Ceph report fixes and Ceph bench beta 0.1

- Ceph stats collection
- Updated Ceph results averages calculations

Fixes:
- Fixed huge PG dump copying >30MB jsons
- Fixes for the fio-runner constants

 Related-PROD: PROD-36669

Change-Id: Id8e250f626dfdaecc12ad005b61d03a21c9e6c4e
diff --git a/cfg_checker/nodes.py b/cfg_checker/nodes.py
index a673842..b908571 100644
--- a/cfg_checker/nodes.py
+++ b/cfg_checker/nodes.py
@@ -1310,7 +1310,7 @@
         # set namings
         _n = "cfgagent-{:02}".format(index)
         _pvc_n = "cfgagent-pvc-{:02}".format(index)
-        _pv_n = "cfgagent-pv-{:02}".format(index)
+        # _pv_n = "cfgagent-pv-{:02}".format(index)
 
         _pod["metadata"]["name"] = _n
         _pod["metadata"]["labels"]["name"] = _n
@@ -1318,24 +1318,25 @@
         for _c in _pod["spec"]["containers"]:
             for _mnt in _c["volumeMounts"]:
                 if "placeholder" in _mnt["name"]:
-                    _mnt["name"] = _pv_n
+                    # _mnt["name"] = _pv_n
                     _mnt["mountPath"] = path
         # replace claim
         for _v in _pod["spec"]["volumes"]:
             if "placeholder" in _v["name"]:
-                _v["name"] = _pv_n
+                # _v["name"] = _pv_n
                 _v["persistentVolumeClaim"]["claimName"] = _pvc_n
 
         # init volume resources
-        _pv_object = self.kube.init_pv_resource(_pv_n, sc, size, path)
-        _pv = self.kube.prepare_pv(_pv_object)
+        # _pv_object = self.kube.init_pv_resource(_pv_n, sc, size, path)
+        # _pv = self.kube.prepare_pv(_pv_object)
         _pvc_object = self.kube.init_pvc_resource(_pvc_n, sc, size)
         _pvc = self.kube.prepare_pvc(_pvc_object)
 
         # start pod
         _pod = self.kube.prepare_pod_from_yaml(_pod)
 
-        return _pod, _pv, _pvc
+        # return _pod, _pv, _pvc
+        return _pod, _pvc
 
     def expose_benchmark_agent(self, agent):
         return self.kube.expose_pod_port(agent, 8765)