diff --git a/modules/install/pages/upgrade-cluster-online-full-capacity.adoc b/modules/install/pages/upgrade-cluster-online-full-capacity.adoc
index a6a1da4ac0..1f87bb58f1 100644
--- a/modules/install/pages/upgrade-cluster-online-full-capacity.adoc
+++ b/modules/install/pages/upgrade-cluster-online-full-capacity.adoc
@@ -30,6 +30,9 @@ For information on _swap rebalance_, see xref:install:upgrade-procedure-selectio
 
 * Nodes will be upgraded _one at a time_.
 
+NOTE: Running Eventing functions during a rolling upgrade increases rebalance duration.
+To reduce rebalance time, pause all your Eventing functions before starting the upgrade, and resume them after the upgrade completes.
+
 The overall procedure is described in seven stages, below.
 
 [#prepare-a-spare-node]