The most common problems are related to the query & response from you data source. Even if it looks
The most common problems are related to the query & response from you data source. Even if it looks
like a bug or visualization issue in Grafana it is 99% of time a problem with the data source query or
like a bug or visualization issue in Grafana it is 99% of time a problem with the data source query or
the data source response.
the data source response.
To check this you should use Query Inspector. Query Inspector shows query requests and responses.
To check this you should use Query Inspector (new in Grafana v4.5). The query Inspector shows query requests and responses.
![](/img/docs/v45/query_inspector.png)
A guide on how to use it you can find [here](https://community.grafana.com/t/using-grafanas-query-inspector-to-troubleshoot-issues/2630).
<!---So make sure to check the query sent and the raw response, learn how in this guide: [How to troubleshoot metric query issues](https://community.grafana.com/t/how-to-troubleshoot-metric-query-issues/50)--->
For more on the query insector read [this guide here](https://community.grafana.com/t/using-grafanas-query-inspector-to-troubleshoot-issues/2630). For
older versions of Grafana read the [how troubleshoot metric query issue](https://community.grafana.com/t/how-to-troubleshoot-metric-query-issues/50/2) article.