ceph bench module hotfixes after client run

   Related-PROD: PROD-37028

Change-Id: Ie281746adfedc8706c26d3a27347679d070c45bb
diff --git a/cfg_checker/modules/ceph/info.py b/cfg_checker/modules/ceph/info.py
index 1fb9205..ce115ff 100644
--- a/cfg_checker/modules/ceph/info.py
+++ b/cfg_checker/modules/ceph/info.py
@@ -79,8 +79,9 @@
                 continue
             else:
                 # TODO: Consider filtering out or prepare data for the table
-                _osd = _d.pop("osd_name")
-                _node_name = _d.pop("node_name")
+                _osd = _d.pop("osd_name") if "osd_name" in _d else "unknown"
+                _node_name = _d.pop("node_name") \
+                    if "node_name" in _d else "unknown"
                 # Additional check for empty data
                 if not _d:
                     self.ceph_info['ceph_health']['latest'][_n] = {}