Hello Ceph user peers, I am trying to setup a Ceph cluster in OpenStack cloud. I remotely created 3 VMs via Horizon (GUI). I successfully manually installed Ceph in all the nodes and wanted to make *ceph-node-1* as the Monitor (to start with).
The IP addresses for three nodes are: ceph-node-1 10.245.121.25 ceph-node-2 10.245.121.27 ceph-node-3 10.245.121.28 all these IP were assigned by DHCP protocol. The "*/etc/ceph/ceph.conf*" file looks like as follows: ------------------------------------------------ [*global]* *fsid=eb0a886e-da28-4253-89bf-a442b81ff522* *public network = 10.245.121.0/24 <http://10.245.121.0/24>* *osd pool default min size = 1* *osd pool default pg num= 128* *osd pool default pgp num = 128* *osd journal size = 1024* *mon initial members = ceph-node-1* *mon host = 10.245.121.25* ----------------------------------------------- when I run: # *ceph-mon --mkfs -i ceph-node-1 --monmap /tmp/monmap --keyring /tmp/ceph.mon.keyring* I get the following message: *2015-08-03 07:40:34.952903 7f7bbf0037a0 -1 unable to find any IP address in networks: 10.245.121.0/24 <http://10.245.121.0/24>* what can be the reason? how can I solve this problem? Thank you in advance. Jiwan
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