搭建Ceph分布式存储

约定不等于承诺〃 2021-10-30 02:46 613阅读 0赞

环境：




























系统

IP地址

主机名（登录用户）

承载角色

Centos 7.4 64Bit 1611

10.199.100.170

dlp（yzyu）

ceph-client（root）

admin-node

ceph-client

Centos 7.4 64Bit 1611

10.199.100.171

node1（yzyu）

添加一块硬盘

mon-node

osd0-node

mds-node

Centos 7.4 64Bit 1611

10.199.100.172

node2（yzyu）

添加一块硬盘

mon-node

osd1-node

  • 配置基础环境

    [root@dlp ~]# useradd yzyu
    [root@dlp ~]# echo “dhhy” |passwd —stdin dhhy
    [root@dlp ~]# cat <>/etc/hosts
    10.199.100.170 dlp
    10.199.100.171 node1
    10.199.100.172 node2
    END
    [root@dlp ~]# echo “yzyu ALL = (root) NOPASSWD:ALL” >> /etc/sudoers.d/yzyu
    [root@dlp ~]# chmod 0440 /etc/sudoers.d/yzyu

    [root@node1~]# useradd yzyu
    [root@node1 ~]# echo “yzyu” |passwd —stdin yzyu
    [root@node1 ~]# cat <>/etc/hosts
    10.199.100.170 dlp
    10.199.100.171 node1
    10.199.100.172 node2
    END
    [root@node1 ~]# echo “yzyu ALL = (root) NOPASSWD:ALL” >> /etc/sudoers.d/yzyu
    [root@node1 ~]# chmod 0440 /etc/sudoers.d/yzyu

  1. [root@node2 ~]# useradd yzyu
  2. [root@node2 ~]# echo "yzyu" |passwd --stdin yzyu
  3. [root@node2 ~]# cat <<END >>/etc/hosts
  4. 10.199.100.170 dlp
  5. 10.199.100.171 node1
  6. 10.199.100.172 node2
  7. END
  8. [root@node2 ~]# echo "yzyu ALL = (root) NOPASSWD:ALL" >> /etc/sudoers.d/yzyu
  9. [root@node2 ~]# chmod 0440 /etc/sudoers.d/yzyu

  • 配置ntp时间服务

    [root@dlp ~]# yum -y install ntp ntpdate
    [root@dlp ~]# sed -i ‘/^server/s/^/#/g’ /etc/ntp.conf
    [root@dlp ~]# sed -i ‘25aserver 127.127.1.0\nfudge 127.127.1.0 stratum 8’ /etc/ntp.conf
    [root@dlp ~]# systemctl start ntpd
    [root@dlp ~]# systemctl enable ntpd
    [root@dlp ~]# netstat -lntup

    [root@node1 ~]# yum -y install ntpdate
    [root@node1 ~]# /usr/sbin/ntpdate 10.199.100.170
    [root@node1 ~]# echo “/usr/sbin/ntpdate 10.199.100.170” >>/etc/rc.local
    [root@node1 ~]# chmod +x /etc/rc.local

  1. [root@node2 ~]# yum -y install ntpdate
  2. [root@node2 ~]# /usr/sbin/ntpdate 10.199.100.170
  3. [root@node2 ~]# echo "/usr/sbin/ntpdate 10.199.100.170" >>/etc/rc.local
  4. [root@node2 ~]# chmod +x /etc/rc.local

  • 分别在dlp节点、node1、node2节点上安装Ceph

    [root@dlp ~]# yum -y install yum-utils
    [root@dlp ~]# yum-config-manager —add-repo https://dl.fedoraproject.org/pub/epel/7/x86_64/
    [root@dlp ~]# yum -y install epel-release —nogpgcheck
    [root@dlp ~]# cat <>/etc/yum.repos.d/ceph.repo
    [Ceph]
    name=Ceph packages for \$basearch
    baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/\$basearch
    enabled=1
    gpgcheck=0
    type=rpm-md
    gpgkey=https://mirrors.163.com/ceph/keys/release.asc
    priority=1

    [Ceph-noarch]
    name=Ceph noarch packages
    baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/noarch
    enabled=1
    gpgcheck=0
    type=rpm-md
    gpgkey=https://mirrors.163.com/ceph/keys/release.asc
    priority=1

