之前已详细介绍了Ceph分布式存储基础知识，下面简单记录下Centos7使用Ceph-deploy快速部署Ceph环境：
1）基本环境
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192.168.10.220 ceph-admin（ceph-deploy） mds1、mon1（也可以将monit节点另放一台机器）192.168.10.239 ceph-node1 osd1 192.168.10.212 ceph-node2 osd2 192.168.10.213 ceph-node3 osd3 -------------------------------------------------每个节点修改主机名# hostnamectl set-hostname ceph-admin# hostnamectl set-hostname ceph-node1# hostnamectl set-hostname ceph-node2# hostnamectl set-hostname ceph-node3-------------------------------------------------每个节点绑定主机名映射# cat /etc/hosts192.168.10.220 ceph-admin192.168.10.239 ceph-node1 192.168.10.212 ceph-node2192.168.10.213 ceph-node3-------------------------------------------------每个节点确认连通性# ping -c 3 ceph-admin# ping -c 3 ceph-node1# ping -c 3 ceph-node2# ping -c 3 ceph-node3-------------------------------------------------每个节点关闭防火墙和selinux# systemctl stop firewalld# systemctl disable firewalld# sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config# setenforce 0-------------------------------------------------每个节点安装和配置NTP（官方推荐的是集群的所有节点全部安装并配置 NTP，需要保证各节点的系统时间一致。没有自己部署ntp服务器，就在线同步NTP）# yum install ntp ntpdate ntp-doc -y# systemctl restart ntpd# systemctl status ntpd-------------------------------------------------每个节点准备yum源删除默认的源，国外的比较慢# yum clean all# mkdir /mnt/bak# mv /etc/yum.repos.d/* /mnt/bak/下载阿里云的base源和epel源# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo# wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo添加ceph源# vim /etc/yum.repos.d/ceph.repo[ceph]name=cephbaseurl=http://mirrors.aliyun.com/ceph/rpm-jewel/el7/x86_64/gpgcheck=0priority =1[ceph-noarch]name=cephnoarchbaseurl=http://mirrors.aliyun.com/ceph/rpm-jewel/el7/noarch/gpgcheck=0priority =1[ceph-source]name=Ceph source packagesbaseurl=http://mirrors.aliyun.com/ceph/rpm-jewel/el7/SRPMSgpgcheck=0priority=1------------------------------------------------------------每个节点创建cephuser用户，设置sudo权限# useradd -d /home/cephuser -m cephuser# echo "cephuser"|passwd --stdin cephuser# echo "cephuser ALL = (root) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/cephuser# chmod 0440 /etc/sudoers.d/cephuser# sed -i s'/Defaults requiretty/#Defaults requiretty'/g /etc/sudoers测试cephuser的sudo权限# su - cephuser$ sudo su -#------------------------------------------------------------配置相互间的ssh信任关系现在ceph-admin节点上产生公私钥文件，然后将ceph-admin节点的.ssh目录拷贝给其他节点[root@ceph-admin ~]# su - cephuser[cephuser@ceph-admin ~]$ ssh-keygen -t rsa #一路回车[cephuser@ceph-admin ~]$ cd .ssh/[cephuser@ceph-admin .ssh]$ lsid_rsa id_rsa.pub[cephuser@ceph-admin .ssh]$ cp id_rsa.pub authorized_keys[cephuser@ceph-admin .ssh]$ scp -r /home/cephuser/.ssh ceph-node1:/home/cephuser/[cephuser@ceph-admin .ssh]$ scp -r /home/cephuser/.ssh ceph-node2:/home/cephuser/[cephuser@ceph-admin .ssh]$ scp -r /home/cephuser/.ssh ceph-node3:/home/cephuser/然后在各节点直接验证cephuser用户下的ssh相互信任关系$ ssh -p22 cephuser@ceph-admin$ ssh -p22 cephuser@ceph-node1$ ssh -p22 cephuser@ceph-node2$ ssh -p22 cephuser@ceph-node3 |
