Hi, Do you think kernel should care about DNS resolution? k > On 24 Jan 2023, at 19:07, kushagra.gupta@xxxxxxx 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 > > We have a dns server with ip abcd:abcd:abcd::31 which resolves the above ip's with a single hostname. > The resolution is as follows: > ``` > $TTL 1D > @ IN SOA storage.com root ( > 6 ; serial > 1D ; refresh > 1H ; retry > 1W ; expire > 3H ) ; minimum > > IN NS master > master IN A 10.0.1.31 > storagenode IN AAAA abcd:abcd:abcd::21 > storagenode IN AAAA abcd:abcd:abcd::22 > storagenode IN AAAA abcd:abcd:abcd::23 > ``` > > We want to mount the ceph storage on a node using this hostname. > 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 by removing the dns server and resolving the ip as follows: > ``` > abcd:abcd:abcd::21 storagenode1 > ``` > > But we are getting similar results. > > Also kindly note that we are able to perform the mount operation if we use ips instead of domain name. > > Could you please help us out with how we can mount ceph using FQDN. > > Kindly let me know if any other imformation is required. > > My ceph.conf configuration 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 > ``` > > Thanks and Regards > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
 |