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takahe/docs/releases/0.10.rst
Andrew Godwin 7f483af8d3 Rework Stator to use a next field and no async
2023-07-07 15:14:06 -06:00

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0.9

Released: Not Yet Released

This release is a polish release that is prepping us for the road to 1.0.

This release's major changes:

  • Stator, the background task system, has been significantly reworked to require smaller indexes, spend less time scheduling, and has had most of its async nature removed, as this both reduces deadlocks and improves performance in most situations (the context switching was costing more than the gains from talking to other servers asynchronously).
  • TBC

If you'd like to help with code, design, or other areas, see /contributing to see how to get in touch.

You can download images from Docker Hub, or use the image name jointakahe/takahe:0.10.

Upgrade Notes

Migrations

There are new database migrations; they are backwards-compatible, but contain very significant index changes to all of the main tables that may cause the PostgreSQL deadlock detector to trigger if you attempt to apply them while your site is live.

We recommend:

  • Temporarily stopping all instances of the webserver and Stator
  • Applying the migration (should be less than a few minutes on most installs)
  • Restarting the instances of webserver and Stator