2）准备磁盘（ceph-node1、ceph-node2、ceph-node3三个节点）
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测试时使用的磁盘不要太小，否则后面添加磁盘时会报错，建议磁盘大小为20G及以上。三个节点均是在WebvirtMgr上创建的虚拟机，参考：https://www.cnblogs.com/kevingrace/p/8387999.html 文档中创建并挂载虚拟机磁盘。如下分别在三个节点挂载了一块20G的裸盘检查磁盘$ sudo fdisk -l /dev/vdbDisk /dev/vdb: 21.5 GB, 21474836480 bytes, 41943040 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytes格式化磁盘$ sudo parted -s /dev/vdb mklabel gpt mkpart primary xfs 0% 100%$ sudo mkfs.xfs /dev/vdb -f查看磁盘格式（xfs格式）$ sudo blkid -o value -s TYPE /dev/vdb |
3）部署阶段（ceph-admin节点上使用ceph-deploy快速部署）
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[root@ceph-admin ~]# su - cephuser 安装ceph-deploy[cephuser@ceph-admin ~]$ sudo yum update -y && sudo yum install ceph-deploy -y 创建cluster目录[cephuser@ceph-admin ~]$ mkdir cluster[cephuser@ceph-admin ~]$ cd cluster/ 创建集群（后面填写monit节点的主机名，这里monit节点和管理节点是同一台机器，即ceph-admin）[cephuser@ceph-admin cluster]$ ceph-deploy new ceph-admin.........[ceph-admin][DEBUG ] IP addresses found: [u'192.168.10.220'][ceph_deploy.new][DEBUG ] Resolving host ceph-admin[ceph_deploy.new][DEBUG ] Monitor ceph-admin at 192.168.10.220[ceph_deploy.new][DEBUG ] Monitor initial members are ['ceph-admin'][ceph_deploy.new][DEBUG ] Monitor addrs are ['192.168.10.220'][ceph_deploy.new][DEBUG ] Creating a random mon key...[ceph_deploy.new][DEBUG ] Writing monitor keyring to ceph.mon.keyring...[ceph_deploy.new][DEBUG ] Writing initial config to ceph.conf... 修改ceph.conf文件（注意：mon_host必须和public network 网络是同网段内！）[cephuser@ceph-admin cluster]$ vim ceph.conf #添加下面两行配置内容......public network = 192.168.10.220/24osd pool default size = 3 安装ceph（过程有点长，需要等待一段时间....）[cephuser@ceph-admin cluster]$ ceph-deploy install ceph-admin ceph-node1 ceph-node2 ceph-node3 初始化monit监控节点，并收集所有密钥[cephuser@ceph-admin cluster]$ ceph-deploy mon create-initial[cephuser@ceph-admin cluster]$ ceph-deploy gatherkeys ceph-admin 添加OSD到集群检查OSD节点上所有可用的磁盘[cephuser@ceph-admin cluster]$ ceph-deploy disk list ceph-node1 ceph-node2 ceph-node3 使用zap选项删除所有osd节点上的分区[cephuser@ceph-admin cluster]$ ceph-deploy disk zap ceph-node1:/dev/vdb ceph-node2:/dev/vdb ceph-node3:/dev/vdb 准备OSD（使用prepare命令）[cephuser@ceph-admin cluster]$ ceph-deploy osd prepare ceph-node1:/dev/vdb ceph-node2:/dev/vdb ceph-node3:/dev/vdb 激活OSD（注意由于ceph对磁盘进行了分区，/dev/vdb磁盘分区为/dev/vdb1）[cephuser@ceph-admin cluster]$ ceph-deploy osd activate ceph-node1:/dev/vdb1 ceph-node2:/dev/vdb1 ceph-node3:/dev/vdb1---------------------------------------------------------------------------------------------可能出现下面的报错：[ceph-node1][WARNIN] ceph_disk.main.Error: Error: /dev/vdb1 is not a directory or block device[ceph-node1][ERROR ] RuntimeError: command returned non-zero exit status: 1[ceph_deploy][ERROR ] RuntimeError: Failed to execute command: /usr/sbin/ceph-disk -v activate --mark-init systemd --mount /dev/vdb1 但是这个报错没有影响ceph的部署，在三个osd节点上通过命令已显示磁盘已成功mount：[cephuser@ceph-node1 ~]$ lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTsr0 