@pre rados_connect() has not been called on the cluster handle
@param cluster cluster handle to configure
@param option option to set
@param value value of the option
@returns 0 on success, negative error code on failure
@returns -ENOENT when the option is not a Ceph configuration option
Set a configuration option
@pre rados_connect() has not been called on the cluster handle
@param cluster cluster handle to configure @param option option to set @param value value of the option @returns 0 on success, negative error code on failure @returns -ENOENT when the option is not a Ceph configuration option