Fix paxos latency, fix osd storage used

ceph-cluster.json

@@ -53,7 +53,7 @@
   "gnetId": 2842,
   "graphTooltip": 0,
   "id": null,
-  "iteration": 1545146825838,
+  "iteration": 1545162803069,
   "links": [],
   "panels": [
     {
@@ -1273,7 +1273,7 @@
       "tableColumn": "",
       "targets": [
         {
-          "expr": "avg(ceph_paxos_refresh_latency_sum{job=\"$job\"}/ceph_paxos_refresh_latency_count{job=\"$job\"})",
+          "expr": "sum(increase(ceph_paxos_refresh_latency_sum{job=\"$job\"}[1m]))/clamp_min(sum(increase(ceph_paxos_refresh_latency_count{job=\"$job\"}[1m])),1)",
           "format": "time_series",
           "interval": "$interval",
           "intervalFactor": 1,
@@ -2640,7 +2640,7 @@
       "steppedLine": false,
       "targets": [
         {
-          "expr": "ceph_osd_stat_bytes_used{job=\"ceph\"}",
+          "expr": "ceph_osd_stat_bytes_used{job=\"$job\"}",
           "format": "time_series",
           "interval": "60s",
           "intervalFactor": 1,
@@ -2943,5 +2943,5 @@
   "timezone": "browser",
   "title": "Ceph - Cluster",
   "uid": "vwcB0Bzmk",
-  "version": 14
+  "version": 16
 }