On Tue, Jan 22, 2019 at 8:54 PM Liu, Changcheng <changcheng.liu@xxxxxxxxx> wrote: > > 2) result: > [{"id":-1,"name":"default","type":"root","type_id":10,"children":[]}][] What version of Ceph are you using? Also.. is that the entire command output? For example, on the latest version I would expect there to be a "nodes" item: { "nodes": [ { "id": -1, "name": "default", "type": "root", "type_id": 10, "children": [ -3 ] ... ], "stray": [] }