Data Hub Module

Performance Improvements

This release of Spectrum™ Technology Platform includes Data Hub model read and write performance improvements.

Visual Query Builder

The Data Hub Module Visualization Web client now provides the Visual Query Builder, a canvas-based tool for designing and building Data Hub queries. The Visual Query Builder allows you to create your query as a pattern that mirrors the entity types and relationships of the model that you want to query. The capabilities to filter entities and relationships by property are presented in a panel, which in combination with the pattern, make up the query.

Administration Utility Commands

The Administration Utility now includes 12 Data Hub commands:
  • hub backup all—Backs up all Data Hub models.
  • hub backup delete—Deletes the backup of a specific Data Hub model.
  • hub backup list—Returns a list of all Data Hub models that have been backed up to a particular folder
  • hub backup model—Backs up a specific Data Hub model.
  • hub backup restore—Restores a backed-up Data Hub model.
  • hub model clear—Removes the contents of a Data Hub model but leave it and its metadata in place.
  • hub model copy—Copies the contents of a Data Hub model, including monitors and queries, to a new model.
  • hub model delete—Deletes a specific Data Hub model.
  • hub model list—Returns a list of all Data Hub models as well as counts for entities and relationships for each model.
  • hub schema copy—Copies a Data Hub model's metadata, monitors, and queries.
  • hub schema export—Exports a Data Hub model's metadata, monitors, and queries.
  • hub schema import—Imports a Data Hub model's metadata, monitors, and queries.

Entity Decorations

Data Hub Visualization allows you to use the new Custom image URI field to assign an .svg, .png, or .jpg file located at an external URI as the default graphic for a selected entity type.

Similarly, you can use the new Use custom image property option to override default decoration with a custom image for a specific entity.

Widget Timeout

The new Dashboard widget timeout option in Data Hub Visualization allows you to set a limit, in seconds, of how long a widget can run before it times out and stops processing. Long-running widget operations will continue running in the background; you will be notified when those operations complete if you leave the dashboard.

Fuzzy Search & _stp Field Index Options Deprecation

Due to improvements in performance while running concurrent reads from and writes to a model, you can no longer use a fuzzy search when executing a query in any Data Hub client or web application. Additionally, you also will no longer be able to modify index options for _stp fields; these properties will always be indexed exactly as they are entered.