11:0 1 4.2G 0 romvda 252:0 0 70G 0 disk├─vda1 252:1 0 1G 0 part /boot└─vda2 252:2 0 69G 0 part ├─centos-root 253:0 0 43.8G 0 lvm / ├─centos-swap 253:1 0 3.9G 0 lvm [SWAP] └─centos-home 253:2 0 21.4G 0 lvm /homevdb 252:16 0 20G 0 disk├─vdb1 252:17 0 15G 0 part /var/lib/ceph/osd/ceph-0 #挂载成功└─vdb2 252:18 0 5G 0 part [cephuser@ceph-node2 ~]$ lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTsr0 11:0 1 4.2G 0 romvda 252:0 0 70G 0 disk├─vda1 252:1 0 1G 0 part /boot└─vda2 252:2 0 69G 0 part ├─centos-root 253:0 0 43.8G 0 lvm / ├─centos-swap 253:1 0 3.9G 0 lvm [SWAP] └─centos-home 253:2 0 21.4G 0 lvm /homevdb 252:16 0 20G 0 disk├─vdb1 252:17 0 15G 0 part /var/lib/ceph/osd/ceph-1 #挂载成功└─vdb2 252:18 0 5G 0 part [cephuser@ceph-node3 ~]$ lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTsr0 11:0 1 4.2G 0 romvda 252:0 0 70G 0 disk├─vda1 252:1 0 1G 0 part /boot└─vda2 252:2 0 69G 0 part ├─centos-root 253:0 0 43.8G 0 lvm / ├─centos-swap 253:1 0 3.9G 0 lvm [SWAP] └─centos-home 253:2 0 21.4G 0 lvm /homevdb 252:16 0 20G 0 disk├─vdb1 252:17 0 15G 0 part /var/lib/ceph/osd/ceph-2 #挂载成功└─vdb2 252:18 0 5G 0 part 查看OSD[cephuser@ceph-admin cluster]$ ceph-deploy disk list ceph-node1 ceph-node2 ceph-node3........[ceph-node1][DEBUG ] /dev/vdb2 ceph journal, for /dev/vdb1 #如下显示这两个分区，则表示成功了[ceph-node1][DEBUG ] /dev/vdb1 ceph data, active, cluster ceph, osd.0, journal /dev/vdb2........[ceph-node3][DEBUG ] /dev/vdb2 ceph journal, for /dev/vdb1 [ceph-node3][DEBUG ] /dev/vdb1 ceph data, active, cluster ceph, osd.1, journal /dev/vdb2.......[ceph-node3][DEBUG ] /dev/vdb2 ceph journal, for /dev/vdb1[ceph-node3][DEBUG ] /dev/vdb1 ceph data, active, cluster ceph, osd.2, journal /dev/vdb2 用ceph-deploy把配置文件和admin密钥拷贝到管理节点和Ceph节点，这样你每次执行Ceph命令行时就无需指定monit节点地址和ceph.client.admin.keyring了[cephuser@ceph-admin cluster]$ ceph-deploy admin ceph-admin ceph-node1 ceph-node2 ceph-node3 修改密钥权限[cephuser@ceph-admin cluster]$ sudo chmod 644 /etc/ceph/ceph.client.admin.keyring 检查ceph状态[cephuser@ceph-admin cluster]$ sudo ceph healthHEALTH_OK[cephuser@ceph-admin cluster]$ sudo ceph -s cluster 33bfa421-8a3b-40fa-9f14-791efca9eb96 health HEALTH_OK monmap e1: 1 mons at {ceph-admin=192.168.10.220:6789/0} election epoch 3, quorum 0 ceph-admin osdmap e14: 3 osds: 3 up, 3 in flags sortbitwise,require_jewel_osds pgmap v29: 64 pgs, 1 pools, 0 bytes data, 0 objects 100 MB used, 45946 MB / 46046 MB avail 64 active+clean 查看ceph osd运行状态[cephuser@ceph-admin ~]$ ceph osd stat osdmap e19: 3 osds: 3 up, 3 in flags sortbitwise,require_jewel_osds 查看osd的目录树[cephuser@ceph-admin ~]$ ceph osd treeID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY-1 0.04376 root default -2 0.01459 host ceph-node1 0 0.01459 osd.0 up 1.00000 1.00000-3 0.01459 host ceph-node2 1 0.01459 osd.1 up 1.00000 1.00000-4 0.01459 host ceph-node3 2 0.01459 osd.2 up 1.00000 1.00000 查看monit监控节点的服务情况[cephuser@ceph-admin cluster]$ sudo systemctl status ceph-mon@ceph-admin[cephuser@ceph-admin cluster]$ ps -ef|grep ceph|grep 'cluster'ceph 28190 1 0 11:44 ? 