https://blog.csdn.net/Greenchess/article/details/77525786
软件环境:
- Centos7 x64
CEPH版本 :
- ceph-deploy v1.5.37
- ceph version 10.2.9
步骤1.修改主机名(即节点名)
1)
sed -i ‘/HOSTNAME/d’ /etc/sysconfig/network
echo “HOSTNAME=主机名” >> /etc/sysconfig/network
cat /etc/sysconfig/network
2)
echo “IP地址 主机名” >> /etc/hosts
cat /etc/hosts
3)
hostname cydb
hostname -f
重启
步骤2.配置SSH
ssh-keygen -t rsa -P ” -f ~/.ssh/id_rsa(-t rsa用RSA加密,-P ‘’空密码,-f保存密码的位置)
ssh-copy-id [email protected]主机名
步骤3.配置firewall
(开启6789端口给MON,6800-7100端口给OSD)
firewall-cmd –zone=public –add-port=6789/tcp –permanent
firewall-cmd –zone=public –add-port=6800-7100/tcp –permanent
firewall-cmd –reload
firewall-cmd –zone=public –list-all
步骤4.关闭selinux
setenforce 0
sed -i s’/SELINUX.*=.*enforcing/SELINUX=disabled’/g /etc/selinux/config
cat /etc/selinux/config
可看到SELINUX=disabled
步骤5.
yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
步骤6.添加ceph.repo文件(把软件包源加入软件仓库)
sudo vim /etc/yum.repos.d/ceph.repo
写入
[ceph-noarch]
name=Ceph noarch packages
baseurl=https://download.ceph.com/rpm-jewel/el7/noarch
enabled=1
gpgcheck=1
type=rpm-md
gpgkey=https://download.ceph.com/keys/release.asc
步骤7 安装ceph-deploy(要更新软件库)
sudo yum update
sudo yum install ceph-deploy
检查是否安装成功:ceph-deploy –help
步骤8.部署cluster(集群)
mkdir /opt/ceph-cluster
cd /opt/ceph-cluster
ceph-deploy new 节点名
(这时可以ls一下当前目录,会有一个ceph配置文件、一个monitor密钥环。一个日志文件。)
echo “osd crush chooseleaf type = 0” >> ceph.conf
echo “osd pool default size = 1” >> ceph.conf
echo “osd journal size = 100” >> ceph.conf
cat ceph.conf
步骤9.安装ceph
修改ceph源(外国的源总是timeout)
export CEPH_DEPLOY_REPO_URL=http://mirrors.163.com/ceph/rpm-jewel/el7
export CEPH_DEPLOY_GPG_URL=http://mirrors.163.com/ceph/keys/release.asc
安装ceph
ceph-deploy install 节点名
报错则运行yum remove -y ceph-release之后重新安装ceph
检查是否安装成功:ceph –version
步骤10.部署Monitor
ceph-deploy mon create-initial
检查集群状态:ceph -s
(显示现在是HEALTH_ERR不健康状态)
步骤11.部署两个OSD
1)准备两个块设备(可以是硬盘也可以是LVM卷),这里我们使用LVM(逻辑卷)
dd if=/dev/zero of=ceph-volumes.img bs=1M count=8192 oflag=direct
sgdisk -g –clear ceph-volumes.img
sudo vgcreate ceph-volumes $(sudo losetup –show -f ceph-volumes.img)
sudo lvcreate -L2G -nceph0 ceph-volumes
sudo lvcreate -L2G -nceph1 ceph-volumes
sudo mkfs.xfs -f /dev/ceph-volumes/ceph0
sudo mkfs.xfs -f /dev/ceph-volumes/ceph1
mkdir -p /srv/ceph/{osd0,osd1,mon0,mds0}
sudo mount /dev/ceph-volumes/ceph0 /srv/ceph/osd0
sudo mount /dev/ceph-volumes/ceph1 /srv/ceph/osd1
创建了两个虚拟磁盘ceph0和ceph1并分别挂载到/srv/ceph/osd0和/srv/ceph/osd1目录下
2)挂载两个OSD
ceph-deploy osd prepare monster:/srv/ceph/osd0
ceph-deploy osd prepare monster:/srv/ceph/osd1
3)激活两个OSD
ceph-deploy osd activate monster:/srv/ceph/osd0
ceph-deploy osd activate monster:/srv/ceph/osd1
报错:RuntimeError: Failed to execute command: ceph-disk -v activate –mark-init upstart –mount /srv/ceph/osd0
解决:使用命令 sudo chown ceph:ceph /srv/ceph/osd0,然后重新激活
步骤12.复制admin密钥到其他节点
ceph-deploy admin monster
验证:
ceph的安装状态:ceph -s
ceph集群健康状态:ceph -w
ceph monitor仲裁状态:ceph quorum_status –format json-pretty
ceph mon stat
ceph osd stat
ceph osd tree(显示crush图)
ceph pg stat
ceph auth list(集群的认证密码)
如果碰到麻烦,要从头再来,可以用下列命令清楚配置:
ceph-deploy purgedata {ceph-node} [{ceph-node}]
ceph-deploy forgetkeys
用下列命令可以连 Ceph 安装包一起清除:
ceph-deploy purge {ceph-node} [{ceph-node}]
之后必须重新安装 Ceph
参考文章:http://www.cnblogs.com/YaoDD/p/5217578.htmlUbuntu 14.04 单机安装 CEPH
最后附上一个ceph入门很好的博客地址,讲的都是重点,清楚易懂:
http://www.cnblogs.com/bodhitree/p/4831626.html
还有一个主要讲crush算法的:
http://www.cnblogs.com/chenxianpao/p/5568207.html
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作者:Green77
来源:CSDN
原文:https://blog.csdn.net/Greenchess/article/details/77525786
版权声明:本文为博主原创文章,转载请附上博文链接!
原文地址:https://www.cnblogs.com/wangmo/p/11093169.html