc/yum.repos.d/ceph.repo contains a high priority
[node0][WARNIN] altered ceph.repo priorities to contain: priority=1
[node0][INFO] Running command: sudo yum -y install ceph ceph-radosgw
[node0][DEBUG] Loaded plugins: fastestmirror, langpacks, priorities
[node0][DEBUG] Loading mirror speeds from cached hostfile
[node0][DEBUG] * epel: mirror01.idc.hinet.net
[node0][DEBUG] 25 packages excluded due to repository priority protections
[node0][DEBUG] Package 1:ceph-10.2.2-0.el7.x86_64 already installed and latest version
[node0][DEBUG] Package 1:ceph-radosgw-10.2.2-0.el7.x86_64 already installed and latest version
[node0][DEBUG] Nothing to do
[node0][INFO] Running command: sudo ceph –version
[node0][DEBUG] ceph version 10.2.2 (45107e21c568dd033c2f0a3107dec8f0b0e58374)
….

5.4 初始化 monitor 节点
初始化监控节点并收集 keyring：

[ceph@node0 cluster]$ ceph-deploy mon create-initial
[ceph_deploy.conf][DEBUG] found configuration file at: /home/ceph/.cephdeploy.conf
[ceph_deploy.cli][INFO] Invoked (1.5.34): /usr/bin/ceph-deploy mon create-initial
[ceph_deploy.cli][INFO] ceph-deploy options:
[ceph_deploy.cli][INFO] username : None
[ceph_deploy.cli][INFO] verbose : False
[ceph_deploy.cli][INFO] overwrite_conf : False
[ceph_deploy.cli][INFO] subcommand : create-initial
[ceph_deploy.cli][INFO] quiet : False
[ceph_deploy.cli][INFO] cd_conf : <ceph_deploy.conf.cephdeploy.Conf instance at 0x7fbe46804cb0>
[ceph_deploy.cli][INFO] cluster : ceph
[ceph_deploy.cli][INFO] func : <function mon at 0x7fbe467f6aa0>
[ceph_deploy.cli][INFO] ceph_conf : None
[ceph_deploy.cli][INFO] default_release : False
[ceph_deploy.cli][INFO] keyrings : None
[ceph_deploy.mon][DEBUG] Deploying mon, cluster ceph hosts node1 node2 node3
[ceph_deploy.mon][DEBUG] detecting platform for host node1 …
[node1][DEBUG] connection detected need for sudo
[node1][DEBUG] connected to host: node1
[node1][DEBUG] detect platform information from remote host
[node1][DEBUG] detect machine type
[node1][DEBUG] find the location of an executable
[ceph_deploy.mon][INFO] distro info: CentOS Linux 7.2.1511 Core
[node1][DEBUG] determining if provided host has same hostname in remote
[node1][DEBUG] get remote short hostname
[node1][DEBUG] deploying mon to node1
[node1][DEBUG] get remote short hostname
[node1][DEBUG] remote hostname: node1
[node1][DEBUG] write cluster configuration to /etc/ceph/{cluster}.conf
[node1][DEBUG] create the mon path if it does not exist
[node1][DEBUG] checking for done path: /var/lib/ceph/mon/ceph-node1/done
[node1][DEBUG] done path does not exist: /var/lib/ceph/mon/ceph-node1/done
[node1][INFO] creating keyring file: /var/lib/ceph/tmp/ceph-node1.mon.keyring
[node1][DEBUG] create the monitor keyring file
[node1][INFO] Running command: sudo ceph-mon –cluster ceph –mkfs -i node1 –keyring /var/lib/ceph/tmp/ceph-node1.mon.keyring –setuser 1001 –setgroup 1001
[node1][DEBUG] ceph-mon: mon.noname-a 192.168.92.101:6789/0 is local, renaming to mon.node1
[node1][DEBUG] ceph-mon: set fsid to 4f8f6c46-9f67-4475-9cb5-52cafecb3e4c
[node1][DEBUG] ceph-mon: created monfs at /var/lib/ceph/mon/ceph-node1 for mon.node1
[node1][INFO] unlinking keyring file /var/lib/ceph/tmp/ceph-node1.mon.keyring
