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Percona Link for MongoDB 0.5.0 (2025-06-04)

We are pleased to announce the Minimum Viable Product (MVP) release of Percona Link for MongoDB (PLM). This new powerful and open-source tool addresses one of the challenging tasks DBAs have: migration of mission-critical MongoDB deployments with minimized downtime and ensured data consistency. Percona Link for MongoDB aims to simplify this process, being a solution for zero-downtime data migration and real-time replication between MongoDB deployments that are either Percona Server for MongoDB instances, MongoDB Community/Advanced versions, or even cloud-based Atlas clusters.

This release focuses on core capabilities providing a solid foundation for your migration needs. We’re counting on your expertise and feedback to help us shape its future.

What’s in this release?

This release features the following core capabilities:

  • Data clone: Full data copy with parallel processing and batch operations
  • Real-time replication: PLM uses change streams to capture and replicate data changes in real-time, keeping your target synchronized with the source
  • Guaranteed event ordering and consistency: PLM applies changes to the target in the same order they occurred on the source, maintaining data integrity.
  • Data and index integrity: Support for all index types, including TTL.
  • Transaction support: Basic handling for multi-document transactions.
  • Standardized secure connections via standard MongoDB connection strings with SASL authentication for secure communication.
  • Broad compatibility: Support for data migration and replication from MongoDB Community/Advanced, and Atlas to Percona Server for MongoDB.
  • Simple management: Basic CLI commands for start, pause, resume, finalize, and status monitoring
  • HTTP API: Start, finalize, pause, resume, and check replication status via HTTP endpoints.
  • Detailed logging: Comprehensive logging enables you to monitor the migration process and assists in troubleshooting.
  • Observability: PLM provides basic Prometheus metrics available for collection via PMM or any other monitoring tool of your choice.

Supported versions and deployments

Percona Link for MongoDB is available for replica set to replica set synchronization within the same major MongoDB versions (6.0 to 6.0, 7.0 to 7.0, 8.0 to 8.0).

Minimum patch versions: 6.0.17, 7.0.13, 8.0.0 respectively.

Check other limitations

Get started

Check out our installation guide and follow the step-by-step instructions to get started with PLM. The tool is designed to be straightforward to set up and use, even for those new to MongoDB migration tools.

This MVP release is just the beginning. Your real-world experience and feedback are invaluable as we evolve Percona Link for MongoDB. We encourage you to explore PLM for your non-production migration scenarios and share your insights:

  • What challenges did it solve for you?
  • What features would you like to see next?
  • How can we make it even better for your specific use cases?

Please contact your Percona representative for any questions and to share your feedback

Last update: June 5, 2025
Created: June 5, 2025