ceph部署

2020年06月16日 阅读数:57
这篇文章主要向大家介绍ceph部署,主要内容包括基础应用、实用技巧、原理机制等方面,希望对大家有所帮助。
前言:
      不少朋友想学ceph,可是开始ceph部署就让初学者举步为艰,ceph部署时因为国外源的问题(具体你们应该懂得),下载和安装软件便会卡住,中止不前。即便配置搭建了国内源后,执行ceph-deploy install 时又跑去了国外的源下载,非常无语呀!!!这样致使咱们停下了学习ceph的脚步,因此笔者就在这里编写了这篇文章,只要掌握了经过国内源找到并下载对应正确的ceph版本rpm包到本地,部署ceph简直小意思!
1、部署准备:
准备5台机器(linux系统为centos7.6版本),固然也能够至少3台机器并充当部署节点和客户端,能够与ceph节点共用:
    1台部署节点(配一块硬盘,运行ceph-depoly)
    3台ceph节点(配两块硬盘,第一块为系统盘并运行mon,第二块做为osd数据盘)
    1台客户端(可使用ceph提供的文件系统,块存储,对象存储)
 
(1)全部ceph集群节点(包括客户端)设置静态域名解析;
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127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
172.16.254.163 dlp
172.16.254.64 node1
172.16.254.65 node2
172.16.254.66 node3
172.16.254.63 controller
(2)全部集群节点(包括客户端)建立cent用户,并设置密码,后执行以下命令:
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useradd cent && echo "123" | passwd --stdin cent
echo -e 'Defaults:cent !requiretty\ncent ALL = (root) NOPASSWD:ALL' | tee /etc/sudoers.d/ceph
chmod 440 /etc/sudoers.d/ceph
(3)在部署节点切换为cent用户,设置无密钥登录各节点包括客户端节点
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ceph@dlp15:17:01~#ssh-keygen
ceph@dlp15:17:01~#ssh-copy-id con1
ceph@dlp15:17:01~#ssh-copy-id con2
ceph@dlp15:17:01~#ssh-copy-id con3
ceph@dlp15:17:01~#ssh-copy-id controller
(4)在部署节点切换为cent用户,在cent用户家目录,设置以下文件:vi~/.ssh/config# create new ( define all nodes and users )
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Host dlp
      Hostname dlp
      User cent
Host node1
      Hostname node1
      User cent
Host node2
      Hostname node2
      User cent
Host node3
      Hostname node3
      User cent
 
chmod 600 ~/.ssh/config
 
2、全部节点配置国内ceph源:
(1)all-node(包括客户端)在/etc/yum.repos.d/建立 ceph-yunwei.repo
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[ceph-yunwei]
name=ceph-yunwei-install
baseurl=https://mirrors.aliyun.com/centos/7.6.1810/storage/x86_64/ceph-jewel/
enable=1
gpgcheck=0
或者也能够将如上内容添加到现有的 CentOS-Base.repo 中。
 