[node1][DEBUG] create a done file to avoid re-doing the mon deployment
[node1][DEBUG] create the init path if it does not exist
[node1][INFO] Running command: sudo systemctl enable ceph.target
[node1][INFO] Running command: sudo systemctl enable ceph-mon@node1
[node1][WARNIN] Created symlink from /etc/systemd/system/ceph-mon.target.wants/ceph-mon@node1.service to /usr/lib/systemd/system/ceph-mon@.service.
[node1][INFO] Running command: sudo systemctl start ceph-mon@node1
[node1][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node1.asok mon_status
[node1][DEBUG] ********************************************************************************
[node1][DEBUG] status for monitor: mon.node1
[node1][DEBUG] {
[node1][DEBUG] “election_epoch”: 0,
[node1][DEBUG] “extra_probe_peers”: [
[node1][DEBUG] “192.168.92.102:6789/0”,
[node1][DEBUG] “192.168.92.103:6789/0”
[node1][DEBUG] ],
[node1][DEBUG] “monmap”: {
[node1][DEBUG] “created”: “2016-06-24 14:43:29.944474”,
[node1][DEBUG] “epoch”: 0,
[node1][DEBUG] “fsid”: “4f8f6c46-9f67-4475-9cb5-52cafecb3e4c”,
[node1][DEBUG] “modified”: “2016-06-24 14:43:29.944474”,
[node1][DEBUG] “mons”: [
[node1][DEBUG] {
[node1][DEBUG] “addr”: “192.168.92.101:6789/0”,
[node1][DEBUG] “name”: “node1”,
[node1][DEBUG] “rank”: 0
[node1][DEBUG] },
[node1][DEBUG] {
[node1][DEBUG] “addr”: “0.0.0.0:0/1”,
[node1][DEBUG] “name”: “node2”,
[node1][DEBUG] “rank”: 1
[node1][DEBUG] },
[node1][DEBUG] {
[node1][DEBUG] “addr”: “0.0.0.0:0/2”,
[node1][DEBUG] “name”: “node3”,
[node1][DEBUG] “rank”: 2
[node1][DEBUG] }
[node1][DEBUG] ]
[node1][DEBUG] },
[node1][DEBUG] “name”: “node1”,
[node1][DEBUG] “outside_quorum”: [
[node1][DEBUG] “node1”
[node1][DEBUG] ],
[node1][DEBUG] “quorum”: [],
[node1][DEBUG] “rank”: 0,
[node1][DEBUG] “state”: “probing”,
[node1][DEBUG] “sync_provider”: []
[node1][DEBUG] }
[node1][DEBUG] ********************************************************************************
[node1][INFO] monitor: mon.node1 is running
[node1][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node1.asok mon_status
[ceph_deploy.mon][DEBUG] detecting platform for host node2 …
[node2][DEBUG] connection detected need for sudo
[node2][DEBUG] connected to host: node2
[node2][DEBUG] detect platform information from remote host
[node2][DEBUG] detect machine type
[node2][DEBUG] find the location of an executable
[ceph_deploy.mon][INFO] distro info: CentOS Linux 7.2.1511 Core
[node2][DEBUG] determining if provided host has same hostname in remote
[node2][DEBUG] get remote short hostname
[node2][DEBUG] deploying mon to node2
[node2][DEBUG] get remote short hostname
[node2][DEBUG] remote hostname: node2
[node2][DEBUG] write cluster configuration to /etc/ceph/{cluster}.conf
[node2][DEBUG] create the mon path if it does not exist
[node2][DEBUG] checking for done path: /var/lib/ceph/mon/ceph-node2/done
[node2][DEBUG] done path does not exist: /var/lib/ceph/mon/ceph-node2/done
[node2][INFO] creating keyring file: /var/lib/ceph/tmp/ceph-node2.mon.keyring
[node2][DEBUG] create the monitor keyring file
[node2][INFO] Running command: sudo ceph-mon –cluster ceph –mkfs -i node2 –keyring /var/lib/ceph/tmp/ceph-node2.mon.keyring –setuser 1001 –setgroup 1001
