Histogram Lose Data

Grafana
1

Hi,when i use histogram to show disk usedpercent,the panel lose one data.

my env:

  • grafana 4.4.1 with mysql 5.5
  • opentsdb 2.3

I use tcollector collect 12 servers(ip :192.168.10.172-183) disk usedpercent on mount point /data[1-12].and use histogram show the percent count

  • the metric like that:

os.df.bytes.percentused 67 mount=/data1 endpoint=192.168.10.173
os.df.bytes.percentused 78 mount=/data2 endpoint=192.168.10.173

  • this is my panel config

image.png983×212 15.9 KB

image.png759×196 9.31 KB

2
  • that is my panel:

image.png814×374 19.3 KB

you can see the count is 1,3,3,4，and there is only 11 host data.The legend show 11 IP and 1 count。In the legend,I fond lose one server data(192.168.10.176)

3
  • when I change histogram to series

  • the panel show that:

image.png1546×345 23 KB

the data of 192.168.10.176 show 68 and it’s in the first line of legend,just like the histogram mode “count”

it that the reson histogram lose data?

4

looks like a bug, opened an issue for this: https://github.com/grafana/grafana/issues/8886