diff --git a/group_vars/default/pvc.yml b/group_vars/default/pvc.yml
index bd37d1a..b846f47 100644
--- a/group_vars/default/pvc.yml
+++ b/group_vars/default/pvc.yml
@@ -83,13 +83,15 @@ pvc_routers:
 #   here, only by editing the `files/ceph/<cluster>/ceph.conf` file directly.
 #pvc_osd_memory_limit: 939524096
 # Zookeeper heap memory limit, sets Xms and Xmx values to the Java process; default is 512M.
-# WARNING: Do not override the default when using "pvc_log_to_zookeeper"; in this situation Zookeeper
-#          requires a very large relative heap size due to the constant writes to a large key.
-#pvc_zookeeper_heap_limit: 64M
+# > WARNING: Unless you have an extremely limited amount of RAM, changing this setting is NOT RECOMMENDED.
+#            Lowering the heap memory may cause extremely poor performance in Zookeeper during some tasks,
+#            including schema validation at node startup and node logging into Zookeeper, or even crashes.
+#pvc_zookeeper_heap_limit: 128M
 # Zookeeper stack memory limit, sets Xss value to the Java process; default is 1024M.
-# WARNING: Do not override the default when using "pvc_log_to_zookeeper"; in this situation Zookeeper
-#          requires a very large relative stack size due to the constant writes to a large key.
-#pvc_zookeeper_stack_limit: 128M
+# > WARNING: Unless you have an extremely limited amount of RAM, changing this setting is NOT RECOMMENDED.
+#            Lowering the heap memory may cause extremely poor performance in Zookeeper during some tasks,
+#            including schema validation at node startup and node logging into Zookeeper, or even crashes.
+#pvc_zookeeper_stack_limit: 256M
 
 # Node list
 # > Every node configured with this playbook must be specified in this list.