[node2][DEBUG] ceph-mon: mon.noname-b 192.168.92.102:6789/0 is local, renaming to mon.node2
[node2][DEBUG] ceph-mon: set fsid to 4f8f6c46-9f67-4475-9cb5-52cafecb3e4c
[node2][DEBUG] ceph-mon: created monfs at /var/lib/ceph/mon/ceph-node2 for mon.node2
[node2][INFO] unlinking keyring file /var/lib/ceph/tmp/ceph-node2.mon.keyring
[node2][DEBUG] create a done file to avoid re-doing the mon deployment
[node2][DEBUG] create the init path if it does not exist
[node2][INFO] Running command: sudo systemctl enable ceph.target
[node2][INFO] Running command: sudo systemctl enable ceph-mon@node2
[node2][WARNIN] Created symlink from /etc/systemd/system/ceph-mon.target.wants/ceph-mon@node2.service to /usr/lib/systemd/system/ceph-mon@.service.
[node2][INFO] Running command: sudo systemctl start ceph-mon@node2
[node2][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node2.asok mon_status
[node2][DEBUG] ********************************************************************************
[node2][DEBUG] status for monitor: mon.node2
[node2][DEBUG] {
[node2][DEBUG] “election_epoch”: 1,
[node2][DEBUG] “extra_probe_peers”: [
[node2][DEBUG] “192.168.92.101:6789/0”,
[node2][DEBUG] “192.168.92.103:6789/0”
[node2][DEBUG] ],
[node2][DEBUG] “monmap”: {
[node2][DEBUG] “created”: “2016-06-24 14:43:34.865908”,
[node2][DEBUG] “epoch”: 0,
[node2][DEBUG] “fsid”: “4f8f6c46-9f67-4475-9cb5-52cafecb3e4c”,
[node2][DEBUG] “modified”: “2016-06-24 14:43:34.865908”,
[node2][DEBUG] “mons”: [
[node2][DEBUG] {
[node2][DEBUG] “addr”: “192.168.92.101:6789/0”,
[node2][DEBUG] “name”: “node1”,
[node2][DEBUG] “rank”: 0
[node2][DEBUG] },
[node2][DEBUG] {
[node2][DEBUG] “addr”: “192.168.92.102:6789/0”,
[node2][DEBUG] “name”: “node2”,
[node2][DEBUG] “rank”: 1
[node2][DEBUG] },
[node2][DEBUG] {
[node2][DEBUG] “addr”: “0.0.0.0:0/2”,
[node2][DEBUG] “name”: “node3”,
[node2][DEBUG] “rank”: 2
[node2][DEBUG] }
[node2][DEBUG] ]
[node2][DEBUG] },
[node2][DEBUG] “name”: “node2”,
[node2][DEBUG] “outside_quorum”: [],
[node2][DEBUG] “quorum”: [],
[node2][DEBUG] “rank”: 1,
[node2][DEBUG] “state”: “electing”,
[node2][DEBUG] “sync_provider”: []
[node2][DEBUG] }
[node2][DEBUG] ********************************************************************************
[node2][INFO] monitor: mon.node2 is running
[node2][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node2.asok mon_status
[ceph_deploy.mon][DEBUG] detecting platform for host node3 …
[node3][DEBUG] connection detected need for sudo
[node3][DEBUG] connected to host: node3
[node3][DEBUG] detect platform information from remote host
[node3][DEBUG] detect machine type
[node3][DEBUG] find the location of an executable
[ceph_deploy.mon][INFO] distro info: CentOS Linux 7.2.1511 Core
[node3][DEBUG] determining if provided host has same hostname in remote
[node3][DEBUG] get remote short hostname
[node3][DEBUG] deploying mon to node3
[node3][DEBUG] get remote short hostname
[node3][DEBUG] remote hostname: node3
[node3][DEBUG] write cluster configuration to /etc/ceph/{cluster}.conf
[node3][DEBUG] create the mon path if it does not exist
[node3][DEBUG] checking for done path: /var/lib/ceph/mon/ceph-node3/done
