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[stable27] Add note about migrations run by background jobs #10717

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SystemKeeper merged 1 commit into from
Jul 10, 2023
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[stable27] Add note about migrations run by background jobs #10717

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8 changes: 8 additions & 0 deletions admin_manual/maintenance/upgrade.rst
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Expand Up @@ -28,6 +28,14 @@ Nextcloud must be upgraded step by step:
* **You cannot skip major releases.** Please re-run the upgrade until you have reached the highest available (or applicable) release.
* Example: 18.0.5 -> 18.0.11 -> 19.0.5 -> 20.0.2

**Wait for background migrations to finish after major upgrades**. After upgrading to a new major version, some migrations are scheduled to run
as a background job. If you plan to upgrade directly to another major version (e.g. 24 -> 25 -> 26) you need to make sure these
migrations were executed before starting the next upgrade. To do so you should run the ``cron.php`` file 2-3 times, for example::

$ sudo -u www-data php -f /var/www/nextcloud/cron.php

For more information about background jobs see :doc:`../configuration_server/background_jobs_configuration`.

**Upgrading is disruptive**. Your Nextcloud server will be put into maintenance
mode, so your users will be locked out until the upgrade is completed. Large
installations may take several hours to complete the upgrade. Nevertheless usual
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