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vandelay

2 posts with the tag “vandelay”

Migration proxy: zero-downtime upgrades

- 6 min read
Mauro D.
Mauro D.
Project Maintainer

A good number of Stalwart deployments are still on an older release for one reason: upgrading between versions meant a maintenance window, and downtime on a mail server is the one thing nobody wants to schedule. We promised a zero-downtime path built from two tools. Vandelay, the data-transfer half, shipped a couple of weeks ago. Today we are shipping the second and final part, the migration proxy, and with it the full workflow is real: a live deployment can move from an older Stalwart version to v0.16 one account at a time, with no scheduled maintenance window and nothing for end users to reconfigure.

Vandelay: the JMAP importer-exporter

- 7 min read
Mauro D.
Mauro D.
Project Maintainer

Many Stalwart deployments are running an older version not because the operators want to, but because upgrading across a major release can mean migrating off an older database schema, and that means downtime. We promised a zero-downtime migration path built from two parts, a proxy and a transfer tool, and the question we hear most is when it will arrive. Today we are shipping the first part: Vandelay, a one-shot account migration and backup utility for JMAP that also imports from IMAP, CalDAV, CardDAV, WebDAV, ManageSieve, Maildir, Google Takeout, and (experimentally) Microsoft Exchange.