[node3][DEBUG] done path does not exist: /var/lib/ceph/mon/ceph-node3/done
[node3][INFO] creating keyring file: /var/lib/ceph/tmp/ceph-node3.mon.keyring
[node3][DEBUG] create the monitor keyring file
[node3][INFO] Running command: sudo ceph-mon –cluster ceph –mkfs -i node3 –keyring /var/lib/ceph/tmp/ceph-node3.mon.keyring –setuser 1001 –setgroup 1001
[node3][DEBUG] ceph-mon: mon.noname-c 192.168.92.103:6789/0 is local, renaming to mon.node3
[node3][DEBUG] ceph-mon: set fsid to 4f8f6c46-9f67-4475-9cb5-52cafecb3e4c
[node3][DEBUG] ceph-mon: created monfs at /var/lib/ceph/mon/ceph-node3 for mon.node3
[node3][INFO] unlinking keyring file /var/lib/ceph/tmp/ceph-node3.mon.keyring
[node3][DEBUG] create a done file to avoid re-doing the mon deployment
[node3][DEBUG] create the init path if it does not exist
[node3][INFO] Running command: sudo systemctl enable ceph.target
[node3][INFO] Running command: sudo systemctl enable ceph-mon@node3
[node3][WARNIN] Created symlink from /etc/systemd/system/ceph-mon.target.wants/ceph-mon@node3.service to /usr/lib/systemd/system/ceph-mon@.service.
[node3][INFO] Running command: sudo systemctl start ceph-mon@node3
[node3][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node3.asok mon_status
[node3][DEBUG] ********************************************************************************
[node3][DEBUG] status for monitor: mon.node3
[node3][DEBUG] {
[node3][DEBUG] “election_epoch”: 1,
[node3][DEBUG] “extra_probe_peers”: [
[node3][DEBUG] “192.168.92.101:6789/0”,
[node3][DEBUG] “192.168.92.102:6789/0”
[node3][DEBUG] ],
[node3][DEBUG] “monmap”: {
[node3][DEBUG] “created”: “2016-06-24 14:43:39.800046”,
[node3][DEBUG] “epoch”: 0,
[node3][DEBUG] “fsid”: “4f8f6c46-9f67-4475-9cb5-52cafecb3e4c”,
[node3][DEBUG] “modified”: “2016-06-24 14:43:39.800046”,
[node3][DEBUG] “mons”: [
[node3][DEBUG] {
[node3][DEBUG] “addr”: “192.168.92.101:6789/0”,
[node3][DEBUG] “name”: “node1”,
[node3][DEBUG] “rank”: 0
[node3][DEBUG] },
[node3][DEBUG] {
[node3][DEBUG] “addr”: “192.168.92.102:6789/0”,
[node3][DEBUG] “name”: “node2”,
[node3][DEBUG] “rank”: 1
[node3][DEBUG] },
[node3][DEBUG] {
[node3][DEBUG] “addr”: “192.168.92.103:6789/0”,
[node3][DEBUG] “name”: “node3”,
[node3][DEBUG] “rank”: 2
[node3][DEBUG] }
[node3][DEBUG] ]
[node3][DEBUG] },
[node3][DEBUG] “name”: “node3”,
[node3][DEBUG] “outside_quorum”: [],
[node3][DEBUG] “quorum”: [],
[node3][DEBUG] “rank”: 2,
[node3][DEBUG] “state”: “electing”,
[node3][DEBUG] “sync_provider”: []
[node3][DEBUG] }
[node3][DEBUG] ********************************************************************************
[node3][INFO] monitor: mon.node3 is running
[node3][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node3.asok mon_status
[ceph_deploy.mon][INFO] processing monitor mon.node1
[node1][DEBUG] connection detected need for sudo
[node1][DEBUG] connected to host: node1
[node1][DEBUG] detect platform information from remote host
[node1][DEBUG] detect machine type
[node1][DEBUG] find the location of an executable
[node1][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node1.asok mon_status
[ceph_deploy.mon][WARNIN] mon.node1 monitor is not yet in quorum, tries left: 5
