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Link to the "What requires downtime?" page from the Migration Style Guide

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Nick Thomas 2016-10-02 12:32:30 +01:00
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doc/development/migration_style_guide.md
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@ -9,10 +9,10 @@ a big burden for most organizations. For this reason it is important that your
migrations are written carefully, can be applied online and adhere to the style guide below.
Migrations should not require GitLab installations to be taken offline unless
_absolutely_ necessary. If a migration requires downtime this should be
clearly mentioned during the review process as well as being documented in the
monthly release post. For more information see the "Downtime Tagging" section
below.
_absolutely_ necessary - see the ["What Requires Downtime?"](what_requires_downtime.md)
page. If a migration requires downtime, this should be clearly mentioned during
the review process, as well as being documented in the monthly release post. For
more information, see the "Downtime Tagging" section below.
When writing your migrations, also consider that databases might have stale data
or inconsistencies and guard for that. Try to make as little assumptions as possible