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Legacy TDengine Data Source

Legacy TDengine type of data source is to extract data from the edge side TDengine Cloud to the currently selected TDengine Cloud instance through query.

Prerequisites

  • The TDengine server version on the edge side must be version 2.6.
  • The server has port 6030 open and allows any IP access.
  • The user needs to create the corresponding topic inside the TDengine of the data source, which can be one or more databases, or super or normal tables.

Procedure

  1. In TDengine Cloud, open Data In page and on the Data Sources tab, click Add Data Source to open the page. In the Name field, input the name and select the TDengine Subscription type.
  2. In the Target DB field, select a database in the current TDengine Cloud instance as the target database.
  3. in the Host field, configure the IP or domain name of the remote edge side or the other TDengine Cloud instance URL.
  4. Configure the port number for the connection in the Port field, the default value is empty.
  5. in the Database field, configure the name of the database in the edge side TDengine.
  6. in the Protocol part, configure the connection protocol, the default is Native Connection, can be configured as WS, WSS.
  7. In the Migrate Options part, configure the migration mode in the Mode field, you can choose to migrate historical data (history), real-time data (real-time) or both; in the Schema field, configure whether or not to migrate the table structure, you can choose to always migrate (always), not to migrate (none) or to migrate only new (only). you can choose to always migrate (always), not migrate (none), or only migrate new (only).
  8. In the STables part, you can configure one or more super tables; in the Tables field, you can configure sub-tables and normal tables individually, and support table names in the form of tb1 or sub-table names in the form of stable.table. If not configured, all the sub-table data under the configured super-table will be migrated.
  9. Configure the start time of the migrated data in the Start field, then configure the end time of the migrated data in the End field, and finally configure the basic unit of the queried data in the Unit field, and the query for a long time range will be cut into multiple queries based on this. You can set 0s, 5s, 1m, etc., and support units ms (milliseconds), s (seconds), m (minutes), h (hours), d (days), M (months), y (years). 10.
  10. The configuration in the Realtime Settings field is valid only when the migration Mode is set to real time synchronization (realtime) mode. In the Retrospection field, you can set the retrospection time, which can be set to 5s, 10m, and so on. In the Interval field, you can set the actual time of the interval, you can set 5s, 10m, and so on. You can set the time to wait for the query after the disordered data is put into the database in the Excursion field, and you can set 500ms, 10s, etc. These three columns can support the unit ms (milliseconds), s (seconds), m (minutes), h (hours), d (days), M (months).
  11. In the Authentication column, you can configure the user name and password for accessing the TDengine server on the remote edge side, the default value of the user name is root and the default value of the password is taosdata.
  12. After completing the above information, click the Add button to directly start the data synchronization from the old version of TDengine to the TDengine Cloud instance.