[ceph_deploy.mon][WARNIN] waiting 5 seconds before retrying
[node1][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node1.asok mon_status
[ceph_deploy.mon][WARNIN] mon.node1 monitor is not yet in quorum, tries left: 4
[ceph_deploy.mon][WARNIN] waiting 10 seconds before retrying
[node1][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node1.asok mon_status
[ceph_deploy.mon][INFO] mon.node1 monitor has reached quorum!
[ceph_deploy.mon][INFO] processing monitor mon.node2
[node2][DEBUG] connection detected need for sudo
[node2][DEBUG] connected to host: node2
[node2][DEBUG] detect platform information from remote host
[node2][DEBUG] detect machine type
[node2][DEBUG] find the location of an executable
[node2][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node2.asok mon_status
[ceph_deploy.mon][INFO] mon.node2 monitor has reached quorum!
[ceph_deploy.mon][INFO] processing monitor mon.node3
[node3][DEBUG] connection detected need for sudo
[node3][DEBUG] connected to host: node3
[node3][DEBUG] detect platform information from remote host
[node3][DEBUG] detect machine type
[node3][DEBUG] find the location of an executable
[node3][INFO] Running command: sudo ceph –cluster=ceph –admin-daemon /var/run/ceph/ceph-mon.node3.asok mon_status
[ceph_deploy.mon][INFO] mon.node3 monitor has reached quorum!
[ceph_deploy.mon][INFO] all initial monitors are running and have formed quorum
[ceph_deploy.mon][INFO] Running gatherkeys…
[ceph_deploy.gatherkeys][INFO] Storing keys in temp directory /tmp/tmp5_jcSr
[node1][DEBUG] connection detected need for sudo
[node1][DEBUG] connected to host: node1
[node1][DEBUG] detect platform information from remote host
[node1][DEBUG] detect machine type
[node1][DEBUG] get remote short hostname
[node1][DEBUG] fetch remote file
[node1][INFO] Running command: sudo /usr/bin/ceph –connect-timeout=25 –cluster=ceph –admin-daemon=/var/run/ceph/ceph-mon.node1.asok mon_status
[node1][INFO] Running command: sudo /usr/bin/ceph –connect-timeout=25 –cluster=ceph –name mon. –keyring=/var/lib/ceph/mon/ceph-node1/keyring auth get-or-create client.admin osd allow * mds allow * mon allow *
[node1][INFO] Running command: sudo /usr/bin/ceph –connect-timeout=25 –cluster=ceph –name mon. –keyring=/var/lib/ceph/mon/ceph-node1/keyring auth get-or-create client.bootstrap-mds mon allow profile bootstrap-mds
[node1][INFO] Running command: sudo /usr/bin/ceph –connect-timeout=25 –cluster=ceph –name mon. –keyring=/var/lib/ceph/mon/ceph-node1/keyring auth get-or-create client.bootstrap-osd mon allow profile bootstrap-osd
[node1][INFO] Running command: sudo /usr/bin/ceph –connect-timeout=25 –cluster=ceph –name mon. –keyring=/var/lib/ceph/mon/ceph-node1/keyring auth get-or-create client.bootstrap-rgw mon allow profile bootstrap-rgw
[ceph_deploy.gatherkeys][INFO] Storing ceph.client.admin.keyring
[ceph_deploy.gatherkeys][INFO] Storing ceph.bootstrap-mds.keyring
[ceph_deploy.gatherkeys][INFO] keyring ‘ceph.mon.keyring’ already exists
[ceph_deploy.gatherkeys][INFO] Storing ceph.bootstrap-osd.keyring
[ceph_deploy.gatherkeys][INFO] Storing ceph.bootstrap-rgw.keyring
[ceph_deploy.gatherkeys][INFO] Destroy temp directory /tmp/tmp5_jcSr
[ceph@node0 cluster]$