00:00:01 /usr/bin/ceph-mon -f --cluster ceph --id ceph-admin --setuser ceph --setgroup ceph 分别查看下ceph-node1、ceph-node2、ceph-node3三个节点的osd服务情况，发现已经在启动中。[cephuser@ceph-node1 ~]$ sudo systemctl status ceph-osd@0.service #启动是start、重启是restart[cephuser@ceph-node1 ~]$ sudo ps -ef|grep ceph|grep "cluster"ceph 28749 1 0 11:44 ? 00:00:00 /usr/bin/ceph-osd -f --cluster ceph --id 0 --setuser ceph --setgroup cephcephuser 29197 29051 0 11:54 pts/2 00:00:00 grep --color=auto cluster [cephuser@ceph-node2 ~]$ sudo systemctl status ceph-osd@1.service[cephuser@ceph-node2 ~]$ sudo ps -ef|grep ceph|grep "cluster"ceph 28749 1 0 11:44 ? 00:00:00 /usr/bin/ceph-osd -f --cluster ceph --id 0 --setuser ceph --setgroup cephcephuser 29197 29051 0 11:54 pts/2 00:00:00 grep --color=auto cluster [cephuser@ceph-node3 ~]$ sudo systemctl status ceph-osd@2.service[cephuser@ceph-node3 ~]$ sudo ps -ef|grep ceph|grep "cluster"ceph 28749 1 0 11:44 ? 00:00:00 /usr/bin/ceph-osd -f --cluster ceph --id 0 --setuser ceph --setgroup cephcephuser 29197 29051 0 11:54 pts/2 00:00:00 grep --color=auto cluster |
4）创建文件系统
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先查看管理节点状态，默认是没有管理节点的。[cephuser@ceph-admin ~]$ ceph mds state1: 创建管理节点（ceph-admin作为管理节点）。需要注意：如果不创建mds管理节点，client客户端将不能正常挂载到ceph集群！！[cephuser@ceph-admin ~]$ pwd/home/cephuser[cephuser@ceph-admin ~]$ cd cluster/[cephuser@ceph-admin cluster]$ ceph-deploy mds create ceph-admin 再次查看管理节点状态，发现已经在启动中[cephuser@ceph-admin cluster]$ ceph mds state2:, 1 up:standby[cephuser@ceph-admin cluster]$ sudo systemctl status ceph-mds@ceph-admin[cephuser@ceph-admin cluster]$ ps -ef|grep cluster|grep ceph-mdsceph 29093 1 0 12:46 ? 00:00:00 /usr/bin/ceph-mds -f --cluster ceph --id ceph-admin --setuser ceph --setgroup ceph 创建pool，pool是ceph存储数据时的逻辑分区,它起到namespace的作用[cephuser@ceph-admin cluster]$ ceph osd lspools #先查看pool0 rbd, 新创建的ceph集群只有rdb一个pool。这时需要创建一个新的pool[cephuser@ceph-admin cluster]$ ceph osd pool create cephfs_data 10 #后面的数字是PG的数量pool 'cephfs_data' created [cephuser@ceph-admin cluster]$ ceph osd pool create cephfs_metadata 10 #创建pool的元数据pool 'cephfs_metadata' created [cephuser@ceph-admin cluster]$ ceph fs new myceph cephfs_metadata cephfs_datanew fs with metadata pool 2 and data pool 1 再次查看pool状态[cephuser@ceph-admin cluster]$ ceph osd lspools0 rbd,1 cephfs_data,2 cephfs_metadata, 检查mds管理节点状态[cephuser@ceph-admin cluster]$ ceph mds state5: 1/1/1 up {0=ceph-admin=up:active} 查看ceph集群状态[cephuser@ceph-admin cluster]$ sudo ceph -s cluster 33bfa421-8a3b-40fa-9f14-791efca9eb96 health HEALTH_OK monmap e1: 1 mons at {ceph-admin=192.168.10.220:6789/0} election epoch 3, quorum 0 ceph-admin fsmap e5: 1/1/1 up {0=ceph-admin=up:active} #多了此行状态 osdmap e19: 3 osds: 3 up, 3 in flags sortbitwise,require_jewel_osds pgmap v48: 84 pgs, 3 pools, 2068 bytes data, 20 objects 101 MB used, 45945 MB / 46046 MB avail 84 active+clean 查看ceph集群端口[cephuser@ceph-admin cluster]$ sudo lsof -i:6789COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAMEceph-mon 