Created attachment 1514030 [details]
Screenshot of graph with osds representing values

Description of problem:
Number of osds representing values in graphs are less than number of actual osds present in cluster.
Graphs are 'All Disk utilisation','All Disk IOPS','All Disk Latency','All Throughput by Disk' graphs in "OSD Node Detail" dashboard

Version-Release number of selected component (if applicable):
cephmetrics-ansible-2.0.1-1.el7cp.x86_64
ceph-ansible-3.2.0-0.1.rc8.el7cp.noarch

How reproducible:
Always

Steps to Reproduce:
1.Install ceph cluster
2.Install ceph-metrics
3.Goto 'OSD Node Detail' dashboard
4.check number of osds representing values in all 4 disk graghs

Actual results:
Number of osds representing values are less in graphs

Expected results:
Number of osds representing values should be correct in graph.


Additional info:
sudo ceph osd tree
ID CLASS WEIGHT  TYPE NAME         STATUS REWEIGHT PRI-AFF 
-1       7.82686 root default                              
-3       2.61719     host magna066                         
 1   hdd 0.65430         osd.1         up  1.00000 1.00000 
 3   hdd 0.65430         osd.3         up  1.00000 1.00000 
 5   hdd 0.65430         osd.5         up  1.00000 1.00000 
 7   hdd 0.65430         osd.7         up  1.00000 1.00000 
-5       2.61719     host magna087                         
 0   hdd 0.65430         osd.0         up  1.00000 1.00000 
 4   hdd 0.65430         osd.4         up  1.00000 1.00000 
 8   hdd 0.65430         osd.8         up  1.00000 1.00000 
10   hdd 0.65430         osd.10        up  1.00000 1.00000 
-7       2.59248     host magna089                         
 2   hdd 0.77309         osd.2         up  1.00000 1.00000 
 6   hdd 0.90970         osd.6         up  1.00000 1.00000 
 9   hdd 0.90970         osd.9         up  1.00000 1.00000 

(11 osds present in cluster)
(gragh showing 9 osds)