(2)到国内ceph源中 https://mirrors.aliyun.com/centos/7.6.1810/storage/x86_64/ceph-jewel/下载以下所需rpm包。注意:红色框中为ceph-deploy的rpm,只须要在部署节点安装,下载须要到 https://mirrors.aliyun.com/ceph/rpm-jewel/el7/noarch/中找到最新对应的ceph-deploy-xxxxx.noarch.rpm 下载
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ceph-10.2.11-0.el7.x86_64.rpm
ceph-base-10.2.11-0.el7.x86_64.rpm
ceph-common-10.2.11-0.el7.x86_64.rpm
ceph-deploy-1.5.39-0.noarch.rpm
ceph-devel-compat-10.2.11-0.el7.x86_64.rpm
cephfs-java-10.2.11-0.el7.x86_64.rpm
ceph-fuse-10.2.11-0.el7.x86_64.rpm
ceph-libs-compat-10.2.11-0.el7.x86_64.rpm
ceph-mds-10.2.11-0.el7.x86_64.rpm
ceph-mon-10.2.11-0.el7.x86_64.rpm
ceph-osd-10.2.11-0.el7.x86_64.rpm
ceph-radosgw-10.2.11-0.el7.x86_64.rpm
ceph-resource-agents-10.2.11-0.el7.x86_64.rpm
ceph-selinux-10.2.11-0.el7.x86_64.rpm
ceph-test-10.2.11-0.el7.x86_64.rpm
libcephfs1-10.2.11-0.el7.x86_64.rpm
libcephfs1-devel-10.2.11-0.el7.x86_64.rpm
libcephfs_jni1-10.2.11-0.el7.x86_64.rpm
libcephfs_jni1-devel-10.2.11-0.el7.x86_64.rpm
librados2-10.2.11-0.el7.x86_64.rpm
librados2-devel-10.2.11-0.el7.x86_64.rpm
libradosstriper1-10.2.11-0.el7.x86_64.rpm
libradosstriper1-devel-10.2.11-0.el7.x86_64.rpm
librbd1-10.2.11-0.el7.x86_64.rpm
librbd1-devel-10.2.11-0.el7.x86_64.rpm
librgw2-10.2.11-0.el7.x86_64.rpm
librgw2-devel-10.2.11-0.el7.x86_64.rpm
python-ceph-compat-10.2.11-0.el7.x86_64.rpm
python-cephfs-10.2.11-0.el7.x86_64.rpm
python-rados-10.2.11-0.el7.x86_64.rpm
python-rbd-10.2.11-0.el7.x86_64.rpm
rbd-fuse-10.2.11-0.el7.x86_64.rpm
rbd-mirror-10.2.11-0.el7.x86_64.rpm
rbd-nbd-10.2.11-0.el7.x86_64.rpm
(3)将下载好的rpm拷贝到全部节点,并安装。注意ceph-deploy-xxxxx.noarch.rpm 只有部署节点用到,其余节点不须要,部署节点也须要安装其他的rpm
 
(4)在部署节点(cent用户下执行):安装 ceph-deploy,在root用户下,进入下载好的rpm包目录,执行:
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yum localinstall -y ./*
(或者sudo yum install ceph-deploy)
建立ceph工做目录
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mkdir ceph &&  cd ceph
注意:如遇到以下报错:
 
处理办法1:
可能不能安装成功,报以下问题:将python-distribute remove 再进行安装(或者 yum remove  python-setuptools -y)
 
注意:若是不是安装上述方法添加的rpm,用的是网络源,每一个节点必须yum install ceph ceph-radosgw -y
处理办法2:
安装依赖包:python-distribute
root@bushu12:16:46~/cephjrpm# yum install python-distribute -y
已加载插件:fastestmirror, langpacks
Loading mirror speeds from cached hostfile
软件包 python-setuptools 已经被 python2-setuptools 取代,改成尝试安装 python2-setuptools-22.0.5-1.el7.noarch
正在解决依赖关系--> 正在检查事务---> 软件包 python2-setuptools.noarch.0.22.0.5-1.el7 将被 安装--> 解决依赖关系完成
 
依赖关系解决
=============================================================================================================================
 Package                           架构                  版本                           源                              大小=============================================================================================================================
正在安装:
 python2-setuptools                noarch                22.0.5-1.el7                   openstack-ocata                485 k
 
事务概要=============================================================================================================================
安装  1 软件包
 
总下载量:485 k
安装大小:1.8 M
Downloading packages:
python2-setuptools-22.0.5-1.el7.noarch.rpm                                                            | 485 kB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  正在安装    : python2-setuptools-22.0.5-1.el7.noarch                                                                   1/1 
  验证中      : python2-setuptools-22.0.5-1.el7.noarch                                                                   1/1 
 
已安装:
  python2-setuptools.noarch 0:22.0.5-1.el7                                                                                   
 
完毕!
 
