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搭建Ceph分布式存儲

本文轉載自   查看原文   2019-07-27 15:20   844    ceph

環境：

系統

IP地址

主機名（登錄用戶）

承載角色

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）

添加一塊硬盤

mon-node

osd0-node

mds-node

Centos 7.4 64Bit 1611

10.199.100.172

node2（yzyu）

添加一塊硬盤

mon-node

osd1-node

 

  • 配置基礎環境

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

 

  • 配置ntp時間服務

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

 

  • 分別在dlp節點、node1、node2節點上安裝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 <<END >>/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/　　##必須保證有默認的官網源，結合epel源和網易的ceph源，才可以進行安裝；

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

[root@dlp ~]# su - yzyu [dhhy@dlp ~]$ mkdir ceph-cluster ##創建ceph主目錄 [dhhy@dlp ~]$ cd ceph-cluster [dhhy@dlp ceph-cluster]$ sudo yum -y install ceph-deploy ##安裝ceph管理工具 [dhhy@dlp ceph-cluster]$ sudo yum -y install ceph --nogpgcheck    ##安裝ceph主程序
[root@node1 ~]# yum -y install yum-utils [root@ node1 ~]# yum-config-manager --add-repo https://dl.fedoraproject.org/pub/epel/7/x86_64/
[root@node1 ~]# yum -y install epel-release --nogpgcheck [root@node1 ~]# cat <<END >>/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@node1 ~]# su - yzyu [dhhy@node1 ~]$ mkdir ceph-cluster [dhhy@node1~]$ cd ceph-cluster [dhhy@node1 ceph-cluster]$ sudo yum -y install ceph-deploy [dhhy@node1 ceph-cluster]$ sudo yum -y install ceph --nogpgcheck [dhhy@node1 ceph-cluster]$ sudo yum -y install deltarpm [root@node2 ~]# yum -y install yum-utils [root@ node1 ~]# yum-config-manager --add-repo https://dl.fedoraproject.org/pub/epel/7/x86_64/
[root@node2 ~]# yum -y install epel-release --nogpgcheck [root@node2 ~]# cat <<END >>/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@node2 ~]# su - yzyu [dhhy@node2 ~]$ mkdir ceph-cluster [dhhy@node2 ~]$ cd ceph-cluster [dhhy@node2 ceph-cluster]$ sudo yum -y install ceph-deploy [dhhy@node2 ceph-cluster]$ sudo yum -y install ceph --nogpgcheck [dhhy@node2 ceph-cluster]$ sudo yum -y install deltarpm

 

  • 在dlp節點管理node存儲節點，安裝注冊服務，節點信息

[yzyu@dlp ceph-cluster]$ pwd 　　##當前目錄必須為ceph的安裝目錄位置 /home/yzyu/ceph-cluster
[yzyu@dlp ceph-cluster]$ ssh-keygen -t rsa 　　##主節點需要遠程管理mon節點，需要創建密鑰對，並且將公鑰復制到mon節點
[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 <<END >>/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 　　##初始化節點

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

 

  • 配置Ceph的mon監控進程

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

注解：node節點的配置文件在/etc/ceph/目錄下，會自動同步dlp管理節點的配置文件；

 

  • 配置Ceph的osd存儲

配置node1節點的osd1存儲設備：

 

[yzyu@node1 ~]$ sudo fdisk /dev/sdc...sdc    ##格式化硬盤，轉換為GPT分區
[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    ##創建pv
[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    ##創建vg
[yzyu@node1 ~]$ lvcreate -L 130T -n lv1 vg1    ##划分空間
[yzyu@node1 ~]$ mkfs.xfs /dev/vg1/lv1    ##格式化
[yzyu@node1 ~]$ sudo partx -a /dev/vg1/lv1
[yzyu@node1 ~]$ sudo mkfs -t xfs /dev/vg1/lv1
[yzyu@node1 ~]$ sudo mkdir /var/local/osd1
[yzyu@node1 ~]$ sudo vi /etc/fstab
/dev/vg1/lv1 /var/local/osd1 xfs defaults 0 0
:wq
[yzyu@node1 ~]$ sudo mount -a
[yzyu@node1 ~]$ sudo chmod 777 /var/local/osd1
[yzyu@node1 ~]$ sudo chown ceph:ceph /var/local/osd1/
[yzyu@node1 ~]$ ls -ld /var/local/osd1/
[yzyu@node1 ~]$ df -hT
[yzyu@node1 ~]$ exit

 

配置node2節點的osd1存儲設備：

[yzyu@node2 ~]$ sudo fdisk /dev/sdc...sdc
[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
[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
[yzyu@node2 ~]$ lvcreate -L 130T -n lv2 vg2
[yzyu@node2 ~]$ mkfs.xfs /dev/vg2/lv2
[yzyu@node2 ~]$ sudo partx -a /dev/vg2/lv2
[yzyu@node2 ~]$ sudo mkfs -t xfs /dev/vg2/lv2
[yzyu@node2 ~]$ sudo mkdir /var/local/osd2
[yzyu@node2 ~]$ sudo vi /etc/fstab
/dev/vg2/lv2 /var/local/osd2 xfs defaults 0 0
:wq
[yzyu@node2 ~]$ sudo mount -a
[yzyu@node2 ~]$ sudo chmod 777 /var/local/osd2
[yzyu@node2 ~]$ sudo chown ceph:ceph /var/local/osd2/
[yzyu@node2 ~]$ ls -ld /var/local/osd2/
[yzyu@node2 ~]$ df -hT
[yzyu@node2 ~]$ exit

