I did understand that Top-Hits always shows the latest value. In my visualization it jumps from Zero Values to real values every 2-3 refreshs, and i cannot figure out why.
Here is the setting:
Running Elastic and Metricbeat on V 6.4.2
nobody a clue?
You can at first check to see if the refresh set on your dashboard is > the shipping interval for disk statistics in Metricbeat.
Can you show how the visualization is built? Maybe we can achieve something similar to this using a different metric/aggregation.
you might be hitting some of the device_names that have no free space reported for. Could you try and recreate the same thing in the normal Data Table instead of the TSVB Data Table?
I tried something like that and there are devices for which there is Data and there are a lot that don't have any data, like /dev/loopX.
No Marius, please check the first post i made.
The visualization jumps from 0 values to the correct values every 1-3 refreshs.
My original question was: Shouldn't the Top-Hit always be the highest amount reported, thus never resulting in a zero value if there has been a non-zero value reported in the given timerange.
it shows the top hit in that bucket, not overall, so that it's why it will show 0 for some of them when you don't have any events for that drive_name in the interval of the bucket.
ok, i try with a normal data table. Let's see if this works.
Thanks for your guidance though 
That works perfect, thanks Marius!