From a2d7e008f96cf8fa687f710ad95b4feea9b5e54b Mon Sep 17 00:00:00 2001 From: Luana Dos Santos Date: Thu, 5 Mar 2026 13:08:44 -0300 Subject: [PATCH 1/2] W-18233334-karpenter-node-downscaling --- .../modules/ROOT/pages/ch2-understand-app-restart.adoc | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/cloudhub-2/modules/ROOT/pages/ch2-understand-app-restart.adoc b/cloudhub-2/modules/ROOT/pages/ch2-understand-app-restart.adoc index 19cc7982..2bb2159b 100644 --- a/cloudhub-2/modules/ROOT/pages/ch2-understand-app-restart.adoc +++ b/cloudhub-2/modules/ROOT/pages/ch2-understand-app-restart.adoc @@ -72,6 +72,16 @@ At least two thirds of the replicas remain available throughout the optimization If the compute infrastructure suffers a failure, CloudHub 2.0 moves your application to a healthy infrastructure and restarts the application replicas. Likewise, during infrastructure maintenance, the platform moves application replicas running on a compute infrastructure that becomes impaired or end-of-life onto a new infrastructure to ensure availability. +[[karpenter-node-downscaling]] +== Karpenter Node Downscaling in Private Spaces + +In Private Spaces, CloudHub 2.0 uses Karpenter to manage node lifecycle. When Karpenter downscales nodes to remove underused capacity, applications running on those nodes are restarted as replicas move to remaining nodes. Restarts occur once per week at most, within a random 2-hour window that starts between Saturday 0:00 AM and 4:00 AM in the Private Space region's local timezone. + +[NOTE] +==== +Apps in a Private Space can restart during Karpenter node downscaling during this weekly window. Design for resiliency so that restarts have minimal impact. See xref:ch2-ha-dr.adoc[]. +==== + == Security Patching To mitigate security vulnerabilities, CloudHub 2.0 patches and restarts applications every month. See the https://www.salesforce.com/en-us/wp-content/uploads/sites/4/documents/legal/Agreements/versioning-back-support-policy.pdf[Critical Security Vulnerabilities] policy. From 14c89de176ee6a6839155bfea97797f49db77e65 Mon Sep 17 00:00:00 2001 From: Luana Dos Santos Date: Thu, 5 Mar 2026 13:13:03 -0300 Subject: [PATCH 2/2] typo --- cloudhub-2/modules/ROOT/pages/ch2-understand-app-restart.adoc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/cloudhub-2/modules/ROOT/pages/ch2-understand-app-restart.adoc b/cloudhub-2/modules/ROOT/pages/ch2-understand-app-restart.adoc index 2bb2159b..f38c1b3e 100644 --- a/cloudhub-2/modules/ROOT/pages/ch2-understand-app-restart.adoc +++ b/cloudhub-2/modules/ROOT/pages/ch2-understand-app-restart.adoc @@ -75,7 +75,7 @@ If the compute infrastructure suffers a failure, CloudHub 2.0 moves your applica [[karpenter-node-downscaling]] == Karpenter Node Downscaling in Private Spaces -In Private Spaces, CloudHub 2.0 uses Karpenter to manage node lifecycle. When Karpenter downscales nodes to remove underused capacity, applications running on those nodes are restarted as replicas move to remaining nodes. Restarts occur once per week at most, within a random 2-hour window that starts between Saturday 0:00 AM and 4:00 AM in the Private Space region's local timezone. +In Private Spaces, CloudHub 2.0 uses Karpenter to manage node lifecycle. When Karpenter downscales nodes to remove underused capacity, applications running on those nodes are restarted as replicas move to remaining nodes. Restarts occur once per week at most, within a random two-hour window that starts between Saturday 12:00 AM and 4:00 AM in the Private Space region's local time zone. [NOTE] ====