Troubleshoot dashboards

• Sometimes the series names can be very large. This causes larger response sizes. Try using alias to reduce the size of the returned series names.
• Are you querying many time-series or for a long range of time? Both of these can cause Grafana or your data source to pull in a lot of data, which may slow it down.
• It could be high load on your network infrastructure. If the slowness isn’t consistent, this may be the problem.

Dashboard refresh rate issues

By default, Grafana queries your data source every 30 seconds. Setting a low refresh rate on your dashboards puts unnecessary stress on the backend. In many cases, querying this frequently makes no sense, because the data isn’t being sent to the system such that changes would be seen.

We recommend the following:

• If it is required, then set the refresh rate to once a minute. Again, users can always refresh the dashboard manually.
• If your dashboard has a longer time period (such as a week), then you really don’t need automated refreshing.

In the picture below we have enabled:

• Points and 3-point radius to highlight where data points are actually present.

In this graph, we set graph to show bars instead of lines and set the Null value to graph null as zero. There is a very big different in the visuals.