7-Eleven, Inc. operates greater than 85,000 shops worldwide, serving thousands and thousands of consumers each day. Behind that scale sits an equally huge information platform, powering cell checkout, loyalty applications, on-demand supply, and AI-driven personalization.
By 2023, that platform was displaying pressure. Because the platform scaled, legacy architectural patterns, together with an exterior Hive metastore and workspace-level governance fashions, started to restrict visibility and consistency. Metadata was fragmented throughout environments, making information discovery tougher and decreasing belief. Compliance groups lacked a unified, account-level view of knowledge entry, whereas technical debt gathered as hundreds of jobs trusted hard-coded paths, RDDs, and DBFS mount factors. On the identical time, information sprawl throughout storage areas and legacy workspaces slowed modernization efforts.
The Enterprise Information Platform (EDP) staff at 7-Eleven knew that migrating to Unity Catalog would centralize entry management, simplify compliance, and allow a federated information structure. On this weblog, we’ll stroll by means of why we migrated to Unity Catalog, how UCX and system tables helped us reorient the migration, and the advantages we’re seeing now that we’ve standardized on UC.
You’ll be able to study extra about 7-Eleven’s migration to Unity Catalog by trying out their session at Information + AI Summit 2025.
Constructing a Future-Proof Information Governance Technique
For 7-Eleven, Unity Catalog was not nearly addressing governance gaps; it was about constructing a basis for the longer term. Centralized entry management, audit logging, lineage, and information discovery would simplify operations and enhance belief in information. A federated structure would enable enterprise domains to innovate independently whereas nonetheless aligning to enterprise requirements. Unity Catalog additionally promised to standardize enterprise metrics by means of a semantic layer, guaranteeing constant KPIs throughout analytics and reporting.
Nonetheless, 7-Eleven confronted what they referred to as a brownfield migration. Years of entrenched code patterns, hundreds of tables and notebooks, and jobs constructed round an exterior Hive metastore meant {that a} easy lift-and-shift wasn’t attainable. The staff wanted a structured approach to assess their property, remediate technical debt, and migrate with out disrupting day by day operations.
Steps to a seamless migration with UCX and system tables
7-Eleven turned to UCX, Databricks Labs’ open supply migration assistant, to switch handbook effort with structured workflows. UCX crawled their property, delivered a complete stock of tables, jobs, and permissions, and flagged blockers with a “readiness rating.” This visibility helped the staff give attention to what mattered most.
With system tables and lineage insights, the EDP staff prioritized high-value workflows whereas de-scoping ~40% of inactive or low-value legacy jobs. This “business-value-first” method saved the migration manageable and aligned with stakeholder priorities.
Key steps included:
- Id federation: Transferring from workspace-local to account-level teams, with UCX automating permission mapping, even throughout nested hierarchies.
- Medallion structure redesign: Remapping storage into bronze, silver, and gold layers throughout migration.
- Incremental migration with sync and reverse-sync: Permitting Hive and Unity Catalog to coexist throughout transition, minimizing downtime and danger.
This phased playbook of assess, plan, migrate, validate, and decommission reoriented the challenge from a frightening problem to a structured transformation.
Stronger governance, sooner innovation with Databricks Unity Catalog
With Unity Catalog in place, 7-Eleven has dramatically simplified governance and unlocked new enterprise capabilities. By eliminating greater than 40% of redundant workflows, the staff rationalized its information property and lowered operational overhead. Governance is now unified, with centralized audit logging, fine-grained safety, and lineage monitoring throughout all information and AI property. The platform staff manages one set of insurance policies as an alternative of many, enhancing each effectivity and safety.
However the advantages go properly past simplification. With a central catalog, customers throughout enterprise models can now uncover and belief information property, see how they join by means of lineage, and reuse them with confidence as an alternative of recreating reviews. Constructed-in auditability ensures the staff can reply questions like “who queried what” in minutes, not days, a crucial win for compliance.
Collaboration has additionally accelerated. Information scientists, analysts, and engineers now work from the identical ruled platform, sharing information seamlessly throughout domains. This consistency reduces errors, boosts productiveness, and frees groups to give attention to enterprise outcomes as an alternative of administrative overhead.
On high of those governance enhancements, Unity Catalog has unlocked new capabilities that gas enterprise innovation:
- Delta Sharing and Databricks Clear Rooms energy advertising optimization and safe information monetization.
- Serverless clusters eradicate handbook cluster administration.
- Self-service analytics with AI/BI Genie Areas and federated domains give enterprise groups direct entry to the insights they want.
Classes from 7-Eleven’s UC migration
7-Eleven’s UC migration is greater than a technical improve. It’s a cornerstone of their digital transformation: simplifying governance, enabling federation throughout enterprise models, and supporting innovation at scale.
Migrating to Unity Catalog was not a lift-and-shift challenge – it was a strategic reset. With UCX and system tables, we gained visibility, phased our migration, and lowered technical debt. At the moment, all of our information and AI property stay underneath a unified governance mannequin, giving us the belief and agility to scale AI throughout 7-Eleven. — Ganesh Susarla, Director, Structure and Governance, 7-Eleven
As a part of this journey, the Enterprise Information Platform staff uncovered a number of greatest practices that may information different enterprises tackling advanced migrations:
- Spend money on an intensive evaluation upfront: Utilizing UCX and system tables surfaced technical debt early and recognized low-value property to de-scope, shrinking the general migration footprint.
- Migrate identities and permissions first: Establishing account-level governance early created a clear basis that simplified each downstream step.
- Use the migration as a chance to modernize: The staff adopted a Medallion structure to scale back sprawl, standardize patterns, and eradicate long-standing technical debt.
- Section the work to attenuate disruption: Sync and reverse-sync allowed Hive and Unity Catalog to coexist throughout transition, guaranteeing day-to-day operations continued uninterrupted.
