
AWS Database Migration Service enables minimal-downtime migration of PostgreSQL databases from Google Cloud Platform to Amazon RDS using pglogical extension for change data capture and parallel loading for large tables.


<div><p>This article provides a step-by-step guide for migrating PostgreSQL databases from Google Cloud Platform Cloud SQL to Amazon RDS using AWS Database Migration Service (DMS) with minimal downtime.</p><ul><li>Configure pglogical extension and create replication user on source GCP Cloud SQL database</li><li>Export schema metadata using pg_dump and import into target Amazon RDS instance</li><li>Create AWS DMS replication instance, secure endpoints, and migration tasks</li><li>Use two parallel migration tasks: one for small tables, one for large tables with parallel load</li><li>Disable triggers during initial load and CDC phases using session_replication_role parameter</li><li>Monitor migration progress via CloudWatch metrics and table statistics</li><li>Perform cutover after data synchronization and validation complete</li></ul><p>AWS DMS enables efficient PostgreSQL migration across cloud platforms with full data load, validation, and continuous change capture capabilities.</p></div>


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