docs: Highlight notes on apt upgrades for perf.

This commit is contained in:
Tim Abbott
2017-10-23 17:41:25 -07:00
parent a174455ae1
commit 8a32f012bf

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@@ -48,8 +48,10 @@ in bursts.
take several minutes to run. The upgrade process automatically take several minutes to run. The upgrade process automatically
minimizes disruption by running these first, before beginning the minimizes disruption by running these first, before beginning the
user-facing downtime. However, if you'd like to watch the downtime user-facing downtime. However, if you'd like to watch the downtime
phase of the upgrade closely, we recommend [running them first phase of the upgrade closely, we recommend
manually](expensive-migrations.html). [running them first manually](expensive-migrations.html) and as well
as the usual trick of
[doing an apt upgrade first](prod-maintain-secure-upgrade.html#applying-ubuntu-system-updates).
* We've removed support for an uncommon legacy deployment model where * We've removed support for an uncommon legacy deployment model where
a Zulip server served multiple organizations on the same domain. a Zulip server served multiple organizations on the same domain.