Skip to main content

How to perform root cause analysis

info

In this guide we're going to learn how to perform root cause analysis. You should have configured a data source, data set, and created an alert

In this guide we're going to learn how to perform root cause analysis.

Find anomalies

First we're going to find an anomaly to investigate.

tip

If you received an anomaly email you can skip to the anomaly chart section of this guide.

Click on the tab on the left menu to view all anomalies. You should see the following screen:

Select an anomaly by clicking on the anomaly in the Name column. You should then see the following screen:

An anomalyAn anomaly

At the top of the screen is a calendar control that we can use to control the date range shown on the screen. Below that is a summary of the anomaly and below that is as chart showing how values have varied over time. Finally we have a heatmap at the bottom of the screen that allows us to drill down into the data based on various properties.

Anomaly chart

Let's have a look at how to use the anomaly chart. The animation below shows how to use the various controls:

Investigating the anomaly chartInvestigating the anomaly chart

You can update the chart to include add or remove anomalies, upper and lower bounds, as well as the values themselves. You can also zoom in to specific parts of the chart to do further investigation, as shown in the animation below:

Investigating the anomaly chartInvestigating the anomaly chart

Heatmap

Next let's have a look at how to use the heatmap. The heatmap shows how the data has changed compared to the same period seven days ago. You can then drill down by each property to see the current value and the percentage change, as shown in the animation below.

Investigating the heatmapInvestigating the heatmap

In this example there's been a slight decrease for desktop users using Safari that live in China. Our next step might then be to figure out what's changed for those users that hasn't for users that don't fit in that cohort.