再次安装 :ceph-deploy-1.5.39-0.noarch.rpm -y
 
root@bushu12:22:12~/cephjrpm# yum localinstall ceph-deploy-1.5.39-0.noarch.rpm -y
已加载插件:fastestmirror, langpacks
正在检查 ceph-deploy-1.5.39-0.noarch.rpm: ceph-deploy-1.5.39-0.noarch
ceph-deploy-1.5.39-0.noarch.rpm 将被安装
正在解决依赖关系--> 正在检查事务---> 软件包 ceph-deploy.noarch.0.1.5.39-0 将被 安装--> 正在处理依赖关系 python-distribute,它被软件包 ceph-deploy-1.5.39-0.noarch 须要
Loading mirror speeds from cached hostfile
软件包 python-setuptools-0.9.8-7.el7.noarch 被已安装的 python2-setuptools-22.0.5-1.el7.noarch 取代--> 解决依赖关系完成
错误:软件包:ceph-deploy-1.5.39-0.noarch (/ceph-deploy-1.5.39-0.noarch)
          须要:python-distribute
          可用: python-setuptools-0.9.8-7.el7.noarch (base)
              python-distribute = 0.9.8-7.el7
 您能够尝试添加 --skip-broken 选项来解决该问题
 您能够尝试执行:rpm -Va --nofiles --nodigest
 
删除:python2-setuptools-22.0.5-1.el7.noarch
 
root@bushu12:25:30~/cephjrpm# yum remove python2-setuptools-22.0.5-1.el7.noarch -y
已加载插件:fastestmirror, langpacks
正在解决依赖关系--> 正在检查事务---> 软件包 python2-setuptools.noarch.0.22.0.5-1.el7 将被 删除--> 解决依赖关系完成
 
依赖关系解决
=============================================================================================================================
 Package                           架构                  版本                          源                               大小=============================================================================================================================
正在删除:
 python2-setuptools                noarch                22.0.5-1.el7                  @openstack-ocata                1.8 M
 
事务概要=============================================================================================================================
移除  1 软件包
 
安装大小:1.8 M
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  正在删除    : python2-setuptools-22.0.5-1.el7.noarch                                                                   1/1 
  验证中      : python2-setuptools-22.0.5-1.el7.noarch                                                                   1/1 
 
删除:
  python2-setuptools.noarch 0:22.0.5-1.el7                                                                                   
 
完毕!
 
由于目前的源用的是上面黄色标记openstack-ocata源,安装版本就成了python2-setuptools-22.0.5-1.el7.noarch,因此修改yum源后,只要保证安装 python-setuptools 版本是 0.9.8-7.el7 就能够经过了,以下把openstack-ocata 源移走或者删除:
 
root@dlp10:30:02/etc/yum.repos.d# mv rdo-release-yunwei.repo old/
root@dlp10:30:11/etc/yum.repos.d# ls
Centos7-Base-yunwei.repo  ceph-yunwei.repo  epel-testing.repo  old
ceph.repo                 epel.repo         epel-yunwei.repo
root@dlp10:30:11/etc/yum.repos.d#
root@dlp10:30:12/etc/yum.repos.d#
root@dlp10:30:12/etc/yum.repos.d# yum clean all
root@dlp10:30:12/etc/yum.repos.d# yum makecache
 
 
root@bushu12:25:30~/cephjrpm# yum localinstall ceph-deploy-1.5.39-0.noarch.rpm -y
已加载插件:fastestmirror, langpacks
正在检查 ceph-deploy-1.5.39-0.noarch.rpm: ceph-deploy-1.5.39-0.noarch
ceph-deploy-1.5.39-0.noarch.rpm 将被安装
正在解决依赖关系--> 正在检查事务---> 软件包 ceph-deploy.noarch.0.1.5.39-0 将被 安装--> 正在处理依赖关系 python-distribute,它被软件包 ceph-deploy-1.5.39-0.noarch 须要
Loading mirror speeds from cached hostfile--> 正在检查事务---> 软件包 python-setuptools.noarch.0.0.9.8-7.el7 将被 安装--> 解决依赖关系完成
 