    [ceph-source]
    name=Ceph source packages
    baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/SRPMS
    enabled=1
    gpgcheck=0
    type=rpm-md
    gpgkey=https://mirrors.163.com/ceph/keys/release.asc
    priority=1
    END

[root@dlp ~]# ls /etc/yum.repos.d/　　##必须保证有默认的官网源，结合epel源和网易的ceph源，才可以进行安装；

bak CentOS-fasttrack.repo ceph.repo

CentOS-Base.repo CentOS-Media.repo dl.fedoraproject.org_pub_epel_7_x86_64_.repo

CentOS-CR.repo CentOS-Sources.repo epel.repo

CentOS-Debuginfo.repo CentOS-Vault.repo epel-testing.repo

  1. [root@dlp ~]# su - yzyu
  2. [dhhy@dlp ~]$ mkdir ceph-cluster    ##创建ceph主目录
  3. [dhhy@dlp ~]$ cd ceph-cluster
  4. [dhhy@dlp ceph-cluster]$ sudo yum -y install ceph-deploy    ##安装ceph管理工具
  5. [dhhy@dlp ceph-cluster]$ sudo yum -y install ceph --nogpgcheck    ##安装ceph主程序
  7. [root@node1 ~]# yum -y install yum-utils
  8. [root@ node1 ~]# yum-config-manager --add-repo https://dl.fedoraproject.org/pub/epel/7/x86_64/
  9. [root@node1 ~]# yum -y install epel-release --nogpgcheck
  10. [root@node1 ~]# cat <<END >>/etc/yum.repos.d/ceph.repo
  11. [Ceph]
  12. name=Ceph packages for \$basearch
  13. baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/\$basearch
  14. enabled=1
  15. gpgcheck=0
  16. type=rpm-md
  17. gpgkey=https://mirrors.163.com/ceph/keys/release.asc
  18. priority=1
  20. [Ceph-noarch]
  21. name=Ceph noarch packages
  22. baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/noarch
  23. enabled=1
  24. gpgcheck=0
  25. type=rpm-md
  26. gpgkey=https://mirrors.163.com/ceph/keys/release.asc
  27. priority=1
  29. [ceph-source]
  30. name=Ceph source packages
  31. baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/SRPMS
  32. enabled=1
  33. gpgcheck=0
  34. type=rpm-md
  35. gpgkey=https://mirrors.163.com/ceph/keys/release.asc
  36. priority=1
  37. END
  39. [root@node1 ~]# su - yzyu
  40. [dhhy@node1 ~]$ mkdir ceph-cluster
  41. [dhhy@node1~]$ cd ceph-cluster
  42. [dhhy@node1 ceph-cluster]$ sudo yum -y install ceph-deploy
  43. [dhhy@node1 ceph-cluster]$ sudo yum -y install ceph --nogpgcheck
  44. [dhhy@node1 ceph-cluster]$ sudo yum -y install deltarpm
  47. [root@node2 ~]# yum -y install yum-utils
  48. [root@ node1 ~]# yum-config-manager --add-repo https://dl.fedoraproject.org/pub/epel/7/x86_64/
  49. [root@node2 ~]# yum -y install epel-release --nogpgcheck
  50. [root@node2 ~]# cat <<END >>/etc/yum.repos.d/ceph.repo
  51. [Ceph]
  52. name=Ceph packages for \$basearch
  53. baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/\$basearch
  54. enabled=1
  55. gpgcheck=0
  56. type=rpm-md
  57. gpgkey=https://mirrors.163.com/ceph/keys/release.asc
  58. priority=1
  60. [Ceph-noarch]
  61. name=Ceph noarch packages
  62. baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/noarch
  63. enabled=1
  64. gpgcheck=0
  65. type=rpm-md
  66. gpgkey=https://mirrors.163.com/ceph/keys/release.asc
  67. priority=1
  69. [ceph-source]
  70. name=Ceph source packages
  71. baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/SRPMS
  72. enabled=1
  73. gpgcheck=0
  74. type=rpm-md
  75. gpgkey=https://mirrors.163.com/ceph/keys/release.asc
  76. priority=1
  77. END
  79. [root@node2 ~]# su - yzyu
  80. [dhhy@node2 ~]$ mkdir ceph-cluster
  81. [dhhy@node2 ~]$ cd ceph-cluster
  82. [dhhy@node2 ceph-cluster]$ sudo yum -y install ceph-deploy
  83. [dhhy@node2 ceph-cluster]$ sudo yum -y install ceph --nogpgcheck
  84. [dhhy@node2 ceph-cluster]$ sudo yum -y install deltarpm

