Created attachment 919619 [details]
Volume Utilization Graph
Description of problem:
When a host/brick/volume is added the following gets displayed at the bottom of every graph until the reschedule happens.
-nan% Last -nan% Average -nan% Max
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Install nagios on rhs nodes.
2. Create a cluster and add volumes to it.
3. Now click on the volume, brick, cpu, memory,disk and swap utilization.
On the bottom of every graph it displays -nan% Last -nan% Average -nan% Max, till the next reschedule happens.
on the graphs it should not display -nan% Last -nan% Average -nan% Max
Similar issue is seen with snapshot restore.
When snapshot is restored, brick utilization graph displays max, last and average as -nan% until the next reschedule happens.
Similar issue seen with network utilization graphs too. When a node is just configured for monitoring with nagios, graphs for network utilization service are affected by this issue.
Looks like this is a RRD sync-up issue. We will look into further and update here. Meanwhile could you please attach the plugin xml data file before and after adding host or brick or volume.
Thank you for the bug report. However, closing this as the bug is filed against gluster nagios monitoring for which no further new development is being undertaken.