--- title: Configure the Timeseries DB slug: litmusedge/product-features/datahub/configure-the-timeseries-db description: Learn more about configuring the DataHub timeseries database. docTags: createdAt: 2023-05-04T14:25:54.000Z --- You can configure the timeseries database in Litmus Edge by navigating to **DataHub **>** Configuration**. # Video :::Iframe{iframeHeight="0" code=""} ::: :::hint{type="info"} **Limitation**: When using DataHub for storing data polled from connected devices, it's important to note the following limitations: - InfluxDB initialization for large databases takes a long time with high CPU utilization. Ensure the Litmus Edge device has sufficient computing resources. - DataHub does not store custom-formatted driver output like JSON or arrays to ensure efficient NoSQL timeseries database handling. - DataHub handles string values differently than integers. As a result, when querying stored data, the way string and integer values are handled can impact the structure and results of your query. Sample Influx Query: - **For String Values: **`SELECT "value_str" FROM "temperature_readings" WHERE ("value_str"::field = 'pressure') AND $timeFilter` - **For Integer Values:** `SELECT "value" FROM "temperature_readings" WHERE ("value"::field = 555) AND $timeFilter` ::: You have the option of configuring an internal or external InfluxDB timeseries database. DataHub's Configuration module offers the following functionalities: - Toggle the Timeseries DB - Select and Customize Timeseries DB Source type - Test Timeseries DB ## Toggle the Timeseries DB You can enable or disable the Timeseries DB by using the **Timeseries DB disabled** or **Timeseries DB enabled** toggle. ![](https://api.archbee.com/api/optimize/SSUUxKZUk9bFTEPNn_6Zo/xc3BjqUGm6gHJZj5g-AaG_image.png "Timeseries DB toggle") ## Select and Customize Timeseries DB Source Type You can change the Timeseries DB source type by using the Source type drop-down list and selecting internal or external. :::hint{type="info"} **Important Notes**: - If you select internal, make sure to select the *Enable Data Store* option for the device you want to store data for. See [Enable Data Store](docId\:pal6ABPZbrimdU9LvGJ30) to learn more. - In version 3.16.x and earlier, create a bucket called `tsdata` to *Enable Data Store* in DeviceHub. - You may need to upgrade your Litmus Edge version (3.16.x) if the database creation feature is not implemented immediately. ::: ![](https://api.archbee.com/api/optimize/SSUUxKZUk9bFTEPNn_6Zo/3CNZ9KY98h1kjp0GdDm6r_image.png "Source type drop-down list") If you select *external *enter the following details: - **DB uri**: The IP address and port of the externally deployed InfluxDB database. If the InfluxDB database is deployed on the same device as Litmus Edge, enter http\://localhost:8086. - **DB username**: Enter the Influx DB v1.x username. - **DB password**: Enter the Influx DB v1.x password. - **Auth token**: Copy the token for the InfluxDB 2.x database. You can access the database from a browser window and navigate to **Data **> **Tokens**. - **Organization name**: Enter the InfluxDB 2.x organization name configured for the database. - **DB vendor**: The available vendors are - InfluxDB v1.x - InfluxDB v2.x - **Description **(Optional): Enter a description for the externally deployed InfluxDB. - **Name**: Enter a name for the externally deployed InfluxDB. If you select *internal*, no further configurations are required. ## Test the Timeseries DB You can test the connectivity of the Timeseries DB by clicking **Test**. ![](https://api.archbee.com/api/optimize/SSUUxKZUk9bFTEPNn_6Zo/A4VU-0lQCBgXy9TxW4bgQ_image.png "The test Timeseries DB button") The connected status and response message displays.