站長資訊網(wǎng)環(huán)境：
|
系統(tǒng) |
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 |
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配置基礎環(huán)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
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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 127.127.1.0nfudge 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
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分別在dlp節(jié)點、node1、node2節(jié)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(wǎng)源，結(jié)合epel源和網(wǎng)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(chuàng)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
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在dlp節(jié)點管理node存儲節(jié)點，安裝注冊服務，節(jié)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(jié)點需要遠程管理mon節(jié)點，需要創(chuàng)建密鑰對，并且將公鑰復制到mon節(jié)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(jié)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
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配置Ceph的mon監(jiān)控進程
[yzyu@dlp ceph-cluster]$ ceph-deploy mon create-initial ##初始化mon節(jié)點
注解：node節(jié)點的配置文件在/etc/ceph/目錄下，會自動同步dlp管理節(jié)點的配置文件；
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配置Ceph的osd存儲
配置node1節(jié)點的osd1存儲設備：
[yzyu@node1 ~]$ sudo fdisk /dev/sdc...sdc ##格式化硬盤，轉(zhuǎn)換為GPT分區(qū) [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(chuàng)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(chuàng)建vg [yzyu@node1 ~]$ lvcreate -L 130T -n lv1 vg1 ##劃分空間 [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(jié)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(jié)點注冊node節(jié)點：
[yzyu@dlp ceph-cluster]$ ceph-deploy osd prepare node1:/var/local/osd1 node2:/var/local/osd2 ##初始創(chuàng)建osd節(jié)點并指定節(jié)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(jié)點
[yzyu@dlp ceph-cluster]$ ceph-deploy admin node1 node2 ##復制key管理密鑰文件到node節(jié)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
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驗證查看ceph集群狀態(tài)信息
[yzyu@dlp ceph-cluster]$ ceph health
HEALTH_OK
[yzyu@dlp ceph-cluster]$ ceph -s ##查看Ceph群集狀態(tài)
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?cè)萘?/span>
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(jié)點的端口監(jiān)聽狀態(tài)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(jié)點的端口監(jiān)聽狀態(tài)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
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配置Ceph的mds元數(shù)據(jù)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
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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(shù)據(jù)存儲池 pool 'cephfs_data' created [yzyu@dlp ceph-cluster]$ ceph osd pool create cephfs_metadata 128 ##元數(shù)據(jù)存儲池 pool 'cephfs_metadata' created [yzyu@dlp ceph-cluster]$ ceph fs new cephfs cephfs_data cephfs_metadata ##創(chuàng)建文件系統(tǒng) new fs with metadata pool 1 and data pool 2 [yzyu@dlp ceph-cluster]$ ceph fs ls ##查看文件系統(tǒng) 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
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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 $3}’ >>/etc/ceph/admin.secret
[root@ceph-client ~]# cat /etc/ceph/admin.secret
AQCd/x9bsMqKFBAAZRNXpU5QstsPlfe1/FvPtQ==
[root@ceph-client ~]# mount -t ceph 10.199.100.171:6789:/ /mnt/ceph/ -o name=admin,secretfile=/etc/ceph/admin.secret
[root@ceph-client ~]# df -hT |grep ceph
10.199.100.171:6789:/ ceph 40G 11G 30G 26% /mnt/ceph
[root@ceph-client ~]# dd if=/dev/zero of=/mnt/ceph/1.file bs=1G count=1
記錄了1+0 的讀入
記錄了1+0 的寫出
1073741824字節(jié)(1.1 GB)已復制，14.2938 秒，75.1 MB/秒
[root@ceph-client ~]# ls /mnt/ceph/
1.file
[root@ceph-client ~]# df -hT |grep ceph
10.199.100.171:6789:/ ceph 40G 13G 28G 33% /mnt/ceph
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錯誤整理
1. 如若在配置過程中出現(xiàn)問題，重新創(chuàng)建集群或重新安裝ceph，那么需要將ceph集群中的數(shù)據(jù)都清除掉，命令如下；
[dhhy@dlp ceph-cluster]$ 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(jié)點為node節(jié)點和客戶端安裝ceph時，會出現(xiàn)yum安裝超時，大多由于網(wǎng)絡問題導致，可以多執(zhí)行幾次安裝命令；
3.dlp節(jié)點指定ceph-deploy命令管理node節(jié)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(jié)點的/var/local/osd*/存儲數(shù)據(jù)實體的目錄權(quán)限必須為777，并且屬主和屬組必須為ceph；
5. 在dlp管理節(jié)點安裝ceph時出現(xiàn)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(jié)點中對/home/yzyu/ceph-cluster/ceph.conf主配置文件發(fā)生變化，那么需要將其主配置文件同步給node節(jié)點，命令如下：
node節(jié)點收到配置文件后，需要重新啟動進程：
7.在dlp管理節(jié)點查看ceph集群狀態(tài)時，出現(xiàn)如下，原因是因為時間不一致所導致；
將dlp節(jié)點的ntpd時間服務重新啟動，node節(jié)點再次同步時間即可，如下所示：
8.在dlp管理節(jié)點進行管理node節(jié)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；
