Issue with Missing Data Points in Grafana Chart

  • What Grafana version and what operating system are you using?
    I’m using free web version.

Hello,
I am currently using the free web version of Grafana, and my setup includes InfluxDB as the data source. I am utilizing Telegraf CLI on several devices to collect logs and HTTP requests. My goal is to chart the rate of change over time for each source (device).

I have a query that works well for retrieving the data:

This one seems to work well:

SELECT 
    rate, 
    time, 
    host
FROM opridb
ORDER BY time ASC

However, I am encountering an issue where the yellow line in the chart sometimes skips a point. When I refresh the page, the missing point reappears along with the next data point. Since logs are sent every 60 seconds, it seems like one data point is occasionally missed, and then both are displayed upon refresh.

I suspect this might be a timing issue, but I’m not sure how to resolve it.

Questions:

  1. Has anyone else experienced similar issues with missing data points in Grafana?
  2. Are there any recommended solutions or best practices to ensure that all data points are consistently displayed in the chart?
  3. Is there a way to adjust the query or the Grafana settings to handle this more effectively?

Thank you for your help!

Did you configure refreshing to some fixed value? I.e. 30s?