centos7.5安装ceph遇到的问题汇总

问题一：

ceph版本-jewel

用ssd盘来journal ，格式分区权限问题

[ceph-node2][WARNIN] ceph_disk.main.FilesystemTypeError: Cannot discover filesystem type: device /dev/sdc: Line is truncated: 
[ceph-node2][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/sdc

 
在报错的节点上执行下面命令

[root@ceph-node3 ~]# ceph-disk activate-all


权限有问题无法启动osd盘

解决办法：

增加用户和磁盘的权限，重启后也需要增加

chown ceph:ceph /dev/sdb2

问题二：在不同节点安装ceph时，出现以下异常：

ceph deploy RuntimeError: NoSectionError: No section: 'ceph'

解决方法：
在报错的机器上尝试：
yum remove ceph-release
rm  /etc/yum.repos.d/ceph.repo.rpmsave

问题三：ceph用户没有权限，**执行激活osd盘时出现 **。

ceph-deploy osd activate node2:/var/local/osd0 node3:/var/local/osd1

[node3][WARNIN] ceph_disk.main.Error: Error: ['ceph-osd', '--cluster', 'ceph', '--mkfs', '--mkkey', '-i', '1', '--monmap', '/var/local/osd1/activate.monmap', '--osd-data', '/var/local/osd1', '--osd-journal', '/var/local/osd1/journal', '--osd-uuid', 'ee9c4a6c-e2b5-46cd-9e91-fd5d6f36fd57', '--keyring', '/var/local/osd1/keyring', '--setuser', 'ceph', '--setgroup', 'ceph'] failed : 2016-08-31 16:38:58.909449 7f48adbb7800 -1 filestore(/var/local/osd1) mkfs: write_version_stamp() failed: (13) Permission denied
[node3][WARNIN] 2016-08-31 16:38:58.909475 7f48adbb7800 -1 OSD::mkfs: ObjectStore::mkfs failed with error -13
[node3][WARNIN] 2016-08-31 16:38:58.909529 7f48adbb7800 -1  ** ERROR: error creating empty object store in /var/local/osd1: (13) Permission denied
[node3][WARNIN]
[node3][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 /var/local/osd1



解决方法

chown ceph:ceph  /var/local/osd
chown ceph:ceph  /var/local/osd

问题四：RuntimeError: bootstrap-rgw keyring not found; run 'gatherkeys'

root@admin ceph]# ceph-deploy rgw create node2
[ceph_deploy.conf][DEBUG ] found configuration file at: /root/.cephdeploy.conf
[ceph_deploy.cli][INFO  ] Invoked (1.5.34): /usr/bin/ceph-deploy rgw create node2
[ceph_deploy.cli][INFO  ] ceph-deploy options:
[ceph_deploy.cli][INFO  ]  username                      : None
[ceph_deploy.cli][INFO  ]  verbose                       : False
[ceph_deploy.cli][INFO  ]  rgw                           : [('node2', 'rgw.node2')]
[ceph_deploy.cli][INFO  ]  overwrite_conf                : False
[ceph_deploy.cli][INFO  ]  subcommand                    : create
[ceph_deploy.cli][INFO  ]  quiet                         : False
[ceph_deploy.cli][INFO  ]  cd_conf                       : <ceph_deploy.conf.cephdeploy.Conf instance at 0x24aed88>
[ceph_deploy.cli][INFO  ]  cluster                       : ceph
[ceph_deploy.cli][INFO  ]  func                          : <function rgw at 0x241da28>
[ceph_deploy.cli][INFO  ]  ceph_conf                     : None
[ceph_deploy.cli][INFO  ]  default_release               : False
[ceph_deploy.rgw][DEBUG ] Deploying rgw, cluster ceph hosts node2:rgw.node2
[ceph_deploy][ERROR ] RuntimeError: bootstrap-rgw keyring not found; run 'gatherkeys'


解决方案：   ceph-deploy gatherkeys node2

问题五：Bad owner or permissions on .ssh/config的解决

当为本机配一个固定用户名远程登录某主机时，配置了一个config文件，但是在执行ssh免密码登录时报如下的错误：Bad owner or permissions on .ssh/config的解决。

经过查找资料发下解决办法如下：

sudo chmod 600 config

centos7.5安装ceph遇到的问题汇总

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