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Migrating to Talend Dictionary Service 8.0.x R2022-07 or later installed with an external MongoDB

Before you begin

You have downloaded the latest hybrid Talend Dictionary Service 8.0 archive from Talend Cloud's Downloads page.

Procedure

  1. Open Talend Data Inventory, Talend Data Preparation or Talend Data Stewardship.
  2. Go to the Semantic types tab.
  3. Export the semantic types you want to keep.
    Information noteImportant: Exporting and reimporting your semantic types is critical to avoid losing existing semantic types.
  4. Stop your instance of the previous version of Talend Dictionary Service but keep MongoDB running.
  5. Backup your MongoDB, while it is still running, using the following command: mongodump -h <source_mongodb_host>:<source_mongo_port> -d <source_database> -u <source_mongodb_user> -p <source_mongodb_password> -o <dump_output>

    Example

    mongodump -h localhost:27017 -d dqdict -u dqdict-user -p duser -o dump\
  6. Stop your MongoDB instance.
  7. Install MongoDB 4.4 and start it.
    Talend Dictionary Service 8.0 uses the 4.4 version of MongoDB.
  8. Install Talend Dictionary Service 8.0 with the external MongoDB, and configure it with the same settings as your instance of the previous version of Talend Dictionary Service which points to MongoDB 4.4.
    For more information about the Talend Dictionary Service installation and configuration procedures, see Installing and configuring Talend Dictionary Service.
  9. If you have performed any custom configuration to the previous version of the data-quality.properties file, update the 8.0 version of the file by coping the values from the old configuration file. You can then change parameters needed for Talend Cloud and Talend Management Console.
  10. Open Talend Data Inventory, Talend Data Preparation or Talend Data Stewardship.
  11. Go to the Semantic types tab.
  12. Import the previously exported semantic types.

Results

You have migrated your data to Talend Dictionary Service 8.0. To configure Talend Dictionary Service, follow the instructions in Configuring Talend Dictionary Service.

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