What YugabyteDB migrations do you handle?

PostgreSQL → YugabyteDB via yb-voyager (the canonical migration path), Oracle → YugabyteDB (PL/SQL conversion + YSQL adoption), Cassandra → YCQL (consolidation for teams running both Postgres + Cassandra), self-managed → Yugabyte Aeon onboarding, tablespace + replica placement rollout for multi-region, version upgrades. For the architecture-decision phase, see YugabyteDB consulting .

yb-voyager — what does it cover?

yb-voyager is YugabyteDB's migration toolkit. Covers: assessment (source-DB compatibility report), schema export + conversion (Postgres / Oracle / MySQL / SQL Server source), bulk data import, live CDC replication, and cutover automation. Strengths: YSQL benefits from real Postgres query-layer reuse, so Postgres → YugabyteDB is unusually clean. Misses: complex PL/SQL packages (manual rewrite), Postgres-extension dependencies that aren't in YugabyteDB's supported list, advanced sequence semantics.

Postgres → YugabyteDB — what's the playbook?

Sequence: (1) yb-voyager assess for compatibility report, (2) schema export + manual review of incompatible features (CASCADE FK on distributed tables, sequence ordering, certain extensions), (3) initial data load via yb-voyager export-data + import-data, (4) live CDC replication for catching up writes, (5) cutover with replication-lag-monitored gates. The Postgres → YugabyteDB path is cleaner than Postgres → CockroachDB because YSQL reuses actual Postgres query layer.

Cassandra → YCQL — when does consolidation make sense?

When you run both Postgres + Cassandra and want one platform. YCQL implements much of Cassandra's CQL semantics on YugabyteDB's distributed storage. Pros: unified operational model, single-cluster auth and backup, smaller ops surface. Cons: not all Cassandra features port (LWT semantics differ, some advanced data types). We audit existing Cassandra usage to identify portable patterns + replacement strategies for the gaps.

Multi-region tablespace rollout — what's the process?

YugabyteDB's multi-region story is config-driven via tablespaces. Rollout: (1) provision additional regions, (2) define tablespaces with placement policies (region count, replica distribution, leader preference), (3) assign tables to tablespaces — typically one tablespace per data-residency requirement, (4) validate query latency per locality, (5) update application routing for region-local access. Per-table rollout rather than cluster-wide, similar to CockroachDB's multi-region tables.

Self-managed → Yugabyte Aeon — economics?

Yugabyte Aeon (formerly YugabyteDB Managed): Serverless or Dedicated, multi-cloud (AWS, Azure, GCP). Aeon wins for fast time-to-value, multi-cloud flexibility, small ops teams. Self-managed wins at sustained scale where reserved-instance economics beat Aeon pricing, or for regulatory placement requirements. The migration itself is straightforward — same engine, configuration + region differences. We model both before recommending direction.

Cutover playbook for zero-downtime?

Standard sequence: (1) yb-voyager assess + schema migration, (2) bulk-load via export-data + import-data, (3) CDC replicator catches up, (4) wait for replication lag to settle, (5) flip reads — observe error rate + latency, (6) quiesce writes on source briefly, (7) promote YugabyteDB, (8) cut application endpoints, (9) 24-48 hour soak with source kept replicated as rollback, (10) decommission source.

Sound familiar?

▸ Postgres → YugabyteDB — yb-voyager assessment ran but the team needs an honest scoping of the manual-rewrite portion before committing to a timeline.
▸ Cassandra + Postgres consolidation via YCQL+YSQL is appealing, but the LWT semantic gaps need validation before approving.
▸ Yugabyte Aeon vs self-managed — finance wants a defensible TCO comparison before signing the renewal.

JusDB YugabyteDB migration team delivers tested cutover runbooks with yb-voyager gates. Book a YugabyteDB migration scoping call →

Tested cutover playbooks with yb-voyager

YugabyteDB Migration Services

In short: A YugabyteDB migration moves PostgreSQL, Oracle, or Cassandra onto distributed SQL using the yb-voyager toolkit — assessment, schema export and conversion, bulk import, and live CDC replication — plus YCQL consolidation, multi-region tablespace rollout, and Yugabyte Aeon onboarding, all with replication-lag-monitored cutovers and rollback gates.

PostgreSQL / Oracle → YugabyteDB via yb-voyager, Cassandra → YCQL consolidation, self-managed → Yugabyte Aeon, multi-region tablespace rollout — with replication-lag-monitored cutovers and rollback gates. See YugabyteDB consulting for architecture decisions.

YugabyteDB migrations we handle

Each path has a tested runbook — yb-voyager-driven cutover, replication-lag gating, defined rollback procedure.

PostgreSQL → YugabyteDB

yb-voyager-driven migration with assess + export + import + live CDC. YSQL's actual-Postgres-query-layer reuse makes this cleaner than CockroachDB alternatives.

Oracle → YugabyteDB

PL/SQL conversion + YSQL adoption via yb-voyager. Less common but viable for distributed-SQL + Apache-2.0-licence requirements.

Cassandra → YCQL Consolidation

Cassandra workload consolidation to YugabyteDB's wide-column YCQL API. Compatibility audit + LWT semantic validation + cutover.

Multi-Region Rollout

Tablespace + replica placement policy design for data-residency requirements. Per-table rollout sequence with latency validation.

Self-Managed → Yugabyte Aeon

Aeon Serverless or Dedicated onboarding. Multi-cloud flexibility. Configuration migration + cutover sequence.

Version Upgrades

Cross-major YugabyteDB upgrades with rolling node deployment, compatibility validation, online schema-change behaviour testing.

YugabyteDB migration — common questions

Ready to plan the YugabyteDB migration?

Book a 30-minute scoping call. We'll review source topology, design the yb-voyager cutover sequence, and propose the engagement shape.

Related YugabyteDB Services

Explore more ways our YugabyteDB experts can help with your database infrastructure.

YugabyteDB Consulting

View all YugabyteDB services