  • 在dlp节点管理node存储节点，安装注册服务，节点信息

    [yzyu@dlp ceph-cluster]$ pwd 　　##当前目录必须为ceph的安装目录位置
    /home/yzyu/ceph-cluster
    [yzyu@dlp ceph-cluster]$ ssh-keygen -t rsa 　　##主节点需要远程管理mon节点，需要创建密钥对，并且将公钥复制到mon节点
    [yzyu@dlp ceph-cluster]$ ssh-copy-id dhhy@dlp
    [yzyu@dlp ceph-cluster]$ ssh-copy-id dhhy@node1
    [yzyu@dlp ceph-cluster]$ ssh-copy-id dhhy@node2
    [yzyu@dlp ceph-cluster]$ ssh-copy-id root@ceph-client
    [yzyu@dlp ceph-cluster]$ cat <>/home/dhhy/.ssh/config
    Host dlp
    Hostname dlp
    User yzyu
    Host node1
    Hostname node1
    User yzyu
    Host node2
    Hostname node2
    User yzyu
    END
    [yzyu@dlp ceph-cluster]$ chmod 644 /home/yzyu/.ssh/config
    [yzyu@dlp ceph-cluster]$ ceph-deploy new node1 node2 　　##初始化节点

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  1. [yzyu@dlp ceph-cluster]$ cat <<END >>/home/yzyu/ceph-cluster/ceph.conf
  2. osd pool default size = 2
  3. END
  4. [yzyu@dlp ceph-cluster]$ ceph-deploy install node1 node2 ##安装ceph

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  • 配置Ceph的mon监控进程

    [yzyu@dlp ceph-cluster]$ ceph-deploy mon create-initial 　　##初始化mon节点

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注解：node节点的配置文件在/etc/ceph/目录下，会自动同步dlp管理节点的配置文件；

  • 配置Ceph的osd存储

配置node1节点的osd1存储设备：

  1. [yzyu@node1 ~]$ sudo fdisk /dev/sdc...sdc    ##格式化硬盘，转换为GPT分区
  2. [yzyu@node1 ~]$ pvcreate /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1 /dev/sdm1 /dev/sdn1 /dev/sdo1 /dev/sdp1 /dev/sdq1 /dev/sdr1 /dev/sds1 /dev/sdt1 /dev/sdu1 /dev/sdv1 /dev/sdw1 /dev/sdx1 /dev/sdy1 /dev/sdz1    ##创建pv
  3. [yzyu@node1 ~]$ vgcreate vg1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1 /dev/sdm1 /dev/sdn1 /dev/sdo1 /dev/sdp1 /dev/sdq1 /dev/sdr1 /dev/sds1 /dev/sdt1 /dev/sdu1 /dev/sdv1 /dev/sdw1 /dev/sdx1 /dev/sdy1 /dev/sdz1    ##创建vg
  4. [yzyu@node1 ~]$ lvcreate -L 130T -n lv1 vg1    ##划分空间
  5. [yzyu@node1 ~]$ mkfs.xfs /dev/vg1/lv1    ##格式化
  7. [yzyu@node1 ~]$ sudo partx -a /dev/vg1/lv1
  8. [yzyu@node1 ~]$ sudo mkfs -t xfs /dev/vg1/lv1
  9. [yzyu@node1 ~]$ sudo mkdir /var/local/osd1
  10. [yzyu@node1 ~]$ sudo vi /etc/fstab
  11. /dev/vg1/lv1 /var/local/osd1 xfs defaults 0 0
  12. :wq
  13. [yzyu@node1 ~]$ sudo mount -a
  14. [yzyu@node1 ~]$ sudo chmod 777 /var/local/osd1
  15. [yzyu@node1 ~]$ sudo chown ceph:ceph /var/local/osd1/
  16. [yzyu@node1 ~]$ ls -ld /var/local/osd1/
  17. [yzyu@node1 ~]$ df -hT
  18. [yzyu@node1 ~]$ exit

