Heatmap plugin applies a color for Z-axis - for example, from white to red or through green-yellow-red gradient. Z-axis is for number of observed values for this moment.Y-axis is for allowed values of something being measured.Now, let’s dive into Heatmap graphs, Prometheus and discrete status… A bit of theoryĬlassical heatmap is a 3-dimensional graph: manual color mapping, so you can specify a color to each numeric value from a discrete set.5 px) which can be specified - otherwise (if it’s too small), it may be difficult to use rows or buckets should be displayed having a minimal width (i.e.one object can have different statuses - in this case, the major (most significant) status should be visible as a color and all others are still available via tooltip.object’s name should be displayed on Y-axis and specified in legend field.dedicated, easily visible row of graph for every object.Status By Group Panel is a great enhancement over Status panel plugin which is able to display multiple statuses but it still lacks what we need.Īs a result of all this work, we’ve got the following requirements for a plugin:.Discrete Panel is great but we need to display status discretely over time.Carpet plot which groups values into buckets by day and by selected fragment of the day.Then we have tried the following Grafana plugins: We’ve tried to adjust Heatmap plugin but it’s been a failure: on Y-axis, it can work with values only and it can’t display labels there. as soon as you get null as a value, graphs fall in.Due to this, we have different colors for two graphs and it’s really confusing it uses different colors for different timeseries instead of values which are mapped into colors in Status Dot or Status Panel.However, stacked graph was not clear enough: It seemed that Status Panel and stacked graph would allow us to see objects’ status for now as well as continuing in time. hosts or pods… or coffee machines from all over the world. These plugins allow you to show current state for a set of objects, e.g. Like many others, we have started from a few dashboards with Status Panel & Status Dot plugins in use. If you dig a bit, it’s easy to see this problem is quite popular, and we are not the very pioneers here. You might wonder whether it’s a NIH syndrome: has nobody else dealed with the same problem before? Okay, let’s see. Because we love Open Source and we can see vast possibilities where applying of this plugin may bring huge benefits. That’s why Flant has created new Grafana plugin and we are here to share it with a wide community. Here are few examples of how we can take an advantage of such visualization in our business (we are deploying and maintaining a lot of Kubernetes clusters): Timeseries values should be easily (with no sophisticated workarounds applied) mapped into text and color. This set may be composed of a variety of timeseries, they may differ in labels and names. To make our data visualization better, we had a simple task - to show a set of timeseries statuses over time period. Here we can see that Nicki saves energy, Gerry is fast on water refill, Valera’s coffee maker is not doing well, and Bifrost lobby has better Wi-Fi than Moon station where water is quite a rare substance.ĭoes it look promising? Let’s start from the very beginning though - how we have come to this necessity at all… Why?
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