 

dlp管理節點注冊node節點：

[yzyu@dlp ceph-cluster]$ ceph-deploy osd prepare node1:/var/local/osd1 node2:/var/local/osd2 　　##初始創建osd節點並指定節點存儲文件位置

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

[yzyu@dlp ceph-cluster]$ ceph-deploy admin node1 node2 　　##復制key管理密鑰文件到node節點中

[yzyu@dlp ceph-cluster]$ sudo cp /home/dhhy/ceph-cluster/ceph.client.admin.keyring /etc/ceph/
[yzyu@dlp ceph-cluster]$ sudo cp /home/dhhy/ceph-cluster/ceph.conf /etc/ceph/
[yzyu@dlp ceph-cluster]$ ls /etc/ceph/
ceph.client.admin.keyring  ceph.conf  rbdmap
[yzyu@dlp ceph-cluster]$ ceph quorum_status --format json-pretty 　　##查看Ceph群集詳細信息

 

  • 驗證查看ceph集群狀態信息

[yzyu@dlp ceph-cluster]$ ceph health

HEALTH_OK

[yzyu@dlp ceph-cluster]$ ceph -s 　　##查看Ceph群集狀態

    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、總容量

                  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 　　##驗證node1節點的端口監聽狀態以及其配置文件以及磁盤使用情況  

[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 　　##驗證node2節點的端口監聽狀態以及其配置文件及其磁盤使用情況

[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元數據進程

[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客戶端

[yzyu@dlp ceph-cluster]$ ceph-deploy install ceph-client 　　##提示輸入密碼

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

[yzyu@dlp ceph-cluster]$ su -
[root@dlp ~]# chmod +r /etc/ceph/ceph.client.admin.keyring
[yzyu@dlp ceph-cluster]$ ceph osd pool create cephfs_data 128 　　##數據存儲池
pool 'cephfs_data' created
[yzyu@dlp ceph-cluster]$ ceph osd pool create cephfs_metadata 128 　　##元數據存儲池
pool 'cephfs_metadata' created
[yzyu@dlp ceph-cluster]$ ceph fs new cephfs cephfs_data cephfs_metadata 　　##創建文件系統
new fs with metadata pool 1 and data pool 2
 
[yzyu@dlp ceph-cluster]$ ceph fs ls 　　##查看文件系統
name: cephfs, metadata pool: cephfs_data, data pools: [cephfs_metadata ]
[yzyu@dlp ceph-cluster]$ ceph -s
    cluster 24fb6518-8539-4058-9c8e-d64e43b8f2e2
     health HEALTH_WARN
            clock skew detected on mon.node2
            too many PGs per OSD (320 > max 300)
            Monitor clock skew detected
     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
      fsmap e5: 1/1/1 up {0=node1=up:active}
     osdmap e17: 2 osds: 2 up, 2 in
            flags sortbitwise,require_jewel_osds
      pgmap v54: 320 pgs, 3 pools, 4678 bytes data, 24 objects
            10309 MB used, 30628 MB / 40938 MB avail
                 320 active+clean

 

  • 測試Ceph的客戶端存儲

[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

記錄了1+0 的讀入

記錄了1+0 的寫出

1073741824字節(1.1 GB)已復制，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

 

  • 錯誤整理

1. 如若在配置過程中出現問題，重新創建集群或重新安裝ceph，那么需要將ceph集群中的數據都清除掉，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節點為node節點和客戶端安裝ceph時，會出現yum安裝超時，大多由於網絡問題導致，可以多執行幾次安裝命令；

3.dlp節點指定ceph-deploy命令管理node節點配置時，當前所在目錄一定是/home/dhhy/ceph-cluster/，不然會提示找不到ceph.conf的配置文件；

4.osd節點的/var/local/osd*/存儲數據實體的目錄權限必須為777，並且屬主和屬組必須為ceph；

5. 在dlp管理節點安裝ceph時出現以下問題

 

解決方法：

1.重新yum安裝node1或者node2的epel-release軟件包；

2.如若還無法解決，將軟件包下載，使用以下命令進行本地安裝；

6.如若在dlp管理節點中對/home/yzyu/ceph-cluster/ceph.conf主配置文件發生變化，那么需要將其主配置文件同步給node節點，命令如下：

node節點收到配置文件后，需要重新啟動進程：

7.在dlp管理節點查看ceph集群狀態時，出現如下，原因是因為時間不一致所導致；

將dlp節點的ntpd時間服務重新啟動，node節點再次同步時間即可，如下所示：

8.在dlp管理節點進行管理node節點時，所處的位置一定是/home/yzyu/ceph-cluster/，不然會提示找不到ceph.conf主配置文件；

 


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