配置node2节点的osd1存储设备：

  1. [yzyu@node2 ~]$ sudo fdisk /dev/sdc...sdc
  2. [yzyu@node2 ~]$ pvcreate /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1 /dev/sdm1 /dev/sdn1 /dev/sdo1 /dev/sdp1 /dev/sdq1 /dev/sdr1 /dev/sds1 /dev/sdt1 /dev/sdu1 /dev/sdv1 /dev/sdw1 /dev/sdx1 /dev/sdy1 /dev/sdz1
  3. [yzyu@node2 ~]$ vgcreate vg2 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1 /dev/sdm1 /dev/sdn1 /dev/sdo1 /dev/sdp1 /dev/sdq1 /dev/sdr1 /dev/sds1 /dev/sdt1 /dev/sdu1 /dev/sdv1 /dev/sdw1 /dev/sdx1 /dev/sdy1 /dev/sdz1
  4. [yzyu@node2 ~]$ lvcreate -L 130T -n lv2 vg2
  5. [yzyu@node2 ~]$ mkfs.xfs /dev/vg2/lv2
  7. [yzyu@node2 ~]$ sudo partx -a /dev/vg2/lv2
  8. [yzyu@node2 ~]$ sudo mkfs -t xfs /dev/vg2/lv2
  9. [yzyu@node2 ~]$ sudo mkdir /var/local/osd2
  10. [yzyu@node2 ~]$ sudo vi /etc/fstab
  11. /dev/vg2/lv2 /var/local/osd2 xfs defaults 0 0
  12. :wq
  13. [yzyu@node2 ~]$ sudo mount -a
  14. [yzyu@node2 ~]$ sudo chmod 777 /var/local/osd2
  15. [yzyu@node2 ~]$ sudo chown ceph:ceph /var/local/osd2/
  16. [yzyu@node2 ~]$ ls -ld /var/local/osd2/
  17. [yzyu@node2 ~]$ df -hT
  18. [yzyu@node2 ~]$ exit

dlp管理节点注册node节点：

  1. [yzyu@dlp ceph-cluster]$ ceph-deploy osd prepare node1:/var/local/osd1 node2:/var/local/osd2 　　##初始创建osd节点并指定节点存储文件位置

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  1. [yzyu@dlp ceph-cluster]$ chmod +r /home/yzyu/ceph-cluster/ceph.client.admin.keyring
  2. [yzyu@dlp ceph-cluster]$ ceph-deploy osd activate node1:/var/local/osd1 node2:/var/local/osd2 　　##激活ods节点

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  1. [yzyu@dlp ceph-cluster]$ ceph-deploy admin node1 node2 　　##复制key管理密钥文件到node节点中

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  1. [yzyu@dlp ceph-cluster]$ sudo cp /home/dhhy/ceph-cluster/ceph.client.admin.keyring /etc/ceph/
  2. [yzyu@dlp ceph-cluster]$ sudo cp /home/dhhy/ceph-cluster/ceph.conf /etc/ceph/
  3. [yzyu@dlp ceph-cluster]$ ls /etc/ceph/
  4. ceph.client.admin.keyring  ceph.conf  rbdmap
  5. [yzyu@dlp ceph-cluster]$ ceph quorum_status --format json-pretty 　　##查看Ceph群集详细信息

  • 验证查看ceph集群状态信息

[yzyu@dlp ceph-cluster]$ ceph health

HEALTH_OK

[yzyu@dlp ceph-cluster]$ ceph -s 　　##查看Ceph群集状态

cluster 24fb6518-8539-4058-9c8e-d64e43b8f2e2

health HEALTH_OK

monmap e1: 2 mons at {node1=10.199.100.171:6789/0,node2=10.199.100.172:6789/0}

election epoch 6, quorum 0,1 node1,node2

osdmap e10: 2 osds: 2 up, 2 in

flags sortbitwise,require_jewel_osds

pgmap v20: 64 pgs, 1 pools, 0 bytes data, 0 objects

10305 MB used, 30632 MB / 40938 MB avail 　　##已使用、剩余、总容量

64 active+clean

[dhhy@dlp ceph-cluster]$ ceph osd tree

ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY

-1 0.03897 root default

-2 0.01949 host node1

0 0.01949 osd.0 up 1.00000 1.00000

-3 0.01949 host node2

1 0.01949 osd.1 up 1.00000 1.00000

[yzyu@dlp ceph-cluster]$ ssh yzyu@node1 　　##验证node1节点的端口监听状态以及其配置文件以及磁盘使用情况

[yzyu@node1 ~]$ df -hT |grep lv1

/dev/vg1/lv1 xfs 20G 5.1G 15G 26% /var/local/osd1

[yzyu@node1 ~]$ du -sh /var/local/osd1/

5.1G /var/local/osd1/

[yzyu@node1 ~]$ ls /var/local/osd1/

activate.monmap active ceph_fsid current fsid journal keyring magic ready store_version superblock systemd type whoami

