经验总结

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分布式存储系统之Ceph集群MDS扩展( 三 )

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提示：这里出了两个错误，第一个错误是没有找到ceph.conf文件，解决办法就是切换至cephadm用户执行ceph-deploy mds create命令；第二个错误是告诉我们说远程主机上的配置文件和我们本地配置文件不一样；解决办法，可以先推送配置文件到集群各主机之上或者从集群主机拉取配置文件到本地然后在分发配置文件，然后在部署mds；
查看本地配置文件和远程集群主机配置文件
[cephadm@ceph-admin ceph-cluster]$ cat /etc/ceph/ceph.conf[global]fsid = 7fd4a619-9767-4b46-9cee-78b9dfe88f34mon_initial_members = ceph-mon01mon_host = 192.168.0.71public_network = 192.168.0.0/24cluster_network = 172.16.30.0/24auth_cluster_required = cephxauth_service_required = cephxauth_client_required = cephx [cephadm@ceph-admin ceph-cluster]$ ssh ceph-mon01 'cat /etc/ceph/ceph.conf'[global]fsid = 7fd4a619-9767-4b46-9cee-78b9dfe88f34mon_initial_members = ceph-mon01mon_host = 192.168.0.71public_network = 192.168.0.0/24cluster_network = 172.16.30.0/24auth_cluster_required = cephxauth_service_required = cephxauth_client_required = cephx [client]rgw_frontends = "civetweb port=8080"[cephadm@ceph-admin ceph-cluster]$提示：可以看到ceph-mon01节点上的配置文件中多了一个client的配置段；
从ceph-mon01拉去配置文件到本地
[cephadm@ceph-admin ceph-cluster]$ ceph-deploy config pull ceph-mon01[ceph_deploy.conf][DEBUG ] found configuration file at: /home/cephadm/.cephdeploy.conf[ceph_deploy.cli][INFO  ] Invoked (2.0.1): /bin/ceph-deploy config pull ceph-mon01[ceph_deploy.cli][INFO  ] ceph-deploy options:[ceph_deploy.cli][INFO  ]  username                      : None[ceph_deploy.cli][INFO  ]  verbose                       : False[ceph_deploy.cli][INFO  ]  overwrite_conf                : False[ceph_deploy.cli][INFO  ]  subcommand                    : pull[ceph_deploy.cli][INFO  ]  quiet                         : False[ceph_deploy.cli][INFO  ]  cd_conf                       : <ceph_deploy.conf.cephdeploy.Conf instance at 0x7f966fb478c0>[ceph_deploy.cli][INFO  ]  cluster                       : ceph[ceph_deploy.cli][INFO  ]  client                        : ['ceph-mon01'][ceph_deploy.cli][INFO  ]  func                          : <function config at 0x7f966fd76cf8>[ceph_deploy.cli][INFO  ]  ceph_conf                     : None[ceph_deploy.cli][INFO  ]  default_release               : False[ceph_deploy.config][DEBUG ] Checking ceph-mon01 for /etc/ceph/ceph.conf[ceph-mon01][DEBUG ] connection detected need for sudo[ceph-mon01][DEBUG ] connected to host: ceph-mon01[ceph-mon01][DEBUG ] detect platform information from remote host[ceph-mon01][DEBUG ] detect machine type[ceph-mon01][DEBUG ] fetch remote file[ceph_deploy.config][DEBUG ] Got /etc/ceph/ceph.conf from ceph-mon01[ceph_deploy.config][ERROR ] local config file ceph.conf exists with different content; use --overwrite-conf to overwrite[ceph_deploy.config][ERROR ] Unable to pull /etc/ceph/ceph.conf from ceph-mon01[ceph_deploy][ERROR ] GenericError: Failed to fetch config from 1 hosts [cephadm@ceph-admin ceph-cluster]$ ceph-deploy --overwrite-conf config pull ceph-mon01[ceph_deploy.conf][DEBUG ] found configuration file at: /home/cephadm/.cephdeploy.conf[ceph_deploy.cli][INFO  ] Invoked (2.0.1): /bin/ceph-deploy --overwrite-conf config pull ceph-mon01[ceph_deploy.cli][INFO  ] ceph-deploy options:[ceph_deploy.cli][INFO  ]  username                      : None[ceph_deploy.cli][INFO  ]  verbose                       : False[ceph_deploy.cli][INFO  ]  overwrite_conf                : True[ceph_deploy.cli][INFO  ]  subcommand                    : pull[ceph_deploy.cli][INFO  ]  quiet                         : False[ceph_deploy.cli][INFO  ]  cd_conf                       : <ceph_deploy.conf.cephdeploy.Conf instance at 0x7fa2f65438c0>[ceph_deploy.cli][INFO  ]  cluster                       : ceph[ceph_deploy.cli][INFO  ]  client                        : ['ceph-mon01'][ceph_deploy.cli][INFO  ]  func                          : <function config at 0x7fa2f6772cf8>[ceph_deploy.cli][INFO  ]  ceph_conf                     : None[ceph_deploy.cli][INFO  ]  default_release               : False[ceph_deploy.config][DEBUG ] Checking ceph-mon01 for /etc/ceph/ceph.conf[ceph-mon01][DEBUG ] connection detected need for sudo[ceph-mon01][DEBUG ] connected to host: ceph-mon01[ceph-mon01][DEBUG ] detect platform information from remote host[ceph-mon01][DEBUG ] detect machine type[ceph-mon01][DEBUG ] fetch remote file[ceph_deploy.config][DEBUG ] Got /etc/ceph/ceph.conf from ceph-mon01[cephadm@ceph-admin ceph-cluster]$ lsceph.bootstrap-mds.keyring  ceph.bootstrap-osd.keyring  ceph.client.admin.keyring  ceph-deploy-ceph.logceph.bootstrap-mgr.keyring  ceph.bootstrap-rgw.keyring  ceph.conf                  ceph.mon.keyring[cephadm@ceph-admin ceph-cluster]$ cat ceph.conf[global]fsid = 7fd4a619-9767-4b46-9cee-78b9dfe88f34mon_initial_members = ceph-mon01mon_host = 192.168.0.71public_network = 192.168.0.0/24cluster_network = 172.16.30.0/24auth_cluster_required = cephxauth_service_required = cephxauth_client_required = cephx [client]rgw_frontends = "civetweb port=8080"[cephadm@ceph-admin ceph-cluster]$

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