Unity Catalog Migration Kit

$69

Step-by-step migration toolkit from Hive Metastore to Unity Catalog. Assessment scripts, automated migration, validation tests, and rollback procedures.

📁 14 files🏷 v1.0.0

Production-ready

✓ Instant download✓ Lifetime updates✓ MIT licensed✓ MIT license✓ Secure checkout (Stripe)

📋 What's Inside 14 files

✓ README.md— Product overview and quick start guide
✓ notebooks/pre_migration_assessment.py— Scans Hive Metastore and generates comprehensive assessment report
✓ notebooks/automated_table_migration.py— Migrates tables from Hive to Unity Catalog using CTAS with validation
✓ notebooks/permission_mapper.py— Maps Hive permissions to Unity Catalog grants
✓ notebooks/post_migration_validation.py— Validates migration integrity with row counts, schema comparison, and data sampling
✓ terraform/unity-catalog-setup/main.tf— Unity Catalog metastore, catalogs, schemas, and external locations
✓ terraform/unity-catalog-setup/variables.tf— Configurable variables for the Terraform module
✓ terraform/unity-catalog-setup/outputs.tf— Terraform outputs for downstream consumption
✓ tools/migration_planner.py— Generates migration waves from assessment output
✓ tools/timeline_estimator.py— Estimates migration timeline based on table count and data volume
✓ guides/migration_guide.md— Step-by-step migration guide
✓ guides/day2_operations.md— Post-migration Unity Catalog operations guide
✓ guides/rollback_procedures.md— Rollback procedures for each migration stage
✓ templates/migration_planning_spreadsheet.csv— CSV template for migration wave planning

📁 File Structure 14 files

unity-catalog-migration-kit/
├── README.md
├── notebooks/
│ ├── pre_migration_assessment.py
│ ├── automated_table_migration.py
│ ├── permission_mapper.py
│ ├── post_migration_validation.py
├── terraform/
│ ├── unity-catalog-setup/
│ │ ├── main.tf
│ │ ├── variables.tf
│ │ ├── outputs.tf
├── tools/
│ ├── migration_planner.py
│ ├── timeline_estimator.py
├── guides/
│ ├── migration_guide.md
│ ├── day2_operations.md
│ ├── rollback_procedures.md
├── templates/
│ ├── migration_planning_spreadsheet.csv

📖 Documentation Preview README excerpt

Unity Catalog Migration Kit

By [Datanest Digital](https://datanest.dev) | Version 1.0.0 | $69

A comprehensive, production-ready toolkit for migrating from Databricks Hive Metastore to Unity Catalog. Includes automated assessment, migration notebooks, Terraform infrastructure-as-code, planning tools, and operational guides.

---

What's Included

Databricks Notebooks

Notebook	Purpose
`pre_migration_assessment.py`	Scans Hive Metastore, catalogs all databases/tables/views/permissions, generates assessment report
`automated_table_migration.py`	Migrates tables from Hive to Unity Catalog using CTAS with full validation
`permission_mapper.py`	Maps legacy Hive permissions to Unity Catalog grants
`post_migration_validation.py`	Validates migration integrity: row counts, schema comparison, data sampling

Terraform Module

File	Purpose
`unity-catalog-setup/main.tf`	Full Unity Catalog metastore, catalogs, schemas, external locations
`unity-catalog-setup/variables.tf`	Configurable variables for all resources
`unity-catalog-setup/outputs.tf`	Outputs for downstream consumption

CLI Tools

Tool	Purpose
`migration_planner.py`	Generates migration waves from assessment output
`timeline_estimator.py`	Estimates migration timeline based on table count and data volume

Guides

Guide	Purpose
`migration_guide.md`	Step-by-step migration walkthrough
`day2_operations.md`	Post-migration Unity Catalog operations
`rollback_procedures.md`	Rollback procedures for each migration stage

Templates

Template	Purpose
`migration_planning_spreadsheet.csv`	CSV template for migration wave planning

---

Quick Start

1. Run the Pre-Migration Assessment

Import notebooks/pre_migration_assessment.py into your Databricks workspace and run it. This produces a JSON assessment report cataloging every database, table, view, and permission in your Hive Metastore.

2. Plan Migration Waves

Use the CLI planner to generate migration waves from the assessment:


python tools/migration_planner.py \
  --assessment-file assessment_report.json \
  --max-tables-per-wave 50 \
  --output waves.json

... preview truncated, see full README in product download.

`📄 Code Sample .py preview`

notebooks/pre_migration_assessment.py# Databricks notebook source
# MAGIC %md
# MAGIC # Pre-Migration Assessment
# MAGIC **Unity Catalog Migration Kit — Datanest Digital**
# MAGIC
# MAGIC Scans the Hive Metastore and generates a comprehensive assessment report covering:
# MAGIC - All databases, tables, views, and functions
# MAGIC - Table formats, sizes, partitioning, and storage locations
# MAGIC - Existing permissions and ownership
# MAGIC - Migration complexity scoring
# MAGIC
# MAGIC **Usage:** Run all cells. The assessment report is saved as JSON to the configured output path.

# COMMAND ----------

# MAGIC %md
# MAGIC ## Configuration

# COMMAND ----------

# Widget parameters for notebook configuration
dbutils.widgets.text("output_path", "/tmp/unity_catalog_migration/assessment", "Assessment Output Path")
dbutils.widgets.dropdown("include_data_profiling", "true", ["true", "false"], "Include Data Profiling")
dbutils.widgets.text("exclude_databases", "default,information_schema", "Databases to Exclude (comma-separated)")
dbutils.widgets.text("assessment_tag", "initial", "Assessment Tag/Label")

output_path: str = dbutils.widgets.get("output_path")
include_data_profiling: bool = dbutils.widgets.get("include_data_profiling") == "true"
exclude_databases: list = [db.strip() for db in dbutils.widgets.get("exclude_databases").split(",") if db.strip()]
assessment_tag: str = dbutils.widgets.get("assessment_tag")

print(f"Output path:          {output_path}")
print(f"Data profiling:       {include_data_profiling}")
print(f"Excluded databases:   {exclude_databases}")
print(f"Assessment tag:       {assessment_tag}")

# COMMAND ----------

# MAGIC %md
# MAGIC ## Imports and Setup

`📅 Changelog`

v1.0.0 — Initial release.

Purchases include lifetime updates. Check the product page for the latest version.

`📄 Product Preview`

Try the interactive reader and demo tools below, or get the full product with all content unlocked.

📖 Interactive Reader (Free Preview)⚙ Try Demo Tools📦 Download Free Sample

`❓ Frequently Asked Questions`

What license is this under?

MIT License. You can use it in commercial, client, and internal projects. See our license terms page for details.

How do I download after purchase?

Immediately after purchase, you'll be redirected to a download page. A download link is also sent to your email.

Do I get updates?

Yes. All products include lifetime updates at no extra cost. Re-download anytime for the latest version.

What if it doesn't work for me?

DM @DatanestDigital on X and we'll make it right.

Can I get a refund?

DM @DatanestDigital on X with your order number and we'll help.

Is there support?

DM @DatanestDigital on X. We respond within 1-2 business days.



      
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