[yzyu@node1 ~]$ ls /etc/ceph/

ceph.client.admin.keyring ceph.conf rbdmap tmppVBe_2

[yzyu@node1 ~]$ cat /etc/ceph/ceph.conf

[global]

fsid = 0fcdfa46-c8b7-43fc-8105-1733bce3bfeb

mon_initial_members = node1, node2

mon_host = 10.199.100.171,10.199.100.172

auth_cluster_required = cephx

auth_service_required = cephx

auth_client_required = cephx

osd pool default size = 2

[yzyu@dlp ceph-cluster]$ ssh yzyu@node2 　　##验证node2节点的端口监听状态以及其配置文件及其磁盘使用情况

[yzyu@node2 ~]$ df -hT |grep lv2

/dev/vg2/lv2 xfs 20G 5.1G 15G 26% /var/local/osd2

[yzyu@node2 ~]$ du -sh /var/local/osd2/

5.1G /var/local/osd2/

[yzyu@node2 ~]$ ls /var/local/osd2/

activate.monmap active ceph_fsid current fsid journal keyring magic ready store_version superblock systemd type whoami

[yzyu@node2 ~]$ ls /etc/ceph/

ceph.client.admin.keyring ceph.conf rbdmap tmpmB_BTa

[yzyu@node2 ~]$ cat /etc/ceph/ceph.conf

[global]

fsid = 0fcdfa46-c8b7-43fc-8105-1733bce3bfeb

mon_initial_members = node1, node2

mon_host = 10.199.100.171,10.199.100.172

auth_cluster_required = cephx

auth_service_required = cephx

auth_client_required = cephx

osd pool default size = 2

  • 配置Ceph的mds元数据进程

    [yzyu@dlp ceph-cluster]$ ceph-deploy mds create node1
    [yzyu@dlp ceph-cluster]$ ssh dhhy@node1
    [yzyu@node1 ~]$ netstat -utpln |grep 68
    (No info could be read for “-p”: geteuid()=1000 but you should be root.)
    tcp 0 0 0.0.0.0:6800 0.0.0.0: LISTEN -
    tcp 0 0 0.0.0.0:6801 0.0.0.0:     LISTEN -
    tcp 0 0 0.0.0.0:6802 0.0.0.0: LISTEN -
    tcp 0 0 0.0.0.0:6803 0.0.0.0:     LISTEN -
    tcp 0 0 0.0.0.0:6804 0.0.0.0: LISTEN -
    tcp 0 0 192.168.100.102:6789 0.0.0.0:     LISTEN -
    [yzyu@node1 ~]$ exit

  • 配置Ceph的client客户端

    [yzyu@dlp ceph-cluster]$ ceph-deploy install ceph-client 　　##提示输入密码

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  1. [dhhy@dlp ceph-cluster]$ ceph-deploy admin ceph-client

