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Diffstat (limited to 'doc/development/migration_style_guide.md')
| -rw-r--r-- | doc/development/migration_style_guide.md | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/development/migration_style_guide.md b/doc/development/migration_style_guide.md index 84679a78545..78acd729b9b 100644 --- a/doc/development/migration_style_guide.md +++ b/doc/development/migration_style_guide.md @@ -153,8 +153,9 @@ and therefore it does not have any records yet. When using a single-transaction migration, a transaction will hold on a database connection for the duration of the migration, so you must make sure the actions in the migration -do not take too much time: In general, queries executed in a migration need to fit comfortably -within `15s` on GitLab.com. +do not take too much time: GitLab.com’s production database has a `15s` timeout, so +in general, the cumulative execution time in a migration should aim to fit comfortably +in that limit. Singular query timings should fit within the [standard limit](query_performance.md#timing-guidelines-for-queries) In case you need to insert, update, or delete a significant amount of data, you: |