28190 ceph 10u IPv4 70217 0t0 TCP ceph-admin:smc-https (LISTEN)ceph-mon 28190 ceph 19u IPv4 70537 0t0 TCP ceph-admin:smc-https->ceph-node1:41308 (ESTABLISHED)ceph-mon 28190 ceph 20u IPv4 70560 0t0 TCP ceph-admin:smc-https->ceph-node2:48516 (ESTABLISHED)ceph-mon 28190 ceph 21u IPv4 70583 0t0 TCP ceph-admin:smc-https->ceph-node3:44948 (ESTABLISHED)ceph-mon 28190 ceph 22u IPv4 72643 0t0 TCP ceph-admin:smc-https->ceph-admin:51474 (ESTABLISHED)ceph-mds 29093 ceph 8u IPv4 72642 0t0 TCP ceph-admin:51474->ceph-admin:smc-https (ESTABLISHED) |
5）client端挂载ceph存储（采用fuse方式）
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安装ceph-fuse（这里的客户机是centos6系统）[root@centos6-02 ~]# rpm -Uvh https://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm[root@centos6-02 ~]# yum install -y ceph-fuse创建挂载目录[root@centos6-02 ~]# mkdir /cephfs复制配置文件将ceph配置文件ceph.conf从管理节点copy到client节点（192.168.10.220为管理节点）[root@centos6-02 ~]# rsync -e "ssh -p22" -avpgolr root@192.168.10.220:/etc/ceph/ceph.conf /etc/ceph/或者[root@centos6-02 ~]# rsync -e "ssh -p22" -avpgolr root@192.168.10.220:/home/cephuser/cluster/ceph.conf /etc/ceph/ #两个路径下的文件内容一样复制密钥将ceph的ceph.client.admin.keyring从管理节点copy到client节点[root@centos6-02 ~]# rsync -e "ssh -p22" -avpgolr root@192.168.10.220:/etc/ceph/ceph.client.admin.keyring /etc/ceph/或者[root@centos6-02 ~]# rsync -e "ssh -p22" -avpgolr root@192.168.10.220:/home/cephuser/cluster/ceph.client.admin.keyring /etc/ceph/查看ceph授权[root@centos6-02 ~]# ceph auth listinstalled auth entries:mds.ceph-admin key: AQAZZxdbH6uAOBAABttpSmPt6BXNtTJwZDpSJg== caps: [mds] allow caps: [mon] allow profile mds caps: [osd] allow rwxosd.0 key: AQCuWBdbV3TlBBAA4xsAE4QsFQ6vAp+7pIFEHA== caps: [mon] allow profile osd caps: [osd] allow *osd.1 key: AQC6WBdbakBaMxAAsUllVWdttlLzEI5VNd/41w== caps: [mon] allow profile osd caps: [osd] allow *osd.2 key: AQDJWBdbz6zNNhAATwzL2FqPKNY1IvQDmzyOSg== caps: [mon] allow profile osd caps: [osd] allow *client.admin key: AQCNWBdbf1QxAhAAkryP+OFy6wGnKR8lfYDkUA== caps: [mds] allow * caps: [mon] allow * caps: [osd] allow *client.bootstrap-mds key: AQCNWBdbnjLILhAAT1hKtLEzkCrhDuTLjdCJig== caps: [mon] allow profile bootstrap-mdsclient.bootstrap-mgr key: AQCOWBdbmxEANBAAiTMJeyEuSverXAyOrwodMQ== caps: [mon] allow profile bootstrap-mgrclient.bootstrap-osd key: AQCNWBdbiO1bERAARLZaYdY58KLMi4oyKmug4Q== caps: [mon] allow profile bootstrap-osdclient.bootstrap-rgw key: AQCNWBdboBLXIBAAVTsD2TPJhVSRY2E9G7eLzQ== caps: [mon] allow profile bootstrap-rgw将ceph集群存储挂载到客户机的/cephfs目录下[root@centos6-02 ~]# ceph-fuse -m 192.168.10.220:6789 /cephfs2018-06-06 14:28:54.149796 7f8d5c256760 -1 init, newargv = 0x4273580 newargc=11ceph-fuse[16107]: starting ceph clientceph-fuse[16107]: starting fuse[root@centos6-02 ~]# df -hFilesystem Size Used Avail Use% Mounted on/dev/mapper/vg_centos602-lv_root 50G 3.5G 44G 8% /tmpfs 1.9G 0 1.9G 0% /dev/shm/dev/vda1 477M 41M 412M 9% /boot/dev/mapper/vg_centos602-lv_home 45G 52M 43G 1% /home/dev/vdb1 20G 5.1G 15G 26% /data/osd1ceph-fuse 45G 100M 45G 1% /cephfs由上面可知，已经成功挂载了ceph存储，三个osd节点，每个节点有15G（在节点上通过"lsblk"命令可以查看ceph data分区大小）,一共45G！取消ceph存储的挂载[root@centos6-02 ~]# umount /cephfs温馨提示：当有一半以上的OSD节点挂掉后，远程客户端挂载的Ceph存储就会使用异常了，即暂停使用。比如本案例中有3个OSD节点，当其中一个OSD节点挂掉后（比如宕机），客户端挂载的Ceph存储使用正常；但当有2个OSD节点挂掉后，客户端挂载的Ceph存储就不能正常使用了（表现为Ceph存储目录下的数据读写操作一直卡着状态），当OSD节点恢复后，Ceph存储也会恢复正常使用。OSD节点宕机重新启动后，osd程序会自动起来（通过监控节点自动起来） |