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  1. [yzyu@dlp ceph-cluster]$ su -
  2. [root@dlp ~]# chmod +r /etc/ceph/ceph.client.admin.keyring
  4. [yzyu@dlp ceph-cluster]$ ceph osd pool create cephfs_data 128 　　##数据存储池
  5. pool 'cephfs_data' created
  6. [yzyu@dlp ceph-cluster]$ ceph osd pool create cephfs_metadata 128 　　##元数据存储池
  7. pool 'cephfs_metadata' created
  8. [yzyu@dlp ceph-cluster]$ ceph fs new cephfs cephfs_data cephfs_metadata 　　##创建文件系统
  9. new fs with metadata pool 1 and data pool 2
  11. [yzyu@dlp ceph-cluster]$ ceph fs ls 　　##查看文件系统
  12. name: cephfs, metadata pool: cephfs_data, data pools: [cephfs_metadata ]
  13. [yzyu@dlp ceph-cluster]$ ceph -s
  14.     cluster 24fb6518-8539-4058-9c8e-d64e43b8f2e2
  15.      health HEALTH_WARN
  16.             clock skew detected on mon.node2
  17.             too many PGs per OSD (320 > max 300)
  18.             Monitor clock skew detected
  19.      monmap e1: 2 mons at {node1=10.199.100.171:6789/0,node2=10.199.100.172:6789/0}
  20.             election epoch 6, quorum 0,1 node1,node2
  21.       fsmap e5: 1/1/1 up {
  22.     0=node1=up:active}
  23.      osdmap e17: 2 osds: 2 up, 2 in
  24.             flags sortbitwise,require_jewel_osds
  25.       pgmap v54: 320 pgs, 3 pools, 4678 bytes data, 24 objects
  26.             10309 MB used, 30628 MB / 40938 MB avail
  27.                  320 active+clean

  • 测试Ceph的客户端存储

[root@ceph-client ~]# mkdir /mnt/ceph

[root@ceph-client ~]# grep key /etc/ceph/ceph.client.admin.keyring |awk ‘{print $3}‘ >>/etc/ceph/admin.secret

[root@ceph-client ~]# cat /etc/ceph/admin.secret

AQCd/x9bsMqKFBAAZRNXpU5QstsPlfe1/FvPtQ==

[root@ceph-client ~]# mount -t ceph 10.199.100.171:6789:/ /mnt/ceph/ -o name=admin,secretfile=/etc/ceph/admin.secret

[root@ceph-client ~]# df -hT |grep ceph

10.199.100.171:6789:/ ceph 40G 11G 30G 26% /mnt/ceph

[root@ceph-client ~]# dd if=/dev/zero of=/mnt/ceph/1.file bs=1G count=1

记录了1+0 的读入

记录了1+0 的写出

1073741824字节(1.1 GB)已复制，14.2938 秒，75.1 MB/秒

[root@ceph-client ~]# ls /mnt/ceph/

1.file
[root@ceph-client ~]# df -hT |grep ceph

10.199.100.171:6789:/ ceph 40G 13G 28G 33% /mnt/ceph

  • 错误整理

  1. 如若在配置过程中出现问题，重新创建集群或重新安装ceph，那么需要将ceph集群中的数据都清除掉，命令如下；

[dhhy@dlp ceph-cluster]$ ceph-deploy purge node1 node2

[dhhy@dlp ceph-cluster]$ ceph-deploy purgedata node1 node2

[dhhy@dlp ceph-cluster]$ ceph-deploy forgetkeys && rm ceph.*

2.dlp节点为node节点和客户端安装ceph时，会出现yum安装超时，大多由于网络问题导致，可以多执行几次安装命令；

3.dlp节点指定ceph-deploy命令管理node节点配置时，当前所在目录一定是/home/dhhy/ceph-cluster/，不然会提示找不到ceph.conf的配置文件；

4.osd节点的/var/local/osd*/存储数据实体的目录权限必须为777，并且属主和属组必须为ceph；

  1. 在dlp管理节点安装ceph时出现以下问题

1574611-20190727165937167-1452666307.png

解决方法：

1.重新yum安装node1或者node2的epel-release软件包；

2.如若还无法解决，将软件包下载，使用以下命令进行本地安装；

1574611-20190727165958472-762763043.png

6.如若在dlp管理节点中对/home/yzyu/ceph-cluster/ceph.conf主配置文件发生变化，那么需要将其主配置文件同步给node节点，命令如下：

1574611-20190727170012468-1844748843.png

node节点收到配置文件后，需要重新启动进程：

1574611-20190727170023718-980815327.png

1574611-20190727170028295-437254496.png

7.在dlp管理节点查看ceph集群状态时，出现如下，原因是因为时间不一致所导致；

1574611-20190727170038660-914210420.png

将dlp节点的ntpd时间服务重新启动，node节点再次同步时间即可，如下所示：

1574611-20190727170054682-1821398115.png

8.在dlp管理节点进行管理node节点时，所处的位置一定是/home/yzyu/ceph-cluster/，不然会提示找不到ceph.conf主配置文件；

1574611-20190727170105606-1944896105.png

转载于:https://www.cnblogs.com/omgasw/p/11255224.html

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