依赖关系解决
=============================================================================================================================
 Package                        架构                版本                     源                                         大小=============================================================================================================================
正在安装:
 ceph-deploy                    noarch              1.5.39-0                 /ceph-deploy-1.5.39-0.noarch              1.3 M
为依赖而安装:
 python-setuptools              noarch              0.9.8-7.el7              base                                      397 k
 
事务概要=============================================================================================================================
安装  1 软件包 (+1 依赖软件包)
 
总计:1.6 M
总下载量:397 k
安装大小:3.2 M
Downloading packages:
python-setuptools-0.9.8-7.el7.noarch.rpm                                                              | 397 kB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  正在安装    : python-setuptools-0.9.8-7.el7.noarch                                                                     1/2 
  正在安装    : ceph-deploy-1.5.39-0.noarch                                                                              2/2 
  验证中      : ceph-deploy-1.5.39-0.noarch                                                                              1/2 
  验证中      : python-setuptools-0.9.8-7.el7.noarch                                                                     2/2 
 
已安装:
  ceph-deploy.noarch 0:1.5.39-0                                                                                              
 
做为依赖被安装:
  python-setuptools.noarch 0:0.9.8-7.el7                                                                                     
 
完毕!
 
查看版本:
root@bushu12:55:58~/cephjrpm#ceph -v
ceph version 10.2.11 (e4b061b47f07f583c92a050d9e84b1813a35671e)
 
(5)在部署节点(cent用户下执行):配置新集群
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ceph-deploy new node1 node2 node3
vim ./ceph.conf
添加:osd pool default size = 2
 可选参数以下:
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public_network = 192.168.254.0/24
cluster_network = 172.16.254.0/24
osd_pool_default_size = 3
osd_pool_default_min_size = 1
osd_pool_default_pg_num = 8
osd_pool_default_pgp_num = 8
osd_crush_chooseleaf_type = 1
  
[mon]
mon_clock_drift_allowed = 0.5
  
[osd]
osd_mkfs_type = xfs
osd_mkfs_options_xfs = -f
filestore_max_sync_interval = 5
filestore_min_sync_interval = 0.1
filestore_fd_cache_size = 655350
filestore_omap_header_cache_size = 655350
filestore_fd_cache_random = true
osd op threads = 8
osd disk threads = 4
filestore op threads = 8
max_open_files = 655350
 
(6)在部署节点执行(cent用户下执行):全部节点安装ceph软件
全部节点有以下软件包:
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root@rab116:13:59~/cephjrpm#ls
ceph-10.2.11-0.el7.x86_64.rpm               ceph-resource-agents-10.2.11-0.el7.x86_64.rpm    librbd1-10.2.11-0.el7.x86_64.rpm
ceph-base-10.2.11-0.el7.x86_64.rpm          ceph-selinux-10.2.11-0.el7.x86_64.rpm            librbd1-devel-10.2.11-0.el7.x86_64.rpm
ceph-common-10.2.11-0.el7.x86_64.rpm        ceph-test-10.2.11-0.el7.x86_64.rpm               librgw2-10.2.11-0.el7.x86_64.rpm
ceph-devel-compat-10.2.11-0.el7.x86_64.rpm  libcephfs1-10.2.11-0.el7.x86_64.rpm              librgw2-devel-10.2.11-0.el7.x86_64.rpm
cephfs-java-10.2.11-0.el7.x86_64.rpm        libcephfs1-devel-10.2.11-0.el7.x86_64.rpm        python-ceph-compat-10.2.11-0.el7.x86_64.rpm
ceph-fuse-10.2.11-0.el7.x86_64.rpm          libcephfs_jni1-10.2.11-0.el7.x86_64.rpm          python-cephfs-10.2.11-0.el7.x86_64.rpm
ceph-libs-compat-10.2.11-0.el7.x86_64.rpm   libcephfs_jni1-devel-10.2.11-0.el7.x86_64.rpm    python-rados-10.2.11-0.el7.x86_64.rpm
ceph-mds-10.2.11-0.el7.x86_64.rpm           librados2-10.2.11-0.el7.x86_64.rpm               python-rbd-10.2.11-0.el7.x86_64.rpm
ceph-mon-10.2.11-0.el7.x86_64.rpm           librados2-devel-10.2.11-0.el7.x86_64.rpm         rbd-fuse-10.2.11-0.el7.x86_64.rpm
ceph-osd-10.2.11-0.el7.x86_64.rpm           libradosstriper1-10.2.11-0.el7.x86_64.rpm        rbd-mirror-10.2.11-0.el7.x86_64.rpm
ceph-radosgw-10.2.11-0.el7.x86_64.rpm       libradosstriper1-devel-10.2.11-0.el7.x86_64.rpm  rbd-nbd-10.2.11-0.el7.x86_64.rpm
全部节点安装上述软件包(包括客户端):
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yum localinstall ./* -y
 
