Ceph

example - The ceph pool, "data" is already present. if I try to create a new pool named data again, there is no error -
host-44-0-2-109:~ # rados mkpool data
successfully created pool data

I learned that that's a feature rather than a bug because all commands should be idempotent where possible. However, if you look at rados rmpool, then it's the opposite. It does throw an error message -
rados rmpool data2 data2 --yes-i-really-really-mean-it
pool data2 does not exist
error 2: (2) No such file or directory

P.S - This seems to be ficed in Hammer and I do get ecxpected error emssage -
jenkins@host-44-0-2-109:~> rados -p data mkpool data
error creating pool data: (17) File exists