diff --git a/charts/ace/README.md b/charts/ace/README.md
index 1757e1f0e4..e762fed56d 100644
--- a/charts/ace/README.md
+++ b/charts/ace/README.md
@@ -92,6 +92,7 @@ The following table lists the configurable parameters of the `ace` chart and the
 | global.monitoring.agent                                   | Name of monitoring agent (eg "prometheus.io/operator")                                                                                                                                                                                         | <code>""</code>                                                                                                                                                                                |
 | global.monitoring.serviceMonitor.labels                   | Specify the labels for ServiceMonitor. Prometheus crd will select ServiceMonitor using these labels. Only usable when monitoring agent is `prometheus.io/operator`.                                                                            | <code>{}</code>                                                                                                                                                                                |
 | global.monitoring.exporter.resources.requests.memory      | cpu: 100m                                                                                                                                                                                                                                      | <code>128Mi</code>                                                                                                                                                                             |
+| global.monitoring.exporter.resources.limits.memory        |                                                                                                                                                                                                                                                | <code>256Mi</code>                                                                                                                                                                             |
 | global.distro.openshift                                   |                                                                                                                                                                                                                                                | <code>false</code>                                                                                                                                                                             |
 | global.distro.ubi                                         |                                                                                                                                                                                                                                                | <code>""</code>                                                                                                                                                                                |
 | global.infra.storageClass.name                            |                                                                                                                                                                                                                                                | <code>"standard"</code>                                                                                                                                                                        |
diff --git a/charts/ace/values.yaml b/charts/ace/values.yaml
index e3f42a0eab..1ebda324ce 100644
--- a/charts/ace/values.yaml
+++ b/charts/ace/values.yaml
@@ -182,6 +182,8 @@ global:
         requests:
           # cpu: 100m
           memory: 128Mi
+        limits:
+          memory: 256Mi
 
   distro:
     openshift: false
diff --git a/charts/opscenter-features/templates/featuresets/opscenter-datastore/kubedb.yaml b/charts/opscenter-features/templates/featuresets/opscenter-datastore/kubedb.yaml
index ca35fb40c9..c6dca8befd 100644
--- a/charts/opscenter-features/templates/featuresets/opscenter-datastore/kubedb.yaml
+++ b/charts/opscenter-features/templates/featuresets/opscenter-datastore/kubedb.yaml
@@ -36,6 +36,7 @@ sidekick:
 
 {{- if eq (include "distro.openshift" $) "true" }}
 {{ $vals = mergeOverwrite $vals (dict "global" (dict "distro" .Values.distro)) }}
+{{ $vals = mergeOverwrite $vals (dict "kubedb-crd-manager" (dict "removeUnusedCRDs" false)) }}
 {{- end }}
 
 apiVersion: ui.k8s.appscode.com/v1alpha1