rbdmap service doesnt start

Hi
I get the below errror while starteing the rbdmap service .

Jun 28 11:28:37 infra3-oc-eaa.stc.com.sa kernel: libceph: no secret set (for auth_x protocol)
Jun 28 11:28:37 infra3-oc-eaa.stc.com.sa kernel: libceph: error -22 on auth protocol 2 init

Any idea on this error . What it means .
thanks
Sadiq