Re: deploying Ceph using FQDN for MON / MDS Services

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Hi All,
Requesting any inputs around the issue raised.

Best Regards,
Lokendra

On Tue, 24 Jan, 2023, 7:32 pm Lokendra Rathour, <lokendrarathour@xxxxxxxxx>
wrote:

> Hi Team,
>
>
>
> We have a ceph cluster with 3 storage nodes:
>
> 1. storagenode1 - abcd:abcd:abcd::21
>
> 2. storagenode2 - abcd:abcd:abcd::22
>
> 3. storagenode3 - abcd:abcd:abcd::23
>
>
>
> The requirement is to mount ceph using the domain name of MON node:
>
> Note: we resolved the domain name via DNS server.
>
>
> For this we are using the command:
>
> ```
>
> mount -t ceph [storagenode.storage.com]:6789:/  /backup -o
> name=admin,secret=AQCM+8hjqzuZEhAAcuQc+onNKReq7MV+ykFirg==
>
> ```
>
>
>
> We are getting the following logs in /var/log/messages:
>
> ```
>
> Jan 24 17:23:17 localhost kernel: libceph: resolve '
> storagenode.storage.com' (ret=-3): failed
>
> Jan 24 17:23:17 localhost kernel: libceph: parse_ips bad ip '
> storagenode.storage.com:6789'
>
> ```
>
>
>
> We also tried mounting ceph storage using IP of MON which is working fine.
>
>
>
> Query:
>
>
> Could you please help us out with how we can mount ceph using FQDN.
>
>
>
> My /etc/ceph/ceph.conf is as follows:
>
> [global]
>
> ms bind ipv6 = true
>
> ms bind ipv4 = false
>
> mon initial members = storagenode1,storagenode2,storagenode3
>
> osd pool default crush rule = -1
>
> fsid = 7969b8a3-1df7-4eae-8ccf-2e5794de87fe
>
> mon host =
> [v2:[abcd:abcd:abcd::21]:3300,v1:[abcd:abcd:abcd::21]:6789],[v2:[abcd:abcd:abcd::22]:3300,v1:[abcd:abcd:abcd::22]:6789],[v2:[abcd:abcd:abcd::23]:3300,v1:[abcd:abcd:abcd::23]:6789]
>
> public network = abcd:abcd:abcd::/64
>
> cluster network = eff0:eff0:eff0::/64
>
>
>
> [osd]
>
> osd memory target = 4294967296
>
>
>
> [client.rgw.storagenode1.rgw0]
>
> host = storagenode1
>
> keyring = /var/lib/ceph/radosgw/ceph-rgw.storagenode1.rgw0/keyring
>
> log file = /var/log/ceph/ceph-rgw-storagenode1.rgw0.log
>
> rgw frontends = beast endpoint=[abcd:abcd:abcd::21]:8080
>
> rgw thread pool size = 512
>
> --
> ~ Lokendra
> skype: lokendrarathour
>
>
>
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