We developed the Grafana-Plugin for IoTDB, using the IoTDB REST service to present time series data and providing many visualization methods for time series data. Compared with previous IoTDB-Grafana-Connector, current Grafana-Plugin performs more efficiently and supports more query types. So, we recommend using Grafana-Plugin instead of IoTDB-Grafana-Connector.

    Install Grafana

    Install Grafana-Plugin

    Execute the following command:

    Compile Grafana-Plugin

    Compile Method 1

    We need to compile the front-end project in the IoTDB directory and then generate the dist directory. The specific execution process is as follows.

    • Option 1 (compile with maven): execute following command in the grafana-plugin directory:
    1. mvn install package -P compile-grafana-plugin
    • Option 2 (compile with yarn): execute following command in the grafana-plugin directory:
    1. yarn install
    2. yarn build

    If compiling successful, you can see the dist directory , which contains the compiled Grafana-Plugin:

    Compile Method 2

    We can also obtain the front-end project of grafana-plugin and other IoTDB executable files by executing the package instruction of the IoTDB project.

    Execute following command in the IoTDB root directory:

    If compiling successful, you can see that the distribution/target directory contains the compiled Grafana-Plugin:

    Grafana Plugin - 图2

    Install Grafana-Plugin

    • Copy the front-end project target folder generated above to Grafana’s plugin directory ${Grafana directory}\data\plugins\.If there is no such directory, you can manually create it or start grafana and it will be created automatically. Of course, you can also modify the location of plugins. For details, please refer to the following instructions for modifying the location of Grafana’s plugin directory.

    • Modify Grafana configuration file: the file is in（${Grafana directory}\conf\defaults.ini）, and do the following modifications:

      1. allow_loading_unsigned_plugins = iotdb

    • Modify the location of Grafana’s plugin directory: the file is in（${Grafana directory}\conf\defaults.ini）, and do the following modifications:

      1. plugins = data/plugins

    • Start Grafana (restart if the Grafana service is already started) For more details，please click

    Start Grafana

    Start Grafana with the following command in the Grafana directory:

    • Windows:
    • Linux:
    1. sudo service grafana-server start
    • MacOS:
    1. brew services start grafana

    For more details，please click

    Configure IoTDB REST Service

    Access Grafana dashboard

    Grafana displays data in a web page dashboard. Please open your browser and visit http://<ip>:<port> when using it.

    • IP is the IP of the server where your Grafana is located, and Port is the running port of Grafana (default 3000).

    • The default login username and password are both .

    Add IoTDB as Data Source

    Click the Settings icon on the left, select the Data Source option, and then click Add data source.

    Grafana Plugin - 图6

    Select the Apache IoTDB data source.

    • Fill in http://<ip>:<port> in the URL field
      • ip is the host ip where your IoTDB server is located
      • port is the running port of the REST service (default 18080).
    • Enter the username and password of the IoTDB server

    Click Save & Test, and Success will appear.

    Create a new Panel

    Click the Dashboards icon on the left, and select Manage option.

    Grafana Plugin - 图8

    Click the New Dashboard icon on the top right, and select Add an empty panel option.

    Enter content in the SELECT, FROM , WHERE and CONTROL input box, where the WHERE and CONTROL input boxes are optional.

    If a query involves multiple expressions, we can click + on the right side of the SELECT input box to add expressions in the SELECT clause, or click + on the right side of the FROM input box to add a path prefix:

    Grafana Plugin - 图10

    Here are some examples of valid SELECT content:

    • s1
    • top_k(s1, 'k'='1') as top
    • sin(s1) + cos(s1 + s2)
    • udf(s1) as "alias"

    FROM input box: contents must be the prefix path of the time series, such as .

    WHERE input box: contents should be the filter condition of the query, such as time > 0 or s1 < 1024 and s2 > 1024.

    CONTROL input box: contents should be a special clause that controls the query type and output format.

    Here are some examples of valid CONTROL content:

    • group by ([2017-11-01T00:00:00, 2017-11-07T23:00:00), 1d)
    • group by ([2017-11-01 00:00:00, 2017-11-07 23:00:00), 3h, 1d)
    • GROUP BY([2017-11-07T23:50:00, 2017-11-07T23:59:00), 1m) FILL (PREVIOUSUNTILLAST)
    • GROUP BY([2017-11-07T23:50:00, 2017-11-07T23:59:00), 1m) FILL (PREVIOUS, 1m)
    • GROUP BY([2017-11-07T23:50:00, 2017-11-07T23:59:00), 1m) FILL (LINEAR, 5m, 5m)
    • group by ((2017-11-01T00:00:00, 2017-11-07T23:00:00], 1d), level=1
    • group by ([0, 20), 2ms, 3ms), level=1

    Tip: Statements like select * from root.xx.** are not recommended because those statements may cause OOM.

    Support for variables and template functions

    This plugin supports Grafana’s variables and templates () feature.

    After creating a new Panel, click the Settings button in the upper right corner:

    Select Variables, click Add variable:

    Grafana Plugin - 图12

    Enter Name, Label, and Query, and then click the Update button:

    Apply Variables, enter the variable in the grafana panel and click the save button:

    Grafana Plugin - 图14