PowerDNS Authoritative Server 4.8.0 with Lightning Stream support

Jun 1, 2023

Hello!

This is the release of Authoritative Server 4.8.0.

In Authoritative Server 4.8, the LMDB backend gains a new Lightning Stream-compatible schema, which requires a data migration (this is automatic, and there is no migration back to the old schema). LMDB backend users should pay extra attention to the Upgrade Notes.

Lightning Stream is an open source data syncer that allows multiple nodes to sync LMDB (Lightning Memory-Mapped Database) data to and from an S3 (compatible) bucket. This has particular advantages in distributed and/or large-scale applications (i.e. ~1 million records), making DNS replication much, much easier to manage.

We are excited about how Lightning Stream simplifies running multiple distributed PowerDNS Authoritative servers, with full support for keeping record data and DNSSEC keys in sync, from multiple writers.

4.8.0 improves on the logic for dealing with domains existing twice in the database when two Lightning Stream nodes manage to add it at the same time. It also contains a few other fixes. A full list of changes can be found in the changelog.

Please make sure to read the Upgrade Notes before upgrading.

The tarball (signature) is available at downloads.powerdns.com. Packages for various distributions are available from repo.powerdns.com.

Please send us all feedback and issues you might have via the mailing list, or in case of a bug, via GitHub.

About the author

Peter van Dijk

Peter van Dijk

Senior Developer at PowerDNS

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