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Reducing downtime on starting replication (#58362)

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Co-authored-by: Sunbrye Ly <56200261+sunbrye@users.noreply.github.com>
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Pallavi
2025-12-16 11:36:18 -08:00
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data/reusables/enterprise_installation/replication-command.md
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@@ -6,3 +6,4 @@
> [!WARNING]
> `ghe-repl-start` causes a brief outage on the primary server, during which users may see internal server errors. To provide a friendlier message, run `ghe-maintenance -s` on the primary node before running `ghe-repl-start` on the replica node to put the appliance in maintenance mode. Once replication starts, disable maintenance mode with `ghe-maintenance -u`. Git replication will not progress while the primary node is in maintenance mode.
> If you are running version 3.14.20, 3.15.15, 3.16.11, 3.17.8, 3.18.2, or a later version including future releases like 3.19, you no longer need to put the primary in maintenance mode prior to running `ghe-repl-start`. This command is no longer expected to cause an outage on the primary server. However, when setting up a new replica, `ghe-repl-start` won't cause an outage as long as you run `ghe-config-apply` between `ghe-repl-setup` and `ghe-repl-start`. Skipping `ghe-config-apply` and going straight from `ghe-repl-setup` to `ghe-repl-start` will still result in an outage.