'ceph-deploy mon create-initial failed

I've tried reinstall and reconf serveral times, but it still doesn't work.

[ceph2][INFO  ] Running command: /usr/bin/ceph --connect-timeout=25 --cluster=ceph --admin-daemon=/var/run/ceph/ceph-mon.ceph2.asok mon_status
[ceph2][INFO  ] Running command: /usr/bin/ceph --connect-timeout=25 --cluster=ceph --name mon. --keyring=/var/lib/ceph/mon/ceph-ceph2/keyring auth get client.admin
[ceph2][ERROR ] "ceph auth get-or-create for keytype admin returned -6
[ceph2][DEBUG ] 2022-01-29 14:55:26.985 fffd688ef1e0 -1 auth: unable to find a keyring on /etc/ceph/ceph.mon..keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin,: (2) No such file or directory
[ceph2][DEBUG ] 2022-01-29 14:55:26.985 fffd688ef1e0 -1 AuthRegistry(0xfffd64081ea8) no keyring found at /etc/ceph/ceph.mon..keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin,, disabling cephx
[ceph2][DEBUG ] terminate called after throwing an instance of 'boost::wrapexcept<boost::bad_get>'
[ceph2][DEBUG ]   what():  boost::bad_get: failed value get using boost::get
[ceph2][ERROR ] Failed to return 'admin' key from host ceph2
[ceph_deploy.gatherkeys][ERROR ] Failed to connect to host:ceph2
[ceph_deploy.gatherkeys][INFO  ] Destroy temp directory /tmp/tmpAkf4Uq
[ceph_deploy][ERROR ] RuntimeError: Failed to connect any mon

Here's my ceph.conf, my ip is 96.10.64.118

[global]
fsid = 84fc66f3-167b-4198-8a1d-942d16baf9a9
mon_initial_members = ceph2
mon_host = 96.10.64.118
auth_cluster_required = cephx
auth_service_required = cephx
auth_client_required = cephx

public_network = 96.10.64.0/23
osd pool default size = 1
osd pool default min size = 1
[mon]
mon_allow_pool_delete = true
ceph


Solution 1:[1]

This is a very common error and it happens when some parameters are missing or wrong in the /etc/ceph/ceph.conf file. Looking at your ceph.conf file, it seems your error is due to following three parameters:

  • mon_initial_members =.....
  • mon_host =.....
  • public_network=.....

For network configurations and particularly public network configuration check following three options:

Also make sure that the hostname on the server is the same in the ceph.conf file.

Apart from it, it can also be related to firewall like this.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 BZKN

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