Unity Catalog Migration (UCM) Assessment

Owned by Gary Nakanelua
Last updated: Oct 02, 2024 by Ciprian LUCACI
2 min read

 

https://youtu.be/24c58V5cZTM?si=W2enL_u9-u_n3ex-

Purpose:

This feature performs a comprehensive inventory of a workspace to aid in the migration process to Unity Catalog. It analyzes various workspace objects, including tables, databases, functions, users, groups, grants, notebooks, files, jobs, DLT pipelines, external locations, and clusters, providing valuable insights into the complexity and potential challenges of the migration.

Benefits:

  • Enhanced Understanding: Gain a clear understanding of the workspace's current state and the objects that require attention during migration.

  • Improved Planning: Make informed decisions about the migration strategy and resource allocation based on the inventory data.

  • Reduced Risk: Identify potential issues and dependencies early on, minimizing the risk of migration failures.

  • Increased Efficiency: Streamline the migration process by automating data collection and analysis.

Use Cases:

  • Pre-Migration Assessment: Evaluate the workspace's readiness for Unity Catalog migration and identify areas that need adjustments.

  • Migration Planning: Develop a detailed migration plan based on the inventory data and insights.

  • Post-Migration Validation: Verify the successful migration of all workspace objects and ensure data integrity.

Key Features:

  • Inventory of Workspace Objects:

    • Tables: Identifies managed, external, and tables requiring review, including details about location, owner, provider, and type.

    • Databases: Analyzes Hive databases, providing information about location, owner, comments, and potential table errors.

    • Functions: Inventories Hive functions, including class name, type, determinism, and version.

    • Users and Groups: Provides details on workspace users and groups, including entitlements and memberships.

    • Grants: Analyzes permission grants for tables within databases.

    • Notebooks and Files: Identifies notebooks and files within the workspace, excluding certain file types.

    • Jobs: Analyzes jobs and identifies the type of task (notebook, spark, python, etc.) and the object name associated with the task.

    • DLT Pipelines: Provides an overview of Delta Live Tables pipelines.

    • External Locations: Lists external locations used within the workspace.

    • Clusters: Provides information about cluster IDs, names, and Spark versions.

    • Models: Lists models in the model registry along with user and version information.

  • Recommendations: Offers actionable recommendations based on the assessment findings, including:

    • Upgrading cluster DBR versions

    • Addressing data in DBFS root

    • Migrating workspace permission grants

    • Evaluating workspace groups

    • Designing the Unity Catalog structure

    • Strategizing for external locations

    • Analyzing source code objects used in multiple jobs

Conclusion:

The Unity Catalog Migration Assessment feature in the Blueprint Lakehouse Optimizer provides valuable insights and automation capabilities to facilitate a smooth and successful migration to Unity Catalog. By leveraging its comprehensive analysis and actionable recommendations, organizations can confidently navigate the complexities of migration and ensure a seamless transition to a more secure and governed data lakehouse environment.