Cloudera Docs

Tag Management and Search workflow

In Data Catalog, you can create a tag, assign the tag to an asset, and search for an asset using various filters.

You can create a tag and search for any asset using the tag. You can also apply a tag to a column. Later, you can search assets based on the Entity and Column filters.
  1. Data Catalog > Atlas Tags > Create a new tag
  2. Enter the name, description for the tag.
  3. Inserting classification to inherit attributes and adding new attributes are optional.
  4. Click Save.
    The new tag is created.

    Next, you must assign the newly created tag to one of the existing assets in Data Catalog.

    For example, we can assign the tag to the Hive table.

  5. Data Catalog > Search for a Hive asset > click on the asset to view the Asset Details page.
  6. Under the Manage Classification panel, click + to enable the tag list view.
  7. Select the tag that you newly created and assign the tag to the asset.
  8. Click Save.

    Next, you can add the tag to a column in the selected asset.

  9. Data Catalog > Search for a Hive asset > click on the asset to view the Asset Details page.
  10. Select the Schema tab and click Edit Tags.
  11. Click + and select the tag from the tag drop-down.
    The tag list contains System Tags and Managed Tags. Managed Tags are selected by default.
  12. Select a tag and click Save.
    Once tags are added to the table and column, you can search for the corresponding assets using the tag name.

    To search for the asset using the Entity filter:

  13. Data Catalog > Search > Enter the tag name in the Entity filter.
    The asset for which the tag was added is displayed in the search result.

    To search for the asset using the Column filter:

  14. Data Catalog > Search > Enter the tag name in the Column filter.
    The asset for whose column the tag was added is displayed in the search result.