InfluxDB data source
InfluxDB is an open-source time series database (TSDB) developed by InfluxData. It is optimized for fast, high-availability storage and retrieval of time series data in fields such as operations monitoring, application metrics, IoT sensor data, and real-time analytics.
This topic explains options, variables, querying, and other options specific to this data source. Refer to Add a data source for instructions on how to add a data source to Grafana. Only users with the organization admin role can add data sources.
Data source options
To access data source settings, hover your mouse over the Configuration (gear) icon, then click Data sources, and then click the data source.
InfluxDB data source options differ depending on which query language you select: InfluxQL or Flux.
Note: Though not required, it’s a good practice to append the language choice to the data source name. For example:
InfluxQL (classic InfluxDB query)
These options apply if you are using the InfluxQL query language. If you are using Flux, refer to Flux support in Grafana.
||The data source name. This is how you refer to the data source in panels and queries. We recommend something like
||Default data source means that it will be pre-selected for new panels.|
||The HTTP protocol, IP address and port of your InfluxDB API. InfluxDB API port is by default 8086.|
||Server (default) = URL needs to be accessible from the Grafana backend/server, Browser = URL needs to be accessible from the browser. Note: Browser (direct) access is deprecated and will be removed in a future release.|
||Cookies that will be forwarded to the data source. All other cookies will be deleted.|
||The ID of the bucket you want to query from, copied from the Buckets page of the InfluxDB UI.|
||The username you use to sign into InfluxDB.|
||The token you use to query the bucket above, copied from the Tokens page of the InfluxDB UI.|
||How to query the database (
||(Optional) Refer to Min time interval.|
||(Optional) Limits the number of series/tables that Grafana processes. Lower this number to prevent abuse, and increase it if you have lots of small time series and not all are shown. Defaults to 1000.|
For information on data source settings and using Flux in Grafana, refer to Flux support in Grafana.
Min time interval
A lower limit for the auto group by time interval. Recommended to be set to write frequency, for example
1m if your data is written every minute.
This option can also be overridden/configured in a dashboard panel under data source options. It’s important to note that this value must be formatted as a number followed by a valid time identifier, e.g.
1m (1 minute) or
30s (30 seconds). The following time identifiers are supported:
You can query InfluxDB using InfluxQL or Flux:
- InfluxQL is a SQL-like language for querying InfluxDB, with statements such as SELECT, FROM, WHERE, and GROUP BY that are familiar to SQL users. InfluxQL is available in InfluxDB 1.0 onwards.
InfluxQL query editor
Enter edit mode by clicking the panel title and clicking Edit. The editor allows you to select metrics and tags.
Filter data (WHERE)
To add a tag filter, click the plus icon to the right of the
WHERE condition. You can remove tag filters by clicking on the tag key and then selecting
--remove tag filter--.
You can type in regex patterns for metric names or tag filter values. Be sure to wrap the regex pattern in forward slashes (
/). Grafana automatically adjusts the filter tag condition to use the InfluxDB regex match condition operator (
Field and Aggregation functions
SELECT row you can specify what fields and functions you want to use. If you have a
group by time you need an aggregation function. Some functions like derivative require an aggregation function. The editor tries to simplify and unify this part of the query. For example:
The above generates the following InfluxDB
SELECT derivative(mean("value"), 10s) /10 AS "REQ/s" FROM ....
Select multiple fields
Use the plus button and select Field > field to add another SELECT clause. You can also
specify an asterix
* to select all fields.
To group by a tag, click the plus icon at the end of the GROUP BY row. Pick a tag from the dropdown that appears.
You can remove the “Group By” by clicking on the
tag and then click on the x icon.
Text Editor Mode (RAW)
You can switch to raw query mode by clicking hamburger icon and then
Switch editor mode.
If you use Raw Query be sure your query at minimum have
WHERE $timeFilter. Also, always have a group by time and an aggregation function, otherwise InfluxDB can easily return hundreds of thousands of data points that will hang the browser.
- $m = replaced with measurement name
- $measurement = replaced with measurement name
- $1 - $9 = replaced with part of measurement name (if you separate your measurement name with dots)
- $col = replaced with column name
- $tag_exampletag = replaced with the value of the
exampletagtag. The syntax is
$tag*yourTagName(must start with
$tag*). To use your tag as an alias in the ALIAS BY field then the tag must be used to group by in the query.
- You can also use [[tag_hostname]] pattern replacement syntax. For example, in the ALIAS BY field using this text
Host: [[tag_hostname]]would substitute in the
hostnametag value for each legend value and an example legend value would be:
The Logs Explorer (the
Measurements/Fields button) next to the query field shows a list of measurements and fields. Choose the desired measurement that contains your log data and then choose which field Explore should use to display the log message.
Once the result is returned, the log panel shows a list of log rows and a bar chart where the x-axis shows the time and the y-axis shows the frequency/count.
To add a filter, click the plus icon to the right of the
Measurements/Fields button or a condition. You can remove tag filters by clicking on the first select and choosing
Annotations allows you to overlay rich event information on top of graphs. Add annotation queries using the Annotations view in the Dashboard menu.
An example query:
SELECT title, description from events WHERE $timeFilter ORDER BY time ASC
For InfluxDB, you need to enter a query like the one in the example above. The
where $timeFilter component is required. If you only select one column, then you do not need to enter anything in the column mapping fields. The Tags field can be a comma-separated string.
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