查看生成的文件

[ceph@node0 cluster]$ ls
ceph.bootstrap-mds.keyring ceph.bootstrap-rgw.keyring ceph.conf ceph.mon.keyring
ceph.bootstrap-osd.keyring ceph.client.admin.keyring ceph-deploy-ceph.log
[ceph@node0 cluster]$

6 OSD 管理
6.1 初始化 OSD
命令

ceph-deploy osd prepare {ceph-node}:/path/to/directory

示例，如 1.2.3 所示

[ceph@node0 cluster]$ ceph-deploy osd prepare node1:/dev/sdb
[ceph_deploy.conf][DEBUG] found configuration file at: /home/ceph/.cephdeploy.conf
[ceph_deploy.cli][INFO] Invoked (1.5.34): /usr/bin/ceph-deploy osd prepare node1:/dev/sdb
[ceph_deploy.cli][INFO] ceph-deploy options:
[ceph_deploy.cli][INFO] username : None
[ceph_deploy.cli][INFO] disk : [(‘node1’, ‘/dev/sdb’, None)]
[ceph_deploy.cli][INFO] dmcrypt : False
[ceph_deploy.cli][INFO] verbose : False
[ceph_deploy.cli][INFO] bluestore : None
[ceph_deploy.cli][INFO] overwrite_conf : False
[ceph_deploy.cli][INFO] subcommand : prepare
[ceph_deploy.cli][INFO] dmcrypt_key_dir : /etc/ceph/dmcrypt-keys
[ceph_deploy.cli][INFO] quiet : False
[ceph_deploy.cli][INFO] cd_conf : <ceph_deploy.conf.cephdeploy.Conf instance at 0x10b4d88>
[ceph_deploy.cli][INFO] cluster : ceph
[ceph_deploy.cli][INFO] fs_type : xfs
[ceph_deploy.cli][INFO] func : <function osd at 0x10a9398>
[ceph_deploy.cli][INFO] ceph_conf : None
[ceph_deploy.cli][INFO] default_release : False
[ceph_deploy.cli][INFO] zap_disk : False
[ceph_deploy.osd][DEBUG] Preparing cluster ceph disks node1:/dev/sdb:
[node1][DEBUG] connection detected need for sudo
[node1][DEBUG] connected to host: node1
[node1][DEBUG] detect platform information from remote host
[node1][DEBUG] detect machine type
[node1][DEBUG] find the location of an executable
[ceph_deploy.osd][INFO] Distro info: CentOS Linux 7.2.1511 Core
[ceph_deploy.osd][DEBUG] Deploying osd to node1
[node1][DEBUG] write cluster configuration to /etc/ceph/{cluster}.conf
[ceph_deploy.osd][DEBUG] Preparing host node1 disk /dev/sdb journal None activate False
[node1][DEBUG] find the location of an executable
[node1][INFO] Running command: sudo /usr/sbin/ceph-disk -v prepare –cluster ceph –fs-type xfs — /dev/sdb
[node1][WARNIN] command: Running command: /usr/bin/ceph-osd –cluster=ceph –show-config-value=fsid
[node1][WARNIN] command: Running command: /usr/bin/ceph-osd –check-allows-journal -i 0 –cluster ceph
[node1][WARNIN] command: Running command: /usr/bin/ceph-osd –check-wants-journal -i 0 –cluster ceph
[node1][WARNIN] command: Running command: /usr/bin/ceph-osd –check-needs-journal -i 0 –cluster ceph
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] set_type: Will colocate journal with data on /dev/sdb
[node1][WARNIN] command: Running command: /usr/bin/ceph-osd –cluster=ceph –show-config-value=osd_journal_size
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] command: Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_mkfs_options_xfs
[node1][WARNIN] command: Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_fs_mkfs_options_xfs
[node1][WARNIN] command: Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_mount_options_xfs
[node1][WARNIN] command: Running command: /usr/bin/ceph-conf –cluster=ceph –name=osd. –lookup osd_fs_mount_options_xfs
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] ptype_tobe_for_name: name = journal
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] create_partition: Creating journal partition num 2 size 5120 on /dev/sdb
[node1][WARNIN] command_check_call: Running command: /sbin/sgdisk –new=2:0:+5120M –change-name=2:ceph journal –partition-guid=2:75a991e0-d8e1-414f-825d-1635edc8fbe5 –typecode=2:45b0969e-9b03-4f30-b4c6-b4b80ceff106 –mbrtogpt — /dev/sdb
[node1][DEBUG] The operation has completed successfully.
[node1][WARNIN] update_partition: Calling partprobe on created device /dev/sdb
[node1][WARNIN] command_check_call: Running command: /usr/bin/udevadm settle –timeout=600
[node1][WARNIN] command: Running command: /sbin/partprobe /dev/sdb
[node1][WARNIN] command_check_call: Running command: /usr/bin/udevadm settle –timeout=600
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb2 uuid path is /sys/dev/block/8:18/dm/uuid
[node1][WARNIN] prepare_device: Journal is GPT partition /dev/disk/by-partuuid/75a991e0-d8e1-414f-825d-1635edc8fbe5
[node1][WARNIN] prepare_device: Journal is GPT partition /dev/disk/by-partuuid/75a991e0-d8e1-414f-825d-1635edc8fbe5
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] set_data_partition: Creating osd partition on /dev/sdb
