Comment 11 for bug 1424060

The "pg query" solution could be:

after ceph osd out <osd_num>

1) run ceph pg dump, iterate over all pgs and check that osd_num is not for any pg in up or acting sets. If it is, return false (may not delete).
2) run 'ceph status' or 'ceph health detail' to check if lost objects are reported. If they are reported, get list of pgs with lost objects (e.g. 'ceph health detail' will report it), iterate over the list, runnig 'ceph pg <pg_num> query' and looking if osd_num is present in recovery_state/might_have_unfound list. If it is return false (may not delete).
3) return true (may delete).