[ceph-users] librados : handle_auth_bad_method server allowed_methods [2] but i only support [2,1]

# ceph osd pool ls detail | grep user1 pool 5 'user1' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 256 pgp_num 256 autoscale_mode warn last_change 108 flags hashpspool max_bytes 1099511627776 stripe_width 0 application user1

# ceph auth get client.user1 exported keyring for client.user1> client.user1 key: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX== caps: [mon] allow r caps: [osd] allow rw pool=user1 namespace=user1

$ cat ~/ceph.conf> [global] mon host = [v2:10.90.36.16:3300,v1:10.90.36.16:6789],[v2:10.90.36.17:3300,v1:10.90.36.17:6789],[v2:10.90.36.18:3300,v1:10.90.36.18:6789] keyring = ~/user1.keyring

$ cat ~/user1.keyring XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX==

$ rados -c ~/ceph.conf -p pool ls 2020-04-02 12:44:59.900 7fd78aea3700 -1 monclient(hunting): handle_auth_bad_method server allowed_methods [2] but i only support [2,1] 2020-04-02 12:44:59.900 7fd789ea1700 -1 monclient(hunting): handle_auth_bad_method server allowed_methods [2] but i only support [2,1] 2020-04-02 12:44:59.900 7fd78a6a2700 -1 monclient(hunting): handle_auth_bad_method server allowed_methods [2] but i only support [2,1] failed to fetch mon config (--no-mon-config to skip)