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-------------------------------------------------------------------清除ceph存储清除安装包[cephuser@ceph-admin ~]$ ceph-deploy purge ceph1 ceph2 ceph3 清除配置信息[cephuser@ceph-admin ~]$ ceph-deploy purgedata ceph1 ceph2 ceph3[cephuser@ceph-admin ~]$ ceph-deploy forgetkeys 每个节点删除残留的配置文件[cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/osd/*[cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/mon/*[cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/mds/*[cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/bootstrap-mds/*[cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/bootstrap-osd/*[cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/bootstrap-mon/*[cephuser@ceph-admin ~]$ sudo rm -rf /var/lib/ceph/tmp/*[cephuser@ceph-admin ~]$ sudo rm -rf /etc/ceph/*[cephuser@ceph-admin ~]$ sudo rm -rf /var/run/ceph/*-----------------------------------------------------------------------查看ceph命令，关于ceph osd、ceph mds、ceph mon、ceph pg的命令[cephuser@ceph-admin ~]$ ceph --help -----------------------------------------------------------------------如下报错[cephuser@ceph-admin ~]$ ceph osd tree2018-06-06 14:56:27.843841 7f8a0b6dd700 -1 auth: unable to find a keyring on /etc/ceph/ceph.client.admin.keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin: (2) No such file or directory2018-06-06 14:56:27.843853 7f8a0b6dd700 -1 monclient(hunting): ERROR: missing keyring, cannot use cephx for authentication2018-06-06 14:56:27.843854 7f8a0b6dd700 0 librados: client.admin initialization error (2) No such file or directoryError connecting to cluster: ObjectNotFound[cephuser@ceph-admin ~]$ ceph osd stat2018-06-06 14:55:58.165882 7f377a1c9700 -1 auth: unable to find a keyring on /etc/ceph/ceph.client.admin.keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin: (2) No such file or directory2018-06-06 14:55:58.165894 7f377a1c9700 -1 monclient(hunting): ERROR: missing keyring, cannot use cephx for authentication2018-06-06 14:55:58.165896 7f377a1c9700 0 librados: client.admin initialization error (2) No such file or directory解决办法：[cephuser@ceph-admin ~]$ sudo chmod 644 /etc/ceph/ceph.client.admin.keyring[cephuser@ceph-admin ~]$ ceph osd stat osdmap e35: 3 osds: 3 up, 3 in flags sortbitwise,require_jewel_osds[cephuser@ceph-admin ~]$ ceph osd treeID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY-1 0.04376 root default -2 0.01459 host ceph-node1 0 0.01459 osd.0 up 1.00000 1.00000-3 0.01459 host ceph-node2 1 0.01459 osd.1 up 1.00000 1.00000-4 0.01459 host ceph-node3 2 0.01459 osd.2 up 1.00000 1.00000 |