(7)在部署节点执行,全部节点安装ceph软件
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ceph-deploy install dlp node1 node2 node3
 
(8)在部署节点初始化集群(cent用户下执行):
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ceph-deploy mon create-initial
 
(9)在osd节点prepare Object Storage Daemon :
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mkdir /data && chown ceph.ceph /data
 
 
(10)每一个节点将第二块硬盘作分区,并格式化为xfs文件系统挂载到/data:
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root@con116:45:22/#fdisk /dev/vdb
  
root@con116:45:22/#lsblk
NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
vda         252:0    0   40G  0 disk
├─vda1      252:1    0  512M  0 part /boot
└─vda2      252:2    0 39.5G  0 part
 ├─cl-root 253:0    0 35.5G  0 lvm  /
 └─cl-swap 253:1    0    4G  0 lvm  [SWAP]
vdb         252:16   0   10G  0 disk
└─vdb1      252:17   0   10G  0 part
  
root@rab116:54:35/#mkfs -t xfs /dev/vdb1
  
root@rab116:54:50/#mount /dev/vdb1 /data/
  
root@rab116:56:39/#lsblk
NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
vda         252:0    0   40G  0 disk
├─vda1      252:1    0  512M  0 part /boot
└─vda2      252:2    0 39.5G  0 part
 ├─cl-root 253:0    0 35.5G  0 lvm  /
 └─cl-swap 253:1    0    4G  0 lvm  [SWAP]
vdb         252:16   0   10G  0 disk
└─vdb1      252:17   0   10G  0 part /data
 
(11)在/data/下面建立osd挂载目录:
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mkdir /data/osd
chown -R ceph.ceph /data/
chmod 750 /data/osd/
ln -s /data/osd /var/lib/ceph
注意:准备前先将硬盘作文件系统 xfs,挂载到/var/lib/ceph/osd,而且注意属主和属主为ceph:
列出节点磁盘:ceph-deploy disk list node1
擦净节点磁盘:ceph-deploy disk zap node1:/dev/vdb1
 
(12)准备Object Storage Daemon:
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ceph-deploy osd prepare node1:/var/lib/ceph/osd node2:/var/lib/ceph/osd node3:/var/lib/ceph/osd
 
(13)激活Object Storage Daemon:
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ceph-deploy osd activate node1:/var/lib/ceph/osd node2:/var/lib/ceph/osd node3:/var/lib/ceph/osd
 
(14)在部署节点transfer config files
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ceph-deploy admin dlp node1 node2 node3
sudo chmod 644 /etc/ceph/ceph.client.admin.keyring
 
(15)在ceph集群中任意节点检测:
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ceph -s