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] ptype_tobe_for_name: name = data
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] create_partition: Creating data partition num 1 size 0 on /dev/sdb
[node1][WARNIN] command_check_call: Running command: /sbin/sgdisk –largest-new=1 –change-name=1:ceph data –partition-guid=1:25ae7735-d1ca-45d5-9d98-63567b424248 –typecode=1:89c57f98-2fe5-4dc0-89c1-f3ad0ceff2be –mbrtogpt — /dev/sdb
[node1][DEBUG] The operation has completed successfully.
[node1][WARNIN] update_partition: Calling partprobe on created device /dev/sdb
[node1][WARNIN] command_check_call: Running command: /usr/bin/udevadm settle –timeout=600
[node1][WARNIN] command: Running command: /sbin/partprobe /dev/sdb
[node1][WARNIN] command_check_call: Running command: /usr/bin/udevadm settle –timeout=600
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb1 uuid path is /sys/dev/block/8:17/dm/uuid
[node1][WARNIN] populate_data_path_device: Creating xfs fs on /dev/sdb1
[node1][WARNIN] command_check_call: Running command: /sbin/mkfs -t xfs -f -i size=2048 — /dev/sdb1
[node1][DEBUG] meta-data=/dev/sdb1 isize=2048 agcount=4, agsize=982975 blks
[node1][DEBUG] = sectsz=512 attr=2, projid32bit=1
[node1][DEBUG] = crc=0 finobt=0
[node1][DEBUG] data = bsize=4096 blocks=3931899, imaxpct=25
[node1][DEBUG] = sunit=0 swidth=0 blks
[node1][DEBUG] naming =version 2 bsize=4096 ascii-ci=0 ftype=0
[node1][DEBUG] log =internal log bsize=4096 blocks=2560, version=2
[node1][DEBUG] = sectsz=512 sunit=0 blks, lazy-count=1
[node1][DEBUG] realtime =none extsz=4096 blocks=0, rtextents=0
[node1][WARNIN] mount: Mounting /dev/sdb1 on /var/lib/ceph/tmp/mnt.6_6ywP with options noatime,inode64
[node1][WARNIN] command_check_call: Running command: /usr/bin/mount -t xfs -o noatime,inode64 — /dev/sdb1 /var/lib/ceph/tmp/mnt.6_6ywP
[node1][WARNIN] command: Running command: /sbin/restorecon /var/lib/ceph/tmp/mnt.6_6ywP
[node1][WARNIN] populate_data_path: Preparing osd data dir /var/lib/ceph/tmp/mnt.6_6ywP
[node1][WARNIN] command: Running command: /sbin/restorecon -R /var/lib/ceph/tmp/mnt.6_6ywP/ceph_fsid.14578.tmp
[node1][WARNIN] command: Running command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/tmp/mnt.6_6ywP/ceph_fsid.14578.tmp
[node1][WARNIN] command: Running command: /sbin/restorecon -R /var/lib/ceph/tmp/mnt.6_6ywP/fsid.14578.tmp
[node1][WARNIN] command: Running command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/tmp/mnt.6_6ywP/fsid.14578.tmp
[node1][WARNIN] command: Running command: /sbin/restorecon -R /var/lib/ceph/tmp/mnt.6_6ywP/magic.14578.tmp
[node1][WARNIN] command: Running command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/tmp/mnt.6_6ywP/magic.14578.tmp
[node1][WARNIN] command: Running command: /sbin/restorecon -R /var/lib/ceph/tmp/mnt.6_6ywP/journal_uuid.14578.tmp
[node1][WARNIN] command: Running command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/tmp/mnt.6_6ywP/journal_uuid.14578.tmp
[node1][WARNIN] adjust_symlink: Creating symlink /var/lib/ceph/tmp/mnt.6_6ywP/journal -> /dev/disk/by-partuuid/75a991e0-d8e1-414f-825d-1635edc8fbe5
[node1][WARNIN] command: Running command: /sbin/restorecon -R /var/lib/ceph/tmp/mnt.6_6ywP
[node1][WARNIN] command: Running command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/tmp/mnt.6_6ywP
[node1][WARNIN] unmount: Unmounting /var/lib/ceph/tmp/mnt.6_6ywP
[node1][WARNIN] command_check_call: Running command: /bin/umount — /var/lib/ceph/tmp/mnt.6_6ywP
[node1][WARNIN] get_dm_uuid: get_dm_uuid /dev/sdb uuid path is /sys/dev/block/8:16/dm/uuid
[node1][WARNIN] command_check_call: Running command: /sbin/sgdisk –typecode=1:4fbd7e29-9d25-41b8-afd0-062c0ceff05d — /dev/sdb
[node1][DEBUG] The operation has completed successfully.
[node1][WARNIN] update_partition: Calling partprobe on prepared device /dev/sdb
[node1][WARNIN] command_check_call: Running command: /usr/bin/udevadm settle –timeout=600
[node1][WARNIN] command: Running command: /sbin/partprobe /dev/sdb
[node1][WARNIN] command_check_call: Running command: /usr/bin/udevadm settle –timeout=600
[node1][WARNIN] command_check_call: Running command: /usr/bin/udevadm trigger –action=add –sysname-match sdb1
[node1][INFO] checking OSD status…
[node1][DEBUG] find the location of an executable
[node1][INFO] Running command: sudo /bin/ceph –cluster=ceph osd stat –format=json
[ceph_deploy.osd][DEBUG] Host node1 is now ready for osd use.
[ceph@node0 cluster]$

