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CentOS 7 x64 安装 Ceph 二， 实验环境 节点 IP 主机名 系统 MON 172.24.0.13 ceph-mon0 CentOS 7 X64 MDS 172.24.0.13 ceph-mds0 CentOS 7 X64 OSD0 172.24.0.14 ceph-osd0 CentOS 7 X64 OSD1 172.24.0.14 ceph-osd1 CentOS 7 X64 client 三、安装步骤 1、首先建立机器SSH互信关系 生成密钥 ssh-keygen -t rsa -P '' ssh-keygen -t rsa -f .ssh/id_rsa -P '' 向被授权的主机上拷贝 ssh-copy-id -i .ssh/id_rsa.pub root@主机 -------------------------------------------------------- ssh-copy-id -i .ssh/id_rsa.pub root@172.24.0.13 ssh-copy-id -i .ssh/id_rsa.pub root@172.24.0.14 -------------------------------------------------------- 配置所有主机时间同步 安装ntpdate yum -y install ntpdate 开始同步时间 ntpdate time.windows.com 修改每台机器的主机名 (hostname) ( mon,mds,osd,client 都必须设置 ) ------------------------------------------------------------------------------------ echo 172.24.0.13 ceph-mon0 >> /etc/hosts echo 172.24.0.13 ceph-mds0 >> /etc/hosts echo 172.24.0.14 ceph-osd0 >> /etc/hosts echo 172.24.0.14 ceph-osd1 >> /etc/hosts ------------------------------------------------------------------------------------ yum更新，安装相关依赖包(适用于mon,mds,osd) ------------------------------------------------------------------------------------- rpm --import 'https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc' rpm -Uvh http://mirrors.yun-idc.com/epel/7/x86_64/e/epel-release-7-5.noarch.rpm yum install snappy leveldb gdisk python-argparse gperftools-libs -y rpm -Uvh http://ceph.com/rpm-dumpling/el7/noarch/ceph-release-1-0.el7.centos.noarch.rpm yum install ceph-deploy -y yum install ceph -y yum install btrfs-progs (适用于所有osd) ------------------------------------------------------------------------------------- 配置/etc/ceph/ceph.conf， (适用于mon,mds,osd) vi /etc/ceph/ceph.conf ------------------------------------------------------------------------------------------------ [global] public network = 172.24.0.0/24 pid file = /var/run/ceph/$name.pid auth cluster required = none auth service required = none auth client required = none keyring = /etc/ceph/keyring.$name osd pool default size = 1 osd pool default min size = 1 osd pool default crush rule = 0 osd crush chooseleaf type = 1 [mon] mon data = /var/lib/ceph/mon/$name mon clock drift allowed = .15 keyring = /etc/ceph/keyring.$name [mon.0] host = ceph-mon0 mon addr = 172.24.0.13:6789 [mds] keyring = /etc/ceph/keyring.$name [mds.0] host = ceph-mds0 [osd] osd data = /mnt/osd$id osd recovery max active = 5 osd mkfs type = xfs osd journal = /mnt/osd$id/journal osd journal size = 1000 keyring = /etc/ceph/keyring.$name [osd.0] host = ceph-osd0 devs = /dev/mapper/centos-osd0 [osd.1] host = ceph-osd1 devs = /dev/mapper/centos-osd1 ---------------------------------------------------------------------------------------------------- 创建目录 ( osd ) mkdir /mnt/osd0 mkdir /mnt/osd1 启动ceph(在mon上执行) 初始化： mkcephfs -a -c /etc/ceph/ceph.conf /etc/init.d/ceph -a start ( #遇到 Error ENOENT: osd.0 does not exist. create it before updating the crush map ) 执行如下代码: ceph osd create 然后在执行 /etc/init.d/ceph -a start 既可完成 执行健康检查 ceph health #也可以使用ceph -s命令查看状态 (如果返回的是HEALTH_OK，则代表成功！) 挂载ceph (172.24.0.15 为客户端) mon推荐有至少3个，假如挂掉一个、服务也能正常使用 client0的CentOS7默认没有开启ceph_fs的内核，需要更改内核，这里直接用yum更新（可以手工编译） 使用elrepo提供的, 已经编译好的内核 rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm yum install -y yum-plugin-fastestmirror yum --enablerepo=elrepo-kernel install kernel-ml kernel-ml-devel grub2-set-default 0 reboot 重启服务器 mkdir /opt/ceph 1. ceph-fuse -m 172.24.0.13:6789 /opt/ceph 2. mount -t ceph 172.24.0.13:6789/ /opt/ceph #这里的密钥，是mon /etc/ceph/ keyring.client.admin 中的内容。 多个 mon 可使用,号分开 如：ceph-fuse -m 172.24.0.13:6789,172.24.0.14:6789,172.24.0.15:6789 /opt/ceph (责任编辑：IT) |