6.2 激活 OSD
命令：

ceph-deploy osd activate {ceph-node}:/path/to/directory

示例：

[ceph@node0 cluster]$ ceph-deploy osd activate node2:/var/local/osd0 node3:/var/local/osd0

查询状态：

[ceph@node1 ~]$ ceph -s 编辑 HTML 源代码
cluster 4f8f6c46-9f67-4475-9cb5-52cafecb3e4c
health HEALTH_WARN
64 pgs degraded
64 pgs stuck unclean
64 pgs undersized
mon.node2 low disk space
mon.node3 low disk space
monmap e1: 3 mons at {node1=192.168.92.101:6789/0,node2=192.168.92.102:6789/0,node3=192.168.92.103:6789/0}
election epoch 18, quorum 0,1,2 node1,node2,node3
osdmap e12: 3 osds: 3 up, 3 in
flags sortbitwise
pgmap v173: 64 pgs, 1 pools, 0 bytes data, 0 objects
20254 MB used, 22120 MB / 42374 MB avail
64 active+undersized+degraded
[ceph@node1 ~]$

[ceph@node1 ~]$ ceph -s
cluster 4f8f6c46-9f67-4475-9cb5-52cafecb3e4c
health HEALTH_WARN
64 pgs degraded
64 pgs stuck unclean
64 pgs undersized
mon.node2 low disk space
mon.node3 low disk space
monmap e1: 3 mons at {node1=192.168.92.101:6789/0,node2=192.168.92.102:6789/0,node3=192.168.92.103:6789/0}
election epoch 18, quorum 0,1,2 node1,node2,node3
osdmap e12: 3 osds: 3 up, 3 in
flags sortbitwise
pgmap v173: 64 pgs, 1 pools, 0 bytes data, 0 objects
20254 MB used, 22120 MB / 42374 MB avail
64 active+undersized+degraded
[ceph@node1 ~]$

6.3 删除 OSD

[ceph@node1 cluster]$ cat rmosd.sh
###############################################################################
# Author : younger_liucn@126.com
# File Name : rmosd.sh
# Description :
#
###############################################################################
#!/bin/bash
if [$# != 1]; then
echo “Error!”;
exit 1;
fi
ID=${1}
sudo systemctl stop ceph-osd@${ID}
ceph osd crush remove osd.${ID}
ceph osd down ${ID}
ceph auth del osd.${ID}
ceph osd rm ${ID}
[ceph@node1 cluster]$

6.4 查看 OSD tree

[ceph@node1 cluster]$ ceph osd tree
ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY
-1 0.05835 root default
-2 0.01459 host node1
1 0.01459 osd.1 up 1.00000 1.00000
-3 0.01459 host node3
3 0.01459 osd.3 up 1.00000 1.00000
-4 0.01459 host node0
0 0.01459 osd.0 up 1.00000 1.00000
-5 0.01459 host node2
2 0.01459 osd.2 up 1.00000 1.00000
[ceph@node1 cluster]$

7 设置 ceph 集群自启动
在各节点需要执行如下命令：

[ceph@node0 cluster]$ sudo systemctl enable ceph-mon.target
[ceph@node0 cluster]$ sudo systemctl enable ceph-osd.target
[ceph@node0 cluster]$ sudo systemctl enable ceph.target

便捷执行

[ceph@node0 cluster]$ ssh node0 “sudo systemctl enable ceph-mon.target;sudo systemctl enable ceph-osd.target;sudo systemctl enable ceph.target”
[ceph@node0 cluster]$ ssh node1 “sudo systemctl enable ceph-mon.target;sudo systemctl enable ceph-osd.target;sudo systemctl enable ceph.target”
[ceph@node0 cluster]$ ssh node2 “sudo systemctl enable ceph-mon.target;sudo systemctl enable ceph-osd.target;sudo systemctl enable ceph.target”
[ceph@node0 cluster]$ ssh node3 “sudo systemctl enable ceph-mon.target;sudo systemctl enable ceph-osd.target;sudo systemctl enable ceph.target”
[ceph@node0 cluster]$

在 CentOS 7.1 上安装分布式存储系统 Ceph http://www.linuxidc.com/Linux/2015-08/120990.htm

Ceph 环境配置文档 PDF http://www.linuxidc.com/Linux/2013-05/85212.htm

CentOS 6.3 上部署 Ceph http://www.linuxidc.com/Linux/2013-05/85213.htm

Ceph 的安装过程 http://www.linuxidc.com/Linux/2013-05/85210.htm

如何升级 Ceph 版本及注意事项 http://www.linuxidc.com/Linux/2017-02/140631.htm

HOWTO Install Ceph On FC12, FC 上安装 Ceph 分布式文件系统 http://www.linuxidc.com/Linux/2013-05/85209.htm

实验环境 Ceph 9.2.1 部署笔记 http://www.linuxidc.com/Linux/2016-11/137094.htm

Ubuntu 12.04 Ceph 分布式文件系统 http://www.linuxidc.com/Linux/2013-04/82588.htm

Ubuntu 16.04 快速安装 Ceph 集群 http://www.linuxidc.com/Linux/2016-09/135261.htm

Ceph 的详细介绍：请点这里
Ceph 的下载地址：请点这里

本文永久更新链接地址：http://www.linuxidc.